Grok 4 Fast vs Mistral Large 25.12

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

Grok 4 Fast by xAI wins on 12 of 14 benchmarks against Mistral Large 25.12 by Mistral, which leads on 2. 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 Grok 4 Fast's 1370, while Grok 4 Fast scores 80.0% on MMLU-Pro compared to Mistral Large 25.12's 73.0%.

Coding: In coding, Grok 4 Fast scores 85.0% on HumanEval+ compared to Mistral Large 25.12's 82.0%, while Grok 4 Fast scores 48.0% on SWE-bench Verified compared to Mistral Large 25.12's 42.0%, while Grok 4 Fast scores 52.0% on LiveCodeBench compared to Mistral Large 25.12's 44.0%.

Math: In math, Grok 4 Fast scores 84.0% on MATH compared to Mistral Large 25.12's 78.0%, while Grok 4 Fast scores 94.0% on GSM8K compared to Mistral Large 25.12's 91.0%.

Reasoning: In reasoning, Grok 4 Fast scores 60.0% on GPQA Diamond compared to Mistral Large 25.12's 52.0%, while Grok 4 Fast scores 38.0% 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 Grok 4 Fast's 256K.

Pricing Comparison

Grok 4 Fast costs $0.20/1M input tokens and $0.50/1M output tokens, while Mistral Large 25.12 costs $0.50/1M input and $1.5/1M output. Grok 4 Fast is the more affordable option for API usage.

Speed Comparison

Grok 4 Fast generates output at 110 tok/s compared to Mistral Large 25.12's 70 tok/s, and the time to first token is 220 ms for Grok 4 Fast versus 380 ms for Mistral Large 25.12. Grok 4 Fast delivers faster throughput.

Verdict

For developers prioritizing coding and math and affordability and speed, Grok 4 Fast has the edge. For those who value general intelligence, Mistral Large 25.12 is the stronger choice.

Grok 4 Fast vs Mistral Large 25.12 — FAQ

Which is better, Grok 4 Fast or Mistral Large 25.12?

Grok 4 Fast wins on more benchmarks overall (12 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.

How does Grok 4 Fast compare to Mistral Large 25.12 for coding?

Grok 4 Fast is better for coding, scoring 48.0% on SWE-bench Verified compared to 42.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Grok 4 Fast cheaper than Mistral Large 25.12?

Yes, Grok 4 Fast is cheaper. Grok 4 Fast costs $0.20/1M input and $0.50/1M output tokens. Mistral Large 25.12 costs $0.50/1M input and $1.5/1M output tokens.

Which is faster, Grok 4 Fast or Mistral Large 25.12?

Grok 4 Fast is faster, generating output at 110 tok/s compared to 70 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Grok 4 Fast vs Mistral Large 25.12 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.