GPT-5.1-Codex-Mini vs Mistral Large 2
Compare GPT-5.1-Codex-Mini by OpenAI against Mistral Large 2 by Mistral AI, context windows of 400K vs 128K, tested across 23 shared challenges. Updated May 2026.
Which is better, GPT-5.1-Codex-Mini or Mistral Large 2?
GPT-5.1-Codex-Mini and Mistral Large 2 are both competitive models. GPT-5.1-Codex-Mini costs $1.5/M input tokens vs $8/M for Mistral Large 2. Context windows: 400K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.1-Codex-Mini and Mistral Large 2
GPT-5.1-Codex-Mini is made by openai while Mistral Large 2 is from mistral. GPT-5.1-Codex-Mini has a 400K token context window compared to Mistral Large 2's 128K. On pricing, GPT-5.1-Codex-Mini costs $1.5/M input tokens vs $8/M for Mistral Large 2.
Per 1M tokens
GPT-5.1-Codex-Mini is cheaper on both — 5.3× input, 4.0× output
No community votes yet. On paper, GPT-5.1-Codex-Mini has the edge — bigger model tier, newer, bigger context window, major provider backing.
GPT-5.1-Codex-Mini is 4.0x cheaper per token — worth considering if cost matters.
Style Comparison
Mistral Large 2 uses 79.6x more emoji
