GPT-5 Codex vs Claude Sonnet 4.5 (Clear Winner) скачать в хорошем качестве

GPT-5 Codex vs Claude Sonnet 4.5 (Clear Winner)

🤖 I put GPT-5 Codex and Claude Sonnet 4.5 head-to-head to build the same Next.js app. Identical prompts, identical environments, identical tasks. The results were clear. 🔄 CODEX UPDATE: When GPT-5 first launched, I tested it against Claude Code in Cursor:    • GPT-5 vs Claude Code: Testing ChatGPT's NE...   Now OpenAI released the official Codex agent with new modes and capabilities. This is the updated head-to-head test using GPT-5 Codex vs Claude Sonnet 4.5. You can also watch my Codex in Cursor Full Setup Guide here:    • Codex in Cursor: Complete Setup & Tutorial...   In this comprehensive comparison, I gave both AI coding agents the exact same detailed prompt to build a PRD Generator web app. I tracked planning quality, implementation speed, code architecture, and final results. ⏰ TIMESTAMPS: 00:00 - Test project setup 01:02 - Explaining the app we are going to build 02:14 - The planning mode prompt for the test case 06:47 - Overview of the Codex and Claude models we are using 08:30 - Prompting Codex and Claude in planning mode 15:47 - Reviewing Codex and Claude's responses 16:59 - Crafting a follow-up prompt 19:25 - Responding to both Codex and Claude with a follow-up prompt 21:14 - Reviewing TODO files created by Codex and Claude 22:59 - Observing the implementation phase as Codex and Claude build our app 26:26 - Codex review: PRD Generator app Codex built 28:36 - Claude review: PRD Generator app Claude built 30:07 - Testing the functionality of app built by Codex 32:06 - Testing the functionality of app built by Claude 36:48 - Reviewing the mobile version of each app 38:28 - Declaring a winner 🎯 THE TEST: *Task:* Build a PRD Generator web app with Next.js, TypeScript, and Tailwind *Conditions:* Identical starting environments (blank Next.js projects) Identical detailed prompts (2000+ word specification) Same testing criteria (UI, functionality, mobile responsiveness) *Models Used:* GPT-5 Codex (High mode) Claude Sonnet 4.5 🚀 WHAT I TESTED: *Phase 1 - Planning:* Response quality and depth Clarifying questions asked File structure and architecture decisions TODO file detail and organization *Phase 2 - Implementation:* Build speed and efficiency Code quality and organization Autonomous vs. requiring approval Error handling during build *Phase 3 - Results:* UI design and polish Feature completeness Mobile responsiveness Actual functionality testing 📊 KEY FINDINGS: *Build Times:* Codex: 18 minutes 25 seconds Claude Code: 13 minutes 38 seconds *Planning Depth:* Codex: Cleaner architecture, better file structure Claude Code: More comprehensive, better UX focus *Implementation:* Codex: Fully autonomous (Agent Full Access mode) Claude Code: Required bash command approvals *Final Results:* [Watch to find out - but in my opinion there's a clear winner!] 💡 DETAILED COMPARISON: *Codex Strengths:* Faster response times in planning phase Cleaner, more scalable file structure Better separation of concerns Fully autonomous implementation *Claude Code Strengths:* More detailed planning documentation Better UX considerations upfront More comprehensive TODO files Faster overall build time ⚠️ METHODOLOGY NOTES: Used Claude Sonnet 4.5 to help craft neutral follow-up prompts Kept conditions as identical as possible Accepted all optimization suggestions from both No intervention during build phase Tested same features on both apps 🔗 RESOURCES: PRD Template System: https://snapperai.io/prd-templates Codex Setup: https://chat.openai.com/codex Claude Code: Available in Cursor IDE Cursor IDE: https://cursor.sh Sign up for updates: https://snapperai.io 📺 RELATED VIDEOS: GPT-5 Codex Setup Tutorial:    • Codex in Cursor: Complete Setup & Tutorial...   My Original GPT-5 vs Claude Code Test:    • GPT-5 vs Claude Code: Testing ChatGPT's NE...   AgentBuilder Tutorial:    • OpenAI Agent Builder: Getting Started Guide   🎯 PERFECT FOR: Developers choosing between Codex and Claude Code Teams evaluating AI coding assistants Anyone curious about GPT-5 Codex capabilities Cursor IDE users optimizing their workflow Comparison shoppers for AI development tools ⚡ BOTTOM LINE: Both are powerful, but one clearly outperformed in this real-world test. Claude Code was faster, but speed isn't everything. Watch to see which one built the better app and why the winner emerged. 💬 YOUR EXPERIENCE? Have you used both Codex and Claude Code? Which do you prefer and why? Drop your experience in the comments! --- 🎁 STAY CONNECTED: 👉 SUBSCRIBE for more AI coding comparisons 👉 Newsletter: https://snapperai.io 👉 Follow on X: https://x.com/SnapperAI