GPT-5.5 vs Mistral Large 2
Compare GPT-5.5 by OpenAI against Mistral Large 2 by Mistral AI, context windows of 1.1M vs 128K, tested across 23 shared challenges. Updated April 2026.
Which is better, GPT-5.5 or Mistral Large 2?
GPT-5.5 and Mistral Large 2 are both competitive models. GPT-5.5 costs $5/M input tokens vs $8/M for Mistral Large 2. Context windows: 1050K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.5 and Mistral Large 2
GPT-5.5 is made by openai while Mistral Large 2 is from mistral. GPT-5.5 has a 1050K token context window compared to Mistral Large 2's 128K. On pricing, GPT-5.5 costs $5/M input tokens vs $8/M for Mistral Large 2.
Per 1M tokens
GPT-5.5 wins input (1.6× cheaper)·Mistral Large 2 wins output (1.3× cheaper)
No community votes yet. On paper, GPT-5.5 has the edge — bigger model tier, newer, bigger context window, major provider backing.
Style Comparison
Mistral Large 2 uses 79.6x more emoji
