Model comparison
Mistral Medium 3 vs o3
Head-to-head evidence from 14 shared benchmark results across 6 categories. Overall scores shown here use BenchLM's provisional ranking lane.
Evidence parity. Mistral Medium 3 and o3 share 14 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to Mistral Medium 3; 3 to o3.
Updated July 14, 2026- Shared results
- 14
- Mistral Medium 3 only
- 0
- o3 only
- 3
- Comparable categories
- 0 / 8
Benchmark data for Mistral Medium 3 and o3 is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 14 shared benchmark results across 6 evidence categories; 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 is priced at $2.00 input / $8.00 output per 1M tokens, versus $0.40 input / $2.00 output per 1M tokens for Mistral Medium 3. o3 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.
| Category | Mistral Medium 3 | Δ | o3 |
|---|---|---|---|
| Math | Mistral Medium 3Not measured | MarginNo overlap | o314.5 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Mistral Medium 3 | o3 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Mistral Medium 3$0.4 input / $2 output | o3$2 input / $8 output | Mistral Medium 3 has the lower combined listed price. |
| Generation speedtokens per second | Mistral Medium 357 tok/s | o3118 tok/s | o3 has the higher measured throughput. |
| First-answer latencyseconds to first token | Mistral Medium 31.20 s | o35.38 s | Mistral Medium 3 reaches the first token sooner. |
| Context windowmaximum listed tokens | Mistral Medium 3128K | o3200K | o3 lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Mistral Medium 3 | o3 | Result |
|---|---|---|---|
| Tau2-TelecomSource | 24.3% | 80.7% | o3 leads |
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Mistral Medium 3 | o3 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 12.5% | 30.4% | o3 leads |
| AA-GPQA DiamondSource | 57.8% | 82.7% | o3 leads |
| AA-HLESource | 4.3% | 20.0% | o3 leads |
| AA-Omniscience IndexSource | -31.5% | -15.3% | o3 leads |
| AA-Omniscience AccuracySource | 18.3% | 38.4% | o3 leads |
| AA-Omniscience Hallucination RateSource | 60.9% | 87.1% | Mistral Medium 3 leads |
Math3 benchmarks
Multimodal2 benchmarks
Inst. Following1 benchmarks
| Benchmark | Mistral Medium 3 | o3 | Result |
|---|---|---|---|
| AA-IFBenchSource | 39.3% | 71.4% | o3 leads |
Frequently Asked Questions (3)
Can I compare Mistral Medium 3 and o3 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 today?
Mistral Medium 3: $0.40 input / $2.00 output per 1M tokens o3: $2.00 input / $8.00 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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