Model comparison
Grok 4.1 Fast vs Magistral Medium
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 35.2 on the Noometry Index.
Last verified . 17 shared benchmarks.
Mistral AISummary
- They share 17 benchmarks with published results for both. Grok 4.1 Fast scores higher in 5 categories and Magistral Medium in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 8.6.
- Grok 4.1 Fast is cheaper at $0.20 / $0.50 per million input/output tokens, against $2 / $5 for Magistral Medium.
- Magistral Medium accepts more context: 262K tokens versus 128K.
- Magistral Medium has downloadable open weights; the other is API-only.
Side by side
| Grok 4.1 Fast | Magistral Medium | |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 41.4 | 35.2 |
| Released | 2025-06-27 | 2025-03-17 |
| Weights | Proprietary | Open |
| Context window | 128K | 262K |
| Max output | 30K | 16K |
| Input $ / M tokens | $0.20 | $2 |
| Output $ / M tokens | $0.50 | $5 |
| Results tracked | 32 | 22 |
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Category by category
Coding Magistral Medium leads
Grok 4.1 Fast: 34.1 (#245), Magistral Medium: 39.1 (#161)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Coding | 1411 | 1319 |
| LMArena WebDev | 1242 | — |
| SciCode | — | 39.2% |
| ALE-Bench | 394.93 | — |
Agentic & Tool Use Not comparable
Grok 4.1 Fast: 36.3 (#39), Magistral Medium: —
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |
Reasoning Grok 4.1 Fast leads
Grok 4.1 Fast: 43.4 (#49), Magistral Medium: 8.6 (#348)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1267 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | 56% | — |
| Kagi LLM Benchmark | — | 16.2% |
| NYT Connections (extended) | 87.4% | — |
| ARC-AGI-1 | — | 6.1% |
| CritPt | — | 0.3% |
| DTBench | 87.7% | — |
| ForecastBench | 61 | — |
Math Magistral Medium leads
Grok 4.1 Fast: 31.9 (#221), Magistral Medium: 35.1 (#189)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Math | 1408 | 1250 |
| MathArena Final-Answer Competitions | 60.9% | — |
| ProofBench | 4% | — |
Knowledge Too close to call
Grok 4.1 Fast: 33.1 (#207), Magistral Medium: 33.5 (#202)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Expert | 1399 | 1223 |
| Vectara Hallucination Rate | 17.8% | — |
Multimodal Not comparable
Grok 4.1 Fast: 37.0 (#76), Magistral Medium: —
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Vision | 1201 | — |
Multilingual Grok 4.1 Fast leads
Grok 4.1 Fast: 51.0 (#114), Magistral Medium: 39.6 (#224)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Non-English | 1391 | 1232 |
| LMArena Chinese | 1441 | 1227 |
| LMArena French | 1415 | 1267 |
| LMArena German | 1404 | 1248 |
| LMArena Japanese | 1349 | 1175 |
| LMArena Korean | 1361 | 1125 |
| LMArena Russian | 1387 | 1224 |
| LMArena Spanish | 1413 | 1271 |
Instruction Following Grok 4.1 Fast leads
Grok 4.1 Fast: 72.7 (#133), Magistral Medium: 66.0 (#211)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Instruction Following | 1376 | 1254 |
Long Context Grok 4.1 Fast leads
Grok 4.1 Fast: 42.4 (#126), Magistral Medium: 39.3 (#183)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Longer Query | 1390 | 1295 |
Writing & Preference Grok 4.1 Fast leads
Grok 4.1 Fast: 57.2 (#131), Magistral Medium: 46.3 (#219)
| Benchmark | Grok 4.1 Fast | Magistral Medium |
|---|---|---|
| LMArena Text | 1408 | 1255 |
| LMArena Creative Writing | 1394 | 1245 |
| LMArena Multi-Turn | 1389 | 1275 |
| EQ-Bench Creative Writing | 1327 | — |
Frequently asked questions
Is Grok 4.1 Fast better than Magistral Medium?
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 35.2 on the Noometry Index.
Which is cheaper, Grok 4.1 Fast or Magistral Medium?
Grok 4.1 Fast is cheaper. It lists at $0.20 per million input tokens and $0.50 per million output tokens; Magistral Medium lists at $2 and $5.
Is Grok 4.1 Fast or Magistral Medium better for coding?
Magistral Medium scores higher on coding benchmarks: 39.1 versus 34.1 in the Noometry coding category.
Which has the bigger context window?
Magistral Medium does, with 262K tokens against 128K.
How many benchmarks do Grok 4.1 Fast and Magistral Medium share?
17 benchmarks have published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Magistral Medium has 22.