Claude Haiku 4.5 vs Mistral Large 25.12

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

Mistral Large 25.12 by Mistral wins on 13 of 18 benchmarks against Claude Haiku 4.5 by Anthropic, which leads on 5. 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, Mistral Large 25.12 scores 1418 on Chatbot Arena ELO compared to Claude Haiku 4.5's 1220, while Mistral Large 25.12 scores 73.0% on MMLU-Pro compared to Claude Haiku 4.5's 65.0%, while Claude Haiku 4.5 scores 17.6 on AA Intelligence Index compared to Mistral Large 25.12's 9.7.

Coding: In coding, Mistral Large 25.12 scores 82.0% on HumanEval+ compared to Claude Haiku 4.5's 78.0%, while Mistral Large 25.12 scores 42.0% on SWE-bench Verified compared to Claude Haiku 4.5's 30.0%, while Mistral Large 25.12 scores 44.0% on LiveCodeBench compared to Claude Haiku 4.5's 35.0%, while Claude Haiku 4.5 scores 43.9 on AA Coding Index compared to Mistral Large 25.12's 20.1.

Math: In math, Mistral Large 25.12 scores 78.0% on MATH compared to Claude Haiku 4.5's 70.0%, while Mistral Large 25.12 scores 91.0% on GSM8K compared to Claude Haiku 4.5's 88.0%.

Reasoning: In reasoning, Mistral Large 25.12 scores 52.0% on GPQA Diamond compared to Claude Haiku 4.5's 40.0%, while Mistral Large 25.12 scores 28.0% on ARC-AGI compared to Claude Haiku 4.5's 18.0%, while Claude Haiku 4.5 scores 10.3 on AA Agentic Index compared to Mistral Large 25.12's 2.4.

Context: In context, Mistral Large 25.12 scores 262K on Context Length compared to Claude Haiku 4.5's 200K.

Pricing Comparison

Claude Haiku 4.5 costs $1.0/1M input tokens and $5.0/1M 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 Haiku 4.5 generates output at 180 tok/s compared to Mistral Large 25.12's 70 tok/s, and the time to first token is 120 ms for Claude Haiku 4.5 versus 380 ms for Mistral Large 25.12. Claude Haiku 4.5 delivers faster throughput.

Verdict

For developers prioritizing speed, Claude Haiku 4.5 has the edge. For those who value coding and general intelligence and math and affordability, Mistral Large 25.12 is the stronger choice.

Claude Haiku 4.5 vs Mistral Large 25.12 — FAQ

Which is better, Claude Haiku 4.5 or Mistral Large 25.12?

Mistral Large 25.12 wins on more benchmarks overall (13 vs 5). However, the best choice depends on your specific needs — each model excels in different areas.

How does Claude Haiku 4.5 compare to Mistral Large 25.12 for coding?

Mistral Large 25.12 is better for coding, scoring 42.0% on SWE-bench Verified compared to 30.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Claude Haiku 4.5 cheaper than Mistral Large 25.12?

Yes, Mistral Large 25.12 is cheaper. Claude Haiku 4.5 costs $1.0/1M input and $5.0/1M output tokens. Mistral Large 25.12 costs $0.50/1M input and $1.5/1M output tokens.

Which is faster, Claude Haiku 4.5 or Mistral Large 25.12?

Claude Haiku 4.5 is faster, generating output at 180 tok/s compared to 70 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude Haiku 4.5 vs Mistral Large 25.12 comparison cover?

This comparison covers 18 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.