Model comparison
Grok 4.5 vs Ministral 3B
Grok 4.5 is the stronger model overall, scoring 55.0 to 25.6 on the Noometry Index. Ministral 3B costs 75× less per token, which makes it the better buy when Grok 4.5's lead doesn't matter for your workload.
Last verified . 4 shared benchmarks.
Mistral AISummary
- They share 4 benchmarks with published results for both. Grok 4.5 scores higher in 3 categories and Ministral 3B in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 4.5 leads 62.3 to 10.4.
- The biggest single-benchmark swing is GPQA Diamond: 93.4% for Grok 4.5 and 25.3% for Ministral 3B.
- Ministral 3B is cheaper at $0.04 / $0.04 per million input/output tokens, against $2 / $6 for Grok 4.5.
- Grok 4.5 accepts more context: 500K tokens versus 128K.
- Ministral 3B has downloadable open weights; the other is API-only.
Side by side
| Grok 4.5 | Ministral 3B | |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 55.0 | 25.6 |
| Released | 2026-07-08 | 2024-10-01 |
| Weights | Proprietary | Open |
| Context window | 500K | 128K |
| Max output | 500K | 128K |
| Input $ / M tokens | $2 | $0.04 |
| Output $ / M tokens | $6 | $0.04 |
| Results tracked | 52 | 6 |
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Category by category
Coding Not comparable
Grok 4.5: 51.7 (#34), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| DeepSWE | 53.8% | — |
| FrontierCode | 42.4% | — |
| LMArena WebDev | 1552 | — |
| SciCode | 54.1% | — |
| WeirdML | 46.4% | — |
| LMArena Coding | 1473 | — |
| ALE-Bench | 1,309 | — |
Agentic & Tool Use Not comparable
Grok 4.5: 44.4 (#15), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| APEX-Agents | 56.2% | — |
| τ²-bench Banking | 47.9% | — |
| PostTrainBench | 23.4% | — |
| GBAEval | 65.4% | — |
| GDP.pdf | 14% | — |
| LMArena Search | 1213 | — |
| Vending-Bench 2 | 3,887 | — |
Reasoning Grok 4.5 leads
Grok 4.5: 56.0 (#23), Ministral 3B: 17.7 (#278)
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| DTBench | 96.5% | 51.7% |
| LMCA | 45.2% | 5.5% |
| Epoch Capabilities Index | 154.02 | 118.08 |
| ARC-AGI-2 | 52.6% | — |
| SimpleBench | 70% | — |
| Kagi LLM Benchmark | 83.5% | — |
| NYT Connections (extended) | 79.9% | — |
| ARC-AGI-1 | 87.2% | — |
| CritPt | 15.4% | — |
| Chess Puzzles | 36% | — |
| LMArena Hard Prompts | 1462 | — |
| Surface Evolver Bench | 74.4% | — |
Math Grok 4.5 leads
Grok 4.5: 60.7 (#29), Ministral 3B: 24.5 (#257)
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 57.2% | — |
| FrontierMath Tier 4 | 24.4% | — |
| OTIS Mock AIME 2024-2025 | 97.8% | — |
| ProofBench | 31% | — |
| LMArena Math | 1457 | — |
| MATH Level 5 | — | 14.4% |
Knowledge Grok 4.5 leads
Grok 4.5: 62.3 (#21), Ministral 3B: 10.4 (#297)
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| GPQA Diamond | 93.4% | 25.3% |
| SimpleQA Verified | 48.3% | — |
| Vectara Hallucination Rate | — | 7.3% |
| LMArena Expert | 1466 | — |
Multimodal Not comparable
Grok 4.5: 37.8 (#63), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| LMArena Vision | 1287 | — |
| Blueprint-Bench 2 | 27.3% | — |
| Furniture Assembly | 22.5% | — |
| LMArena Document | 1452 | — |
Multilingual Not comparable
Grok 4.5: 54.5 (#43), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| LMArena Non-English | 1439 | — |
| LMArena Chinese | 1497 | — |
| LMArena French | 1458 | — |
| LMArena German | 1448 | — |
| LMArena Japanese | 1425 | — |
| LMArena Korean | 1402 | — |
| LMArena Russian | 1447 | — |
| LMArena Spanish | 1452 | — |
Instruction Following Not comparable
Grok 4.5: 76.3 (#45), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| LMArena Instruction Following | 1446 | — |
Long Context Not comparable
Grok 4.5: 44.8 (#54), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| LMArena Longer Query | 1463 | — |
Writing & Preference Not comparable
Grok 4.5: 65.9 (#40), Ministral 3B: —
| Benchmark | Grok 4.5 | Ministral 3B |
|---|---|---|
| LMArena Text | 1448 | — |
| LMArena Creative Writing | 1442 | — |
| EQ-Bench Creative Writing | 1579 | — |
| LMArena Multi-Turn | 1457 | — |
Frequently asked questions
Is Grok 4.5 better than Ministral 3B?
Grok 4.5 is the stronger model overall, scoring 55.0 to 25.6 on the Noometry Index. Ministral 3B costs 75× less per token, which makes it the better buy when Grok 4.5's lead doesn't matter for your workload.
Which is cheaper, Grok 4.5 or Ministral 3B?
Ministral 3B is cheaper. It lists at $0.04 per million input tokens and $0.04 per million output tokens; Grok 4.5 lists at $2 and $6.
Which has the bigger context window?
Grok 4.5 does, with 500K tokens against 128K.
How many benchmarks do Grok 4.5 and Ministral 3B share?
4 benchmarks have published results for both models. Grok 4.5 has 52 scored results on Noometry and Ministral 3B has 6.