Claude vs ChatGPT: Which Is Better for Agent Work?

Join Agent Skills Academy: https://www.skool.com/agentskillsacademy/about Artificial Analysis Coding Agent Index v1.3 puts Claude Code on Opus 5 and Codex on GPT-5.6 Sol in joint first. That pass rate is roughly two finished jobs in three. Both makers hand the finished check back to you. Real capture: notes.txt in, recap.md out, 833 bytes. The file was the proof, not exit code zero. ChatGPT is cheaper at the door. Write what done leaves on disk before you walk away. Comment CHECK if you want the door and the next build step. #ClaudeVsChatGPT #ClaudeCode #ChatGPT #AIAgents #AgenticAI #Claude