Codestral vs Gemini 3.1 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 10 of 14 benchmarks against Codestral by Mistral, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Gemini 3.1 Pro scores 1501 on Chatbot Arena ELO compared to Codestral's 1260, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to Codestral's 68.0%.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to Codestral's 86.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to Codestral's 40.0%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to Codestral's 48.0%.
Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to Codestral's 72.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to Codestral's 88.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to Codestral's 44.0%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to Codestral's 24.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to Codestral's 262K.
Pricing Comparison
Codestral costs $0.30/1M input tokens and $0.90/1M output tokens, while Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output. Codestral is the more affordable option for API usage.
Speed Comparison
Codestral generates output at 90 tok/s compared to Gemini 3.1 Pro's 65 tok/s, and the time to first token is 280 ms for Codestral versus 420 ms for Gemini 3.1 Pro. Codestral delivers faster throughput.
Verdict
For developers prioritizing affordability and speed, Codestral has the edge. For those who value coding and general intelligence and math, Gemini 3.1 Pro is the stronger choice.
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Codestral vs Gemini 3.1 Pro — FAQ
Which is better, Codestral or Gemini 3.1 Pro?
Gemini 3.1 Pro 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 Codestral compare to Gemini 3.1 Pro for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 40.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Codestral cheaper than Gemini 3.1 Pro?
Yes, Codestral is cheaper. Codestral costs $0.30/1M input and $0.90/1M output tokens. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, Codestral or Gemini 3.1 Pro?
Codestral is faster, generating output at 90 tok/s compared to 65 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Codestral vs Gemini 3.1 Pro comparison cover?
This comparison covers 14 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, Time to First Token, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.