{"id":4340,"date":"2025-09-16T15:36:38","date_gmt":"2025-09-16T09:06:38","guid":{"rendered":"https:\/\/thetysmyanmar.ohofusion.com\/?p=4340"},"modified":"2025-09-17T07:50:45","modified_gmt":"2025-09-17T01:20:45","slug":"gpt-5-codex","status":"publish","type":"post","link":"https:\/\/www.thetysmyanmar.com\/en\/blog\/gpt-5-codex\/","title":{"rendered":"GPT-5 Codex \u2014 OpenAI's Best AI Coding Assistant"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1310.4px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\" style=\"--awb-text-color:#2e2e2e;\"><p><b><span data-contrast=\"auto\">GPT-5 Codex<\/span><\/b><span data-contrast=\"auto\"> \u1006\u102d\u102f\u1010\u102c \u101e\u1004\u1037\u103a\u101b\u1032\u1037 programming workflow \u1000\u102d\u102f \u1021\u101c\u103d\u101a\u103a\u1010\u1000\u1030 \u1021\u1019\u103c\u1014\u103a\u1019\u103c\u103e\u1004\u103a\u1037\u1010\u1004\u103a\u1015\u1031\u1038\u101b\u1014\u103a \u101b\u100a\u103a\u101b\u103d\u101a\u103a\u1011\u102c\u1038\u1010\u1032\u1037 advanced AI coding model \u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u2014<\/span><span data-ccp-props=\"\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Code generate (function \u1019\u103b\u102d\u102f\u1038\u1005\u102f\u1036 \u1016\u1014\u103a\u1010\u102e\u1038\u1001\u103c\u1004\u103a\u1038)<\/span><span data-ccp-props=\"\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Debugging & fix suggestions<\/span><span data-ccp-props=\"\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Refactoring & optimization<\/span><span data-ccp-props=\"\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Unit test generation<\/span><span data-ccp-props=\"\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Documentation (inline comments, README, API docs)<\/span><\/li>\n<\/ul>\n<p>\u1011\u102d\u102f\u1037\u1021\u1015\u103c\u1004\u103a multi-file project context, long-context reasoning, tool-calling\/agentic workflows \u1000\u102d\u102f \u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u1015\u1031\u1038\u1015\u103c\u102e\u1038 IDE\/CI\/CD \u1010\u102d\u102f\u1037\u1014\u103e\u1004\u1037\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u100a\u103a\u1038\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n<\/div><div class=\"fusion-image-element\" style=\"text-align:center;--awb-max-width:800px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\"fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1280\" height=\"720\" alt=\"GPT-5 Codex\" title=\"GPT-5 Codex\" src=\"https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex.jpg\" class=\"img-responsive wp-image-4341\" srcset=\"https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex-200x113.jpg 200w, https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex-400x225.jpg 400w, https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex-600x338.jpg 600w, https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex-800x450.jpg 800w, https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex-1200x675.jpg 1200w, https:\/\/www.thetysmyanmar.com\/wp-content\/uploads\/sites\/13\/2025\/09\/GPT-5-Codex.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 1280px\" \/><\/span><\/div><div class=\"fusion-text fusion-text-2\" style=\"--awb-text-color:#2e2e2e;\"><h3 aria-level=\"2\"><b><span data-contrast=\"none\">Technical summary<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li><b><span data-contrast=\"auto\">\u1018\u102c\u101e\u102c\u1005\u1000\u102c\u1038\u101e\u102f\u1036\u1038<\/span><\/b><span data-contrast=\"auto\">: Python, JavaScript, TypeScript, Java, C#, Go, Ruby, SQL \u1014\u103e\u1004\u1037\u103a \u1021\u1001\u103c\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u1036\u1037\u1015\u102d\u102f\u1038\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Long-context handling<\/span><\/b><span data-contrast=\"auto\">: \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1016\u102d\u102f\u1004\u103a\u1014\u1032\u1037 conversation context \u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038 \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u101e\u102f\u1036\u1038\u1014\u102d\u102f\u1004\u103a\u101b\u1014\u103a (large context window support)\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Multimodal support<\/span><\/b><span data-contrast=\"auto\">: \u1000\u102d\u101b\u102d\u101a\u102c\u1010\u1005\u103a\u1001\u103b\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a code + text + diagrams \u1000\u102d\u102f \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u1001\u103c\u1004\u103a\u1038 (model variant \u1021\u1015\u1031\u102b\u103a \u1019\u1030\u1010\u100a\u103a\u104b)<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Agentic\/tool use<\/span><\/b><span data-contrast=\"auto\">: External tools (linters, test runners, package managers, file search) \u1000\u102d\u102f \u1001\u1031\u102b\u103a\u101a\u1030\u1015\u103c\u102e\u1038 step-by-step \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c workflow \u1019\u103b\u102c\u1038\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">API &amp; CLI access<\/span><\/b><span data-contrast=\"auto\">: Responses API \/ Codex CLI \u1021\u1010\u102d\u102f\u1004\u103a\u1038 developer workflows \u1011\u1032\u101e\u102d\u102f\u1037\u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">GPT-5 Codex \u101b\u1032\u1037 \u1021\u1013\u102d\u1000 \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1019\u103b\u102c\u1038 <\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ol>\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Code Generation &amp; Autocomplete<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><span data-contrast=\"auto\">Natural language prompt \u1010\u1005\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1031\u1038\u101c\u103b\u103e\u1004\u103a function\u104a class\u104a module \u1010\u1005\u103a\u1001\u102f\u1000\u102d\u102f auto-generate \u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Inline autocomplete: function body \u101b\u1031\u1038\u1005\u101b\u102c\u1019\u101c\u102d\u102f\u1015\u1032 parameter \u1019\u103b\u102c\u1038\u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u1010\u102d\u102f\u1038\u1011\u100a\u1037\u103a\u1015\u1031\u1038\u1010\u1010\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"2\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Debugging &amp; Fix Recommendation<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><span data-contrast=\"auto\">Error message\/stack trace \u1015\u1031\u1038\u101c\u102d\u102f\u1000\u103a\u101b\u102f\u1036\u1016\u103c\u1004\u1037\u103a bug root-cause \u1000\u102d\u102f \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u104a code patch suggestion \u1019\u103b\u102c\u1038 \u1011\u102f\u1010\u103a\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Regression risk analysis, suggested test cases \u1019\u103b\u102c\u1038 \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"3\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Refactoring &amp; Code Quality<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><span data-contrast=\"auto\">Legacy code \u1000\u102d\u102f read-only analysis \u1015\u103c\u102f\u104d refactor (extract functions, rename variables, simplify logic) \u1021\u1000\u103c\u1036\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Performance suggestions (algorithmic improvements) \u1014\u103e\u1004\u1037\u103a code style standardization (lint fixes) \u1019\u103b\u102c\u1038 \u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"4\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Multi-file &amp; Large Codebase Reasoning<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"6\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Repo level context \u1000\u102d\u102f\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1015\u103c\u102e\u1038 cross-file search &amp; changes \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a (e.g., \u201cFind where function X is used and update call sites\u201d)\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"5\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Test Generation &amp; Coverage<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><span data-contrast=\"auto\">Unit tests (pytest, jest, etc.) \u1000\u102d\u102f auto-generate\u104a edge-cases \u1010\u103d\u1031\u104a property-based tests \u1019\u103b\u102c\u1038 \u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Test coverage gaps \u101b\u103e\u102c\u1016\u103d\u1031\u1016\u1031\u102c\u103a\u1015\u103c\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"6\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Documentation &amp; Explanation<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><span data-contrast=\"auto\">Function docstrings, module README, API reference \u1021\u1019\u103b\u102d\u102f\u1038\u1019\u103b\u102d\u102f\u1038\u1000\u102d\u102f natural language \u1014\u1032\u1037 auto-create \u1016\u1014\u103a\u1010\u102e\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">\u201cExplain this code in plain language\u201d \u101c\u102d\u102f request \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101c\u1030\u1019\u1030\u1014\u1032\u1037\u101b\u103e\u1004\u103a\u1038\u1015\u103c\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"7\">\n<li aria-level=\"3\"><b><span data-contrast=\"none\"> Agentic Workflows (Automation)<\/span><\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"9\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Multi-step tasks \u1000\u102d\u102f \u1025\u1015\u1019\u102c \u201cCreate feature branch, implement X, add tests, open PR\u201d \u1005\u101e\u100a\u103a\u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u1006\u1031\u102c\u1004\u103a\u101b\u103d\u1000\u103a\u101b\u1014\u103a tool calls \u1001\u1031\u102b\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a (with appropriate permissions)\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">GitHub \/ IDE \/ Dev tools integration<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><b><span data-contrast=\"auto\">GitHub Copilot<\/span><\/b><span data-contrast=\"auto\">: GPT-5 Codex \u1021\u1001\u103c\u1031\u1001\u1036 model \u1000\u102d\u102f GitHub Copilot \u1021\u1014\u1031\u1014\u1032\u1037 IDE (VS Code) \u1019\u103e\u102c real-time assistant \u1021\u1016\u103c\u1005\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Codex CLI<\/span><\/b><span data-contrast=\"auto\">: Terminal-based workflows (generate file, run tests, commit changes) \u1021\u1010\u103d\u1000\u103a CLI integration \u1010\u103d\u1031\u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">CI\/CD<\/span><\/b><span data-contrast=\"auto\">: Pull request auto-review comments, suggested fixes, auto-generated test suites \u1010\u102d\u102f\u1037\u1000\u102d\u102f CI pipeline \u1011\u1032\u101e\u102d\u102f\u1037 \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Azure DevOps \/ GitHub Actions<\/span><\/b><span data-contrast=\"auto\">: automated code-review bots, regression detection, security scan assistant \u1019\u103b\u102c\u1038 \u1010\u1015\u103a\u1006\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">GPT-5 Codex \u1000\u102d\u102f \u1018\u101a\u103a\u101e\u1030\u1010\u103d\u1031\u00a0\u101e\u102f\u1036\u1038\u101e\u1004\u1037\u103a\u101e\u101c\u1032 <\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><b><span data-contrast=\"auto\">Frontend \/ Backend Developers<\/span><\/b><span data-contrast=\"auto\"> \u2014 rapid prototyping, boilerplate generation, debugging helpers<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">SRE \/ DevOps<\/span><\/b><span data-contrast=\"auto\"> \u2014 automation scripts, infra-as-code template generation, log parsing utilities<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Data Engineers \/ ML Engineers<\/span><\/b><span data-contrast=\"auto\"> \u2014 ETL scripts, data validation code, model-serving scaffold templates<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">QA Engineers<\/span><\/b><span data-contrast=\"auto\"> \u2014 unit\/integration test generation, fuzz tests<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Students &amp; Educators<\/span><\/b><span data-contrast=\"auto\"> \u2014 learning examples, explanations, step-by-step coding help<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Product Teams \/ SMEs<\/span><\/b><span data-contrast=\"auto\"> \u2014 internal tools, quick POCs without full dev resources<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Best Practices for Prompt Engineering<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><b><span data-contrast=\"auto\">Be explicit<\/span><\/b><span data-contrast=\"auto\"> \u2013 \u1018\u102c\u1018\u102c\u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u101a\u103a \u1006\u102d\u102f\u1010\u102c \u1010\u102d\u1000\u103b\u1005\u103d\u102c \u101b\u1031\u1038\u1015\u102b (language, framework, coding style, test framework \u1005\u101e\u1016\u103c\u1004\u1037\u103a)<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Provide context<\/span><\/b><span data-contrast=\"auto\"> \u2013 File snippets, repo tree, dependency descriptions \u1010\u102d\u102f\u1037 \u1011\u100a\u1037\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Define constraints<\/span><\/b><span data-contrast=\"auto\"> \u2013 Time complexity, Space complexity, External libraries \u101e\u102f\u1036\u1038\u101c\u102d\u102f\u1037\u101b\/\u1019\u101b \u1005\u101e\u100a\u1037\u103a \u1021\u1000\u103b\u102d\u102f\u1038\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038 \u1011\u100a\u1037\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Ask for small steps<\/span><\/b><span data-contrast=\"auto\"> \u2013 \u201cGive me a 3-step plan\u201d \u2192 \u1015\u103c\u102e\u1038\u1010\u1031\u102c\u1037 \u201cImplement step 1\u201d \u101c\u102d\u102f\u1021\u1006\u1004\u1037\u103a\u101c\u102d\u102f\u1000\u103a\u1019\u1031\u1038\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Request explanations<\/span><\/b><span data-contrast=\"auto\"> \u2013 \u1018\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1032\u1012\u102e\u1021\u1016\u103c\u1031\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u1015\u103d\u1032\u1011\u102f\u1010\u103a\u1015\u1031\u1038\u101e\u101c\u1032 \u1006\u102d\u102f\u1010\u102c reasoning \u1010\u102d\u102f\u1010\u102d\u102f\u1014\u1032\u1037 \u1010\u1031\u102c\u1004\u103a\u1038\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Use regeneration<\/span><\/b><span data-contrast=\"auto\"> \u2013 \u1015\u1011\u1019\u1026\u1038\u1005\u103d\u102c output \u1000 \u1019\u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101b\u1004\u103a prompt \u1015\u103c\u1014\u103a\u100a\u103e\u102d\u1015\u103c\u102e\u1038 regenerate \u101c\u102f\u1015\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Getting Started<\/span><\/b><\/h3>\n<ol>\n<li><b><span data-contrast=\"auto\">Sign up \/ API access<\/span><\/b><span data-contrast=\"auto\"> \u2192 GitHub Copilot, OpenAI Platform, Azure OpenAI \u1019\u103e\u102c API key enable \u101c\u102f\u1015\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Install Tools<\/span><\/b><span data-contrast=\"auto\"> \u2192 VS Code + Copilot extension \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a Codex CLI<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Try simple prompts<\/span><\/b><span data-contrast=\"auto\"> \u2192 Function \u1010\u1005\u103a\u1001\u102f generate \u101c\u102f\u1015\u103a\u1015\u103c\u102e\u1038 local test run<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Integrate workflow<\/span><\/b><span data-contrast=\"auto\"> \u2192 PR review \u1010\u103d\u1031\u1019\u103e\u102c Codex suggestion \u1011\u100a\u1037\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Automate cautiously<\/span><\/b><span data-contrast=\"auto\"> \u2192 Scaffold tasks \u1021\u1010\u103d\u1000\u103a \u101e\u102f\u1036\u1038\u1015\u102b\u104a Merge \u1019\u101c\u102f\u1015\u103a\u1001\u1004\u103a \u101c\u1030\u1014\u1032\u1037 Review \u101c\u102d\u102f\u1021\u1015\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ol>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Security, Privacy &amp; Legal Considerations<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li><b><span data-contrast=\"auto\">Sensitive Data<\/span><\/b><span data-contrast=\"auto\"> \u2192 API \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a Codex \u1000\u102d\u102f Private Keys, Secrets, PII \u1019\u1015\u1031\u1038\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Licensing<\/span><\/b><span data-contrast=\"auto\"> \u2192 Generated code \u101f\u102c Public code \u1014\u1032\u1037 \u1006\u1004\u103a\u1010\u1030\u1014\u102d\u102f\u1004\u103a\u1010\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a License \u1000\u102d\u102f \u101e\u1031\u1001\u103b\u102c \u1005\u1005\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Verification<\/span><\/b><span data-contrast=\"auto\"> \u2192 Always run tests &amp; security scans<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Access Control<\/span><\/b><span data-contrast=\"auto\"> \u2192 Automation \u1000\u102d\u102f Commit\/Deploy \u101c\u102f\u1015\u103a\u1001\u103d\u1004\u1037\u103a\u1019\u1015\u1031\u1038\u1019\u1001\u103b\u1004\u103a\u1038 Approval \u101c\u102d\u102f\u1021\u1015\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Regulatory domains<\/span><\/b><span data-contrast=\"auto\"> \u2192 Healthcare, Finance, Legal \u1005\u1010\u1032\u1037 Sensitive Domain \u1019\u103b\u102c\u1038\u1019\u103e\u102c Domain Expert Review \u101c\u102d\u102f\u1021\u1015\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Limitations &amp; Failure Modes<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li><b><span data-contrast=\"auto\">Incorrect Logic<\/span><\/b><span data-contrast=\"auto\"> \u2192 Compile \u1019\u103e\u1014\u103a\u1015\u1031\u1019\u101a\u1037\u103a Edge-case error \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Security Issues<\/span><\/b><span data-contrast=\"auto\"> \u2192 Weak cryptography, Hardcoded credentials \u1010\u102d\u102f\u1037 generate \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Overconfidence<\/span><\/b><span data-contrast=\"auto\"> \u2192 \u1019\u101e\u1031\u1001\u103b\u102c\u1010\u102c\u1000\u102d\u102f Fact \u101c\u102d\u102f \u1015\u103c\u1031\u102c\u1014\u102d\u102f\u1004\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Context Drift<\/span><\/b><span data-contrast=\"auto\"> \u2192 Long sessions \u1019\u103e\u102c context \u1015\u103b\u1000\u103a\u1014\u102d\u102f\u1004\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Cost<\/span><\/b><span data-contrast=\"auto\"> \u2192 Token usage \u1019\u103b\u102c\u1038\u101b\u1004\u103a API cost \u1010\u1000\u103a\u1014\u102d\u102f\u1004\u103a<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Cost &amp; Performance Tips<\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<ul>\n<li><b><span data-contrast=\"auto\">Balance reasoning depth vs cost<\/span><\/b><span data-contrast=\"auto\"> \u2192 Simple tasks \u1021\u1010\u103d\u1000\u103a low reasoning, Complex tasks \u1021\u1010\u103d\u1000\u103a high reasoning \u101e\u102f\u1036\u1038\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Cache prompts<\/span><\/b><span data-contrast=\"auto\"> \u2192 Similar tasks \u1021\u1010\u103d\u1000\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c outputs \u101e\u102f\u1036\u1038\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Batch generation<\/span><\/b><span data-contrast=\"auto\"> \u2192 Small functions \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1005\u103a\u1001\u102b\u1010\u100a\u103a\u1038 generate \u101c\u102f\u1015\u103a\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Use mini\/nano variants<\/span><\/b><span data-contrast=\"auto\"> \u2192 Cheap + Quick completions \u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"2\"><b><span data-contrast=\"none\">Conclusion <\/span><\/b><span data-ccp-props=\"{\">\u00a0<\/span><\/h3>\n<p><b><span data-contrast=\"auto\">GPT-5 Codex<\/span><\/b><span data-contrast=\"auto\"> \u101e\u100a\u103a modern software development workflows \u1021\u1010\u103d\u1000\u103a \u101e\u102c\u1019\u1014\u103a code completion \u1011\u1000\u103a \u1014\u1031\u102c\u1000\u103a\u1011\u1015\u103a\u1010\u102d\u102f\u1038\u1010\u1000\u103a\u1011\u102c\u1038\u101e\u100a\u1037\u103a AI Partner \u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b Rapid prototyping, debugging, repo-wide refactoring, test generation, documentation \u2014 \u1024\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1010\u1031\u102c\u103a\u1010\u1031\u102c\u103a\u1010\u102d\u1000\u103b\u1005\u103d\u102c \u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u1015\u1031\u1038\u1015\u103c\u102e\u1038 developer productivity \u1000\u102d\u102f \u1021\u101c\u103d\u1014\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a <\/span><b><span data-contrast=\"auto\">\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101b\u1031\u1038\u104a license compatibility \u1014\u103e\u1004\u1037\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038<\/span><\/b><span data-contrast=\"auto\"> \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u1019\u1031\u1037\u1015\u1032 \u1021\u1019\u103c\u1032 validate \u101c\u102f\u1015\u103a\u101b\u1015\u102b\u1019\u100a\u103a\u104b<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<\/div><div class=\"fusion-text fusion-text-3\" style=\"--awb-text-color:#2e2e2e;\"><p>If you are interested in or want to learn more about Microsoft 365 and other products,\u00a0<u><strong><a href=\"https:\/\/www.thetysmyanmar.com\/en\/contact-thetys-one-stop-solution-service\/\" target=\"_blank\" rel=\"noopener\">Thetys Myanmar<\/a><\/strong>\u00a0<\/u>You can contact us to discuss details.<\/p>\n<p>reference website :\u00a0<strong><a href=\"https:\/\/www.fusionsol.com\/\" target=\"_blank\" rel=\"noopener\"><u>Fusion Solution<\/u><\/a><\/strong>,\u00a0<strong><a href=\"https:\/\/fusionsol.com.vn\/\"><u>Fusion Solution Vietnam<\/u><\/a><\/strong><\/p>\n<h4 class=\"fusion-responsive-typography-calculated\" data-fontsize=\"24\" data-lineheight=\"33.6px\"><strong>Related Articles<\/strong><\/h4>\n<ul>\n<li class=\"entry-title fusion-post-title fusion-responsive-typography-calculated\" data-fontsize=\"28\" data-lineheight=\"36.4px\"><strong><a href=\"https:\/\/www.thetysmyanmar.com\/en\/blog\/customer-relationship-management-crm\/\">What is Customer Relationship Management CRM? How to use it?<\/a><\/strong><\/li>\n<li class=\"entry-title fusion-post-title fusion-responsive-typography-calculated\" data-fontsize=\"28\" data-lineheight=\"36.4px\"><strong><a href=\"https:\/\/www.thetysmyanmar.com\/en\/blog\/chatbot-meaning\/\">Chatbot Definition \u2013 What You Need to Know<\/a><\/strong><\/li>\n<li class=\"entry-title fusion-post-title fusion-responsive-typography-calculated\" data-fontsize=\"28\" data-lineheight=\"36.4px\"><strong><a href=\"https:\/\/www.thetysmyanmar.com\/en\/blog\/power-bi-%e1%80%a1%e1%80%80%e1%80%bc%e1%80%b1%e1%80%ac%e1%80%84%e1%80%ba%e1%80%b8\/\">More about Power B<\/a><\/strong><\/li>\n<li class=\"entry-title fusion-post-title fusion-responsive-typography-calculated\" data-fontsize=\"28\" data-lineheight=\"36.4px\"><strong><a href=\"https:\/\/www.thetysmyanmar.com\/en\/blog\/figurine-nano-banana-ai-trend\/\">Make figurines and join the Nano Banana AI Trend<\/a><\/strong><\/li>\n<li class=\"entry-title fusion-post-title 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--><\/p>\n<ul>\n<li class=\"pf0\"><strong><a class=\"cf0\" href=\"https:\/\/fusionsol.com.vn\/blog\/power-bi-la-gi\/\"><span class=\"cf0\">Power BI <\/span><span class=\"cf0\">l\u00e0<\/span> <span class=\"cf0\">g\u00ec<\/span><span class=\"cf0\">?<\/span><\/a><\/strong><\/li>\n<li class=\"pf0\"><strong><a class=\"cf0\" href=\"https:\/\/fusionsol.com.vn\/blog\/luu-tru-dam-may\/\"><span class=\"cf0\">L\u01b0u<\/span> <span class=\"cf0\">tr\u1eef<\/span> <span class=\"cf0\">\u0111\u00e1m<\/span> <span class=\"cf0\">m\u00e2y<\/span><\/a><\/strong><\/li>\n<\/ul>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<p><!--EndFragment --><\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":4341,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[241],"tags":[257,255],"class_list":["post-4340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-chatgpt","tag-openai"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>GPT-5 Codex: AI Coding Assistant<\/title>\n<meta name=\"description\" content=\"GPT-5 Codex \u101e\u100a\u103a code generation\u104a debugging\u104a multi-file workflows \u1014\u103e\u1004\u1037\u103a agentic automation \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a OpenAI \u101b\u1032\u1037 AI Coding \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u101e\u100a\u103a\" \/>\n<meta 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