Claude vs ChatGPT for Coding in 2026
Product images: Anthropic and OpenAI official documentation pages I have worked in IT for about twenty years, and the question I hear from developers now is no longer whether to use an AI coding assistant but which one deserves the monthly bill. This guide compares Claude and ChatGPT for coding the way people search for it: cost, free options, benchmarks, Claude Code versus plain chat, and what ChatGPT offers that matches Claude Code. Every figure below comes from the vendors' own pages or a dated benchmark page that I read on October 28, 2026. I did not test either product myself. Quick answer Highest benchmark score: Claude Code . On the Artificial Analysis Coding Agent Index v2.0 , Claude Code with Claude Opus 5.5 scored 62 against 55 for Codex with GPT-6 Astra. Lower cost and faster per task: Codex . The same page lists $7.04 and 24.8 minutes per task for Codex with GPT-6 Astra, against $11.42 and 1.0 hour for Claude Code. Free starting point: ChatGPT Free, which OpenAI list...