Claude Opus 4.1 vs OpenAI Codex Mini
Compare Claude Opus 4.1 by Anthropic against OpenAI Codex Mini by OpenAI, context windows of 200K vs 200K, tested across 10 shared challenges. Updated June 2026.
Which is better, Claude Opus 4.1 or OpenAI Codex Mini?
Claude Opus 4.1 and OpenAI Codex Mini are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $1.5/M for OpenAI Codex Mini. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and OpenAI Codex Mini
Claude Opus 4.1 is made by anthropic while OpenAI Codex Mini is from openai. Claude Opus 4.1 has a 200K token context window compared to OpenAI Codex Mini's 200K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $1.5/M for OpenAI Codex Mini.
Per 1M tokens
OpenAI Codex Mini is cheaper on both — 10× input, 13× output
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, newer.
OpenAI Codex Mini is 13x cheaper per token — worth considering if cost matters.
