Model comparison
Composer 2 Fast vs Mistral Small 4 (Reasoning)
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Evidence parity. Composer 2 Fast and Mistral Small 4 (Reasoning) share 0 comparable benchmark results. 0 of 8 categories are comparable. 1 result is unique to Composer 2 Fast; 16 to Mistral Small 4 (Reasoning).
Updated July 28, 2026- Shared results
- 0
- Composer 2 Fast only
- 1
- Mistral Small 4 (Reasoning) only
- 16
- Comparable categories
- 0 / 8
Benchmark data for Composer 2 Fast and Mistral Small 4 (Reasoning) is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 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.
Mistral Small 4 (Reasoning) has the larger context window at 256K, compared with 200K for Composer 2 Fast.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Composer 2 Fast | Mistral Small 4 (Reasoning) | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Composer 2 FastNot available | Mistral Small 4 (Reasoning)$0.15 input / $0.6 output | A complete price comparison is not available. |
| Generation speedtokens per second | Composer 2 FastNot available | Mistral Small 4 (Reasoning)Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Composer 2 FastNot available | Mistral Small 4 (Reasoning)Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Composer 2 Fast200K | Mistral Small 4 (Reasoning)256K | Mistral Small 4 (Reasoning) lists the larger context window. |
Benchmark Deep Dive
Agentic4 benchmarks
Coding3 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Composer 2 Fast | Mistral Small 4 (Reasoning) | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | — | 19.6% | Not comparable |
| AA-GPQA DiamondSource | — | 76.9% | Not comparable |
| AA-HLESource | — | 9.5% | Not comparable |
| AA-Omniscience IndexSource | — | -29.9% | Not comparable |
| AA-Omniscience AccuracySource | — | 22.1% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 66.8% | Not comparable |
Multimodal1 benchmarks
| Benchmark | Composer 2 Fast | Mistral Small 4 (Reasoning) | Result |
|---|---|---|---|
| AA-MMMU-ProSource | — | 56.8% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Composer 2 Fast | Mistral Small 4 (Reasoning) | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 48.2% | Not comparable |
Frequently Asked Questions (3)
Can I compare Composer 2 Fast and Mistral Small 4 (Reasoning) 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 Composer 2 Fast and Mistral Small 4 (Reasoning) today?
Mistral Small 4 (Reasoning): $0.15 input / $0.60 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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