GPT-5.1 Thinking vs Mistral Large 2: Specs & Benchmark Comparison

CharacteristicGPT-5.1 ThinkingMistral Large 2
CompanyOpenAIMistral AI
Release DateNovember 11, 2025July 24, 2024
Parameters123B
MultimodalYesNo
Context (input)256K128K
Context (output)128K128K
Input Price / 1M$3.00$2.00
Output Price / 1M$12.00$6.00
Average Score0.90.9

Verdict

GPT-5.1 Thinking leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: GPT-5.1 Thinking — 0.9, Mistral Large 2 — 0.9.

API Cost

Mistral Large 2 is 1.9x cheaper: input $2.00/1M vs $3.00/1M tokens.

Context Window

GPT-5.1 Thinking supports a larger context: 256K vs 128K tokens.

Recency

GPT-5.1 Thinking is newer: released 11/11/2025 vs 7/24/2024.

More About These Models

Related Comparisons

The GPT-5.1 Thinking and Mistral Large 2 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.1 Thinking or Mistral Large 2 page. See also the complete list of AI model comparisons.