Model comparison
Gemini 3.1 Pro Preview vs Ministral 8B
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 28.2 on the Noometry Index. Ministral 8B costs 30× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.
Last verified . 15 shared benchmarks.
Summary
- They share 15 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 9 categories and Ministral 8B in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3.1 Pro Preview leads 71.8 to 12.6.
- The biggest single-benchmark swing is GPQA Diamond: 94.4% for Gemini 3.1 Pro Preview and 27.1% for Ministral 8B.
- Ministral 8B is cheaper at $0.15 / $0.15 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
- Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 262K.
- Ministral 8B has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.1 Pro Preview | Ministral 8B | |
|---|---|---|
| Provider | Mistral AI | |
| Noometry Index | 56.7 | 28.2 |
| Released | 2026-02-19 | 2024-10-01 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 262K |
| Max output | 66K | 262K |
| Input $ / M tokens | $2 | $0.15 |
| Output $ / M tokens | $12 | $0.15 |
| Results tracked | 71 | 17 |
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Category by category
Coding Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 42.5 (#99), Ministral 8B: 35.0 (#230)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Coding | 1484 | 1202 |
| SWE-bench Verified | 75.6% | — |
| DeepSWE | 11.7% | — |
| LMArena WebDev | 1447 | — |
| SciCode | 58.9% | — |
| GSO | 22.6% | — |
| WeirdML | 72.1% | — |
| MirrorCode | 8.9% | — |
| ALE-Bench | 1,161 | — |
| AlgoTune | 2.02 | — |
Agentic & Tool Use Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 37.7 (#34), Ministral 8B: 16.4 (#148)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| Terminal-Bench | 80.2% | — |
| APEX-Agents | 35.3% | — |
| Berkeley Function Calling Leaderboard | — | 11.1% |
| τ²-bench Banking | 26% | — |
| DeepResearch Bench | 47.8% | — |
| PostTrainBench | 22% | — |
| BALROG | 57% | — |
| ExploitBench | 26.1% | — |
| GBAEval | 0.8% | — |
| GDP.pdf | 17% | — |
| LMArena Search | 1211 | — |
| METR Time Horizons | 77% | — |
| Vending-Bench 2 | 3,774 | — |
Reasoning Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.7 (#12), Ministral 8B: 18.4 (#281)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Hard Prompts | 1485 | 1191 |
| DTBench | 97.1% | 45.7% |
| ARC-AGI-2 | 77.1% | — |
| SimpleBench | 79.6% | — |
| NYT Connections (extended) | 97.4% | — |
| ARC-AGI-1 | 98% | — |
| CritPt | 17.7% | — |
| Chess Puzzles | 55% | — |
| EnigmaEval | 36.8% | — |
| Thematic Generalization | 79.4% | — |
| EBR-Bench | 14.3% | — |
| Mystery Game Puzzles | 34% | — |
| LMCA | 53.8% | — |
| Epoch Capabilities Index | 154.77 | — |
| ForecastBench | 59 | — |
Math Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 62.1 (#34), Ministral 8B: 25.7 (#267)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Math | 1485 | 1188 |
| FrontierMath (Tiers 1-3) | 59.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 86.5% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 26% | — |
| MATH Level 5 | — | 14.9% |
| FrontierMath (Feb 2025 set) | 36.9% | — |
| FrontierMath Tier 4 (v1) | 16.7% | — |
Knowledge Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 71.8 (#3), Ministral 8B: 12.6 (#297)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| GPQA Diamond | 94.4% | 27.1% |
| Vectara Hallucination Rate | 10.4% | 7.4% |
| LMArena Expert | 1485 | 1170 |
| Humanity's Last Exam | 46.4% | — |
| SimpleQA Verified | 73.5% | — |
Multimodal Not comparable
Gemini 3.1 Pro Preview: 37.9 (#69), Ministral 8B: —
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Vision | 1296 | — |
| Blueprint-Bench 2 | 26.5% | — |
| Furniture Assembly | 26.7% | — |
| LMArena Document | 1444 | — |
Multilingual Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 57.0 (#12), Ministral 8B: 35.1 (#247)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Non-English | 1477 | 1165 |
| LMArena Chinese | 1529 | 1193 |
| LMArena Russian | 1498 | 1195 |
| LMArena French | 1487 | — |
| LMArena German | 1491 | — |
| LMArena Japanese | 1493 | — |
| LMArena Korean | 1455 | — |
| LMArena Spanish | 1479 | — |
Instruction Following Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 77.0 (#32), Ministral 8B: 60.5 (#250)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Instruction Following | 1466 | 1161 |
Long Context Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 47.4 (#18), Ministral 8B: 36.7 (#227)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Longer Query | 1483 | 1212 |
| CL-bench | 20.8% | — |
| CL-bench Life | 16.9% | — |
Writing & Preference Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 66.1 (#37), Ministral 8B: 39.6 (#246)
| Benchmark | Gemini 3.1 Pro Preview | Ministral 8B |
|---|---|---|
| LMArena Text | 1481 | 1191 |
| LMArena Creative Writing | 1482 | 1175 |
| LMArena Multi-Turn | 1488 | 1166 |
| EQ-Bench Creative Writing | 1491 | — |
| EQ-Bench 4 | 1142 | — |
Frequently asked questions
Is Gemini 3.1 Pro Preview better than Ministral 8B?
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 28.2 on the Noometry Index. Ministral 8B costs 30× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.
Which is cheaper, Gemini 3.1 Pro Preview or Ministral 8B?
Ministral 8B is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; Gemini 3.1 Pro Preview lists at $2 and $12.
Is Gemini 3.1 Pro Preview or Ministral 8B better for coding?
Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 35.0 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.1 Pro Preview does, with 1.05M tokens against 262K.
How many benchmarks do Gemini 3.1 Pro Preview and Ministral 8B share?
15 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Ministral 8B has 17.