Claude Opus 4.5 vs Pixtral Large
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.5 by Anthropic wins on 10 of 14 benchmarks against Pixtral Large by Mistral, which leads on 4. 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 Pixtral Large's 1270, while Claude Opus 4.5 scores 89.5% on MMLU-Pro compared to Pixtral Large's 70.0%.
Coding: In coding, Claude Opus 4.5 scores 92.0% on HumanEval+ compared to Pixtral Large's 80.0%, while Claude Opus 4.5 scores 80.9% on SWE-bench Verified compared to Pixtral Large's 35.0%, while Claude Opus 4.5 scores 70.0% on LiveCodeBench compared to Pixtral Large's 40.0%.
Math: In math, Claude Opus 4.5 scores 90.0% on MATH compared to Pixtral Large's 74.0%, while Claude Opus 4.5 scores 96.5% on GSM8K compared to Pixtral Large's 90.0%.
Reasoning: In reasoning, Claude Opus 4.5 scores 87.0% on GPQA Diamond compared to Pixtral Large's 48.0%, while Claude Opus 4.5 scores 57.0% on ARC-AGI compared to Pixtral Large's 22.0%.
Context: In context, Claude Opus 4.5 scores 200K on Context Length compared to Pixtral Large's 131K.
Pricing Comparison
Claude Opus 4.5 costs $5.0/1M input tokens and $25.0/1M output tokens, while Pixtral Large costs $2.0/1M input and $6.0/1M output. Pixtral Large is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.5 generates output at 50 tok/s compared to Pixtral Large's 60 tok/s, and the time to first token is 1700 ms for Claude Opus 4.5 versus 400 ms for Pixtral Large. Pixtral Large 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, Pixtral Large is the stronger choice.
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Claude Opus 4.5 vs Pixtral Large — FAQ
Which is better, Claude Opus 4.5 or Pixtral Large?
Claude Opus 4.5 wins on more benchmarks overall (10 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 4.5 compare to Pixtral Large for coding?
Claude Opus 4.5 is better for coding, scoring 80.9% on SWE-bench Verified compared to 35.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Opus 4.5 cheaper than Pixtral Large?
Yes, Pixtral Large is cheaper. Claude Opus 4.5 costs $5.0/1M input and $25.0/1M output tokens. Pixtral Large costs $2.0/1M input and $6.0/1M output tokens.
Which is faster, Claude Opus 4.5 or Pixtral Large?
Pixtral Large is faster, generating output at 60 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 Pixtral Large comparison cover?
This comparison covers 14 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.