Model comparison
Mistral Medium 3 vs o3-pro
Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use BenchLM's provisional ranking lane.
Evidence parity. Mistral Medium 3 and o3-pro share 2 comparable benchmark results. 0 of 8 categories are comparable. 12 results are unique to Mistral Medium 3; 0 to o3-pro.
Updated July 14, 2026- Shared results
- 2
- Mistral Medium 3 only
- 12
- o3-pro only
- 0
- Comparable categories
- 0 / 8
Benchmark data for Mistral Medium 3 and o3-pro is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 1 evidence category; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
o3-pro is priced at $20.00 input / $80.00 output per 1M tokens, versus $0.40 input / $2.00 output per 1M tokens for Mistral Medium 3. o3-pro has the larger context window at 200K, compared with 128K for Mistral Medium 3.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Mistral Medium 3 | o3-pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Mistral Medium 3$0.4 input / $2 output | o3-pro$20 input / $80 output | Mistral Medium 3 has the lower combined listed price. |
| Generation speedtokens per second | Mistral Medium 357 tok/s | o3-pro27 tok/s | Mistral Medium 3 has the higher measured throughput. |
| First-answer latencyseconds to first token | Mistral Medium 31.20 s | o3-pro84.93 s | Mistral Medium 3 reaches the first token sooner. |
| Context windowmaximum listed tokens | Mistral Medium 3128K | o3-pro200K | o3-pro lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Mistral Medium 3 | o3-pro | Result |
|---|---|---|---|
| Tau2-TelecomSource | 24.3% | — | Not comparable |
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Mistral Medium 3 | o3-pro | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 12.5% | 32.5% | o3-pro leads |
| AA-GPQA DiamondSource | 57.8% | 84.5% | o3-pro leads |
| AA-HLESource | 4.3% | — | Not comparable |
| AA-Omniscience IndexSource | -31.5% | — | Not comparable |
| AA-Omniscience AccuracySource | 18.3% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 60.9% | — | Not comparable |
Multimodal2 benchmarks
Inst. Following1 benchmarks
| Benchmark | Mistral Medium 3 | o3-pro | Result |
|---|---|---|---|
| AA-IFBenchSource | 39.3% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Mistral Medium 3 and o3-pro on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Mistral Medium 3 and o3-pro today?
Mistral Medium 3: $0.40 input / $2.00 output per 1M tokens o3-pro: $20.00 input / $80.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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