Model comparison
Gemini 3.1 Pro Preview vs Longcat Flash Chat
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.5 on the Noometry Index.
Last verified . 18 shared benchmarks.
GoogleSummary
- They share 18 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 7 categories and Longcat Flash Chat in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 18.3.
- The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.1 Pro Preview and 17.7% for Longcat Flash Chat.
- Longcat Flash Chat has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.1 Pro Preview | Longcat Flash Chat | |
|---|---|---|
| Provider | Meituan | |
| Noometry Index | 56.7 | 41.5 |
| Released | 2026-02-19 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $12 | — |
| Results tracked | 71 | 19 |
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Category by category
Coding Too close to call
Gemini 3.1 Pro Preview: 42.7 (#88), Longcat Flash Chat: 42.9 (#85)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1483 | 1471 |
| SWE-bench Verified | 75.6% | — |
| DeepSWE | 11.7% | — |
| LMArena WebDev | 1446 | — |
| SciCode | 58.9% | — |
| GSO | 22.6% | — |
| WeirdML | 72.1% | — |
| MirrorCode | 8.9% | — |
| ALE-Bench | 1,161 | — |
| AlgoTune | 2.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.1 Pro Preview: 37.7 (#33), Longcat Flash Chat: —
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| Terminal-Bench | 80.2% | — |
| APEX-Agents | 35.3% | — |
| 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 (#9), Longcat Flash Chat: 18.3 (#267)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| NYT Connections (extended) | 97.4% | 17.7% |
| LMArena Hard Prompts | 1484 | 1440 |
| ARC-AGI-2 | 77.1% | — |
| SimpleBench | 79.6% | — |
| Kagi LLM Benchmark | — | 43.9% |
| 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% | — |
| DTBench | 97.1% | — |
| LMCA | 53.8% | — |
| Epoch Capabilities Index | 154.92 | — |
| ForecastBench | 59 | — |
Math Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 61.8 (#28), Longcat Flash Chat: 36.6 (#107)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1485 | 1441 |
| 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% | — |
| 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), Longcat Flash Chat: 40.0 (#111)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1484 | 1454 |
| GPQA Diamond | 94.4% | — |
| Humanity's Last Exam | 46.4% | — |
| SimpleQA Verified | 73.5% | — |
| Vectara Hallucination Rate | 10.4% | — |
Multimodal Not comparable
Gemini 3.1 Pro Preview: 38.1 (#60), Longcat Flash Chat: —
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| 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: 57.1 (#11), Longcat Flash Chat: 52.1 (#95)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1475 | 1404 |
| LMArena Chinese | 1528 | 1465 |
| LMArena French | 1488 | 1457 |
| LMArena German | 1491 | 1409 |
| LMArena Japanese | 1494 | 1373 |
| LMArena Korean | 1458 | 1372 |
| LMArena Russian | 1496 | 1396 |
| LMArena Spanish | 1480 | 1445 |
Instruction Following Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 77.1 (#31), Longcat Flash Chat: 74.6 (#92)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1465 | 1411 |
Long Context Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 47.3 (#17), Longcat Flash Chat: 43.5 (#89)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1482 | 1425 |
| CL-bench | 20.8% | — |
| CL-bench Life | 16.9% | — |
Writing & Preference Gemini 3.1 Pro Preview leads
Gemini 3.1 Pro Preview: 66.3 (#36), Longcat Flash Chat: 61.2 (#88)
| Benchmark | Gemini 3.1 Pro Preview | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1480 | 1427 |
| LMArena Creative Writing | 1482 | 1388 |
| LMArena Multi-Turn | 1486 | 1418 |
| EQ-Bench Creative Writing | 1491 | — |
| EQ-Bench 4 | 1142 | — |
Frequently asked questions
Is Gemini 3.1 Pro Preview better than Longcat Flash Chat?
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.5 on the Noometry Index.
Is Gemini 3.1 Pro Preview or Longcat Flash Chat better for coding?
They score almost the same on coding (42.7 vs 42.9); test both on your own repository before choosing.
How many benchmarks do Gemini 3.1 Pro Preview and Longcat Flash Chat share?
18 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Longcat Flash Chat has 19.