Model comparison
Grok 4.1 Fast vs Mistral Small 4
Head-to-head evidence from 12 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Grok 4.1 Fast #107 (Supported); Mistral Small 4 #140 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok 4.1 Fast and Mistral Small 4 share 12 comparable benchmark results. 0 of 8 categories are comparable. 1 result is unique to Grok 4.1 Fast; 4 to Mistral Small 4.
Updated July 23, 2026- Shared results
- 12
- Grok 4.1 Fast only
- 1
- Mistral Small 4 only
- 4
- Comparable categories
- 0 / 8
Benchmark data for Grok 4.1 Fast and Mistral Small 4 is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 12 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.
Mistral Small 4 is priced at $0.15 input / $0.60 output per 1M tokens, versus $0.20 input / $0.50 output per 1M tokens for Grok 4.1 Fast. Grok 4.1 Fast has the larger context window at 1M, compared with 256K for Mistral Small 4.
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 | Grok 4.1 Fast | Mistral Small 4 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok 4.1 Fast$0.2 input / $0.5 output | Mistral Small 4$0.15 input / $0.6 output | Grok 4.1 Fast has the lower combined listed price. |
| Generation speedtokens per second | Grok 4.1 Fast138 tok/s | Mistral Small 4175 tok/s | Mistral Small 4 has the higher measured throughput. |
| First-answer latencyseconds to first token | Grok 4.1 Fast0.54 s | Mistral Small 40.64 s | Grok 4.1 Fast reaches the first token sooner. |
| Context windowmaximum listed tokens | Grok 4.1 Fast1M | Mistral Small 4256K | Grok 4.1 Fast lists the larger context window. |
Benchmark Deep Dive
Agentic5 benchmarks
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Grok 4.1 Fast | Mistral Small 4 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 16.9% | 19.6% | Mistral Small 4 leads |
| AA-GPQA DiamondSource | 63.7% | 76.9% | Mistral Small 4 leads |
| AA-HLESource | 5.0% | 9.5% | Mistral Small 4 leads |
| AA-Omniscience IndexSource | -50.9% | -29.9% | Mistral Small 4 leads |
| AA-Omniscience AccuracySource | 17.0% | 22.1% | Mistral Small 4 leads |
| AA-Omniscience Hallucination RateSource | 81.8% | 66.8% | Mistral Small 4 leads |
Multimodal1 benchmarks
| Benchmark | Grok 4.1 Fast | Mistral Small 4 | Result |
|---|---|---|---|
| AA-MMMU-ProSource | 48.4% | 56.8% | Mistral Small 4 leads |
Inst. Following1 benchmarks
| Benchmark | Grok 4.1 Fast | Mistral Small 4 | Result |
|---|---|---|---|
| AA-IFBenchSource | 36.5% | 48.2% | Mistral Small 4 leads |
Frequently Asked Questions (3)
Can I compare Grok 4.1 Fast and Mistral Small 4 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 Grok 4.1 Fast and Mistral Small 4 today?
Grok 4.1 Fast: $0.20 input / $0.50 output per 1M tokens Mistral Small 4: $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.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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