Mistral Medium 3.1 vs o3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
o3 by OpenAI wins on 10 of 15 benchmarks against Mistral Medium 3.1 by Mistral, 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, o3 scores 1380 on Chatbot Arena ELO compared to Mistral Medium 3.1's 1250, while o3 scores 84.0% on MMLU-Pro compared to Mistral Medium 3.1's 66.0%.
Coding: In coding, o3 scores 90.0% on HumanEval+ compared to Mistral Medium 3.1's 77.0%, while o3 scores 69.1% on SWE-bench Verified compared to Mistral Medium 3.1's 28.0%, while o3 scores 70.0% on LiveCodeBench compared to Mistral Medium 3.1's 34.0%.
Math: In math, o3 scores 96.0% on MATH compared to Mistral Medium 3.1's 68.0%, while o3 scores 98.5% on GSM8K compared to Mistral Medium 3.1's 86.0%.
Reasoning: In reasoning, o3 scores 83.3% on GPQA Diamond compared to Mistral Medium 3.1's 40.0%, while o3 scores 75.7% on ARC-AGI compared to Mistral Medium 3.1's 18.0%.
Context: In context, o3 scores 200K on Context Length compared to Mistral Medium 3.1's 131K.
Pricing Comparison
Mistral Medium 3.1 costs $0.40/1M input tokens and $2.0/1M output tokens, while o3 costs $2.0/1M input and $8.0/1M output. Mistral Medium 3.1 is the more affordable option for API usage.
Speed Comparison
Mistral Medium 3.1 generates output at 110 tok/s compared to o3's 40 tok/s, and the time to first token is 200 ms for Mistral Medium 3.1 versus 800 ms for o3. Mistral Medium 3.1 delivers faster throughput.
Verdict
For developers prioritizing affordability and speed, Mistral Medium 3.1 has the edge. For those who value coding and general intelligence and math, o3 is the stronger choice.
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Mistral Medium 3.1 vs o3 — FAQ
Which is better, Mistral Medium 3.1 or o3?
o3 wins on more benchmarks overall (10 vs 5). However, the best choice depends on your specific needs — each model excels in different areas.
How does Mistral Medium 3.1 compare to o3 for coding?
o3 is better for coding, scoring 69.1% on SWE-bench Verified compared to 28.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Mistral Medium 3.1 cheaper than o3?
Yes, Mistral Medium 3.1 is cheaper. Mistral Medium 3.1 costs $0.40/1M input and $2.0/1M output tokens. o3 costs $2.0/1M input and $8.0/1M output tokens.
Which is faster, Mistral Medium 3.1 or o3?
Mistral Medium 3.1 is faster, generating output at 110 tok/s compared to 40 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Mistral Medium 3.1 vs o3 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.