Claude Opus 4.5 vs Mistral Large 25.12
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.5 by Anthropic wins on 9 of 15 benchmarks against Mistral Large 25.12 by Mistral, which leads on 6. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Claude Opus 4.5 scores 1468 on Chatbot Arena ELO compared to Mistral Large 25.12's 1418, while Claude Opus 4.5 scores 89.5% on MMLU-Pro compared to Mistral Large 25.12's 73.0%.
Coding: In coding, Claude Opus 4.5 scores 92.0% on HumanEval+ compared to Mistral Large 25.12's 82.0%, while Claude Opus 4.5 scores 80.9% on SWE-bench Verified compared to Mistral Large 25.12's 42.0%, while Claude Opus 4.5 scores 70.0% on LiveCodeBench compared to Mistral Large 25.12's 44.0%.
Math: In math, Claude Opus 4.5 scores 90.0% on MATH compared to Mistral Large 25.12's 78.0%, while Claude Opus 4.5 scores 96.5% on GSM8K compared to Mistral Large 25.12's 91.0%.
Reasoning: In reasoning, Claude Opus 4.5 scores 87.0% on GPQA Diamond compared to Mistral Large 25.12's 52.0%, while Claude Opus 4.5 scores 57.0% on ARC-AGI compared to Mistral Large 25.12's 28.0%.
Context: In context, Mistral Large 25.12 scores 262K on Context Length compared to Claude Opus 4.5's 200K.
Pricing Comparison
Claude Opus 4.5 costs $5.0/1M input tokens and $25.0/1M output tokens, while Mistral Large 25.12 costs $0.50/1M input and $1.5/1M output. Mistral Large 25.12 is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.5 generates output at 50 tok/s compared to Mistral Large 25.12's 70 tok/s, and the time to first token is 1700 ms for Claude Opus 4.5 versus 380 ms for Mistral Large 25.12. Mistral Large 25.12 delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math, Claude Opus 4.5 has the edge. For those who value affordability and speed, Mistral Large 25.12 is the stronger choice.
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Claude Opus 4.5 vs Mistral Large 25.12 — FAQ
Which is better, Claude Opus 4.5 or Mistral Large 25.12?
Claude Opus 4.5 wins on more benchmarks overall (9 vs 6). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 4.5 compare to Mistral Large 25.12 for coding?
Claude Opus 4.5 is better for coding, scoring 80.9% on SWE-bench Verified compared to 42.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Opus 4.5 cheaper than Mistral Large 25.12?
Yes, Mistral Large 25.12 is cheaper. Claude Opus 4.5 costs $5.0/1M input and $25.0/1M output tokens. Mistral Large 25.12 costs $0.50/1M input and $1.5/1M output tokens.
Which is faster, Claude Opus 4.5 or Mistral Large 25.12?
Mistral Large 25.12 is faster, generating output at 70 tok/s compared to 50 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Opus 4.5 vs Mistral Large 25.12 comparison cover?
This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, LiveCodeBench, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.