Model comparison
Mistral Large 3 vs o3-pro
Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Mistral Large 3 #113 (Supported); o3-pro #127 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Mistral Large 3 and o3-pro share 2 comparable benchmark results. 0 of 8 categories are comparable. 14 results are unique to Mistral Large 3; 0 to o3-pro.
Updated July 20, 2026- Shared results
- 2
- Mistral Large 3 only
- 14
- o3-pro only
- 0
- Comparable categories
- 0 / 8
Benchmark data for Mistral Large 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 $0.50 input / $1.50 output per 1M tokens for Mistral Large 3. o3-pro has the larger context window at 200K, compared with 128K for Mistral Large 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 Large 3 | o3-pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Mistral Large 3$0.5 input / $1.5 output | o3-pro$20 input / $80 output | Mistral Large 3 has the lower combined listed price. |
| Generation speedtokens per second | Mistral Large 348 tok/s | o3-pro27 tok/s | Mistral Large 3 has the higher measured throughput. |
| First-answer latencyseconds to first token | Mistral Large 31.04 s | o3-pro84.93 s | Mistral Large 3 reaches the first token sooner. |
| Context windowmaximum listed tokens | Mistral Large 3128K | o3-pro200K | o3-pro lists the larger context window. |
Benchmark Deep Dive
Agentic4 benchmarks
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Mistral Large 3 | o3-pro | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 15.9% | 32.5% | o3-pro leads |
| AA-GPQA DiamondSource | 68.0% | 84.5% | o3-pro leads |
| AA-HLESource | 4.1% | — | Not comparable |
| AA-Omniscience IndexSource | -39.4% | — | Not comparable |
| AA-Omniscience AccuracySource | 24.1% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 83.7% | — | Not comparable |
Multimodal1 benchmarks
| Benchmark | Mistral Large 3 | o3-pro | Result |
|---|---|---|---|
| AA-MMMU-ProSource | 55.7% | — | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Mistral Large 3 | o3-pro | Result |
|---|---|---|---|
| AA-IFBenchSource | 36.2% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Mistral Large 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 Large 3 and o3-pro today?
Mistral Large 3: $0.50 input / $1.50 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.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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