Model comparison
Gemini 3.5 Flash vs Longcat Flash Chat
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 42.1 on the Noometry Index.
Last verified . 18 shared benchmarks.
GoogleSummary
- They share 18 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 8 categories and Longcat Flash Chat in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 19.0.
- The biggest single-benchmark swing is NYT Connections (extended): 92.6% for Gemini 3.5 Flash and 17.7% for Longcat Flash Chat.
- Longcat Flash Chat has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.5 Flash | Longcat Flash Chat | |
|---|---|---|
| Provider | Meituan | |
| Noometry Index | 54.2 | 42.1 |
| Released | 2026-05-19 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.50 | — |
| Output $ / M tokens | $9 | — |
| Results tracked | 54 | 19 |
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Category by category
Coding Gemini 3.5 Flash leads
Gemini 3.5 Flash: 49.4 (#49), Longcat Flash Chat: 43.5 (#87)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1492 | 1471 |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| LMArena WebDev | 1499 | — |
| SciCode | 53.1% | — |
| WeirdML | 62.6% | — |
| ALE-Bench | 911.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.5 Flash: 24.7 (#114), Longcat Flash Chat: —
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| APEX-Agents | 27.5% | — |
| GBAEval | 6.7% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |
Reasoning Gemini 3.5 Flash leads
Gemini 3.5 Flash: 62.8 (#18), Longcat Flash Chat: 19.0 (#272)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| NYT Connections (extended) | 92.6% | 17.7% |
| LMArena Hard Prompts | 1488 | 1440 |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 76.7% | — |
| Kagi LLM Benchmark | — | 43.9% |
| ARC-AGI-1 | 92.5% | — |
| CritPt | 13.1% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| EBR-Bench | 4.8% | — |
| Mystery Game Puzzles | 32% | — |
| DTBench | 94.7% | — |
| LMCA | 47.1% | — |
| Surface Evolver Bench | 58.1% | — |
| Epoch Capabilities Index | 154.46 | — |
| ForecastBench | 59 | — |
Math Gemini 3.5 Flash leads
Gemini 3.5 Flash: 60.7 (#36), Longcat Flash Chat: 39.4 (#107)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1504 | 1442 |
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 31% | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Gemini 3.5 Flash leads
Gemini 3.5 Flash: 66.3 (#11), Longcat Flash Chat: 40.6 (#116)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1495 | 1454 |
| GPQA Diamond | 92.8% | — |
| SimpleQA Verified | 66.2% | — |
Multimodal Not comparable
Gemini 3.5 Flash: 45.7 (#15), Longcat Flash Chat: —
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Vision | 1310 | — |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |
Multilingual Gemini 3.5 Flash leads
Gemini 3.5 Flash: 57.0 (#13), Longcat Flash Chat: 51.9 (#101)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1476 | 1404 |
| LMArena Chinese | 1526 | 1465 |
| LMArena French | 1490 | 1456 |
| LMArena German | 1492 | 1408 |
| LMArena Japanese | 1486 | 1373 |
| LMArena Korean | 1451 | 1371 |
| LMArena Russian | 1493 | 1395 |
| LMArena Spanish | 1480 | 1445 |
Instruction Following Gemini 3.5 Flash leads
Gemini 3.5 Flash: 77.0 (#30), Longcat Flash Chat: 74.4 (#96)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1467 | 1411 |
Long Context Gemini 3.5 Flash leads
Gemini 3.5 Flash: 45.4 (#38), Longcat Flash Chat: 43.5 (#93)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1482 | 1425 |
Writing & Preference Gemini 3.5 Flash leads
Gemini 3.5 Flash: 65.5 (#47), Longcat Flash Chat: 61.0 (#91)
| Benchmark | Gemini 3.5 Flash | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1482 | 1427 |
| LMArena Creative Writing | 1470 | 1388 |
| LMArena Multi-Turn | 1481 | 1418 |
| EQ-Bench 4 | 1087 | — |
Frequently asked questions
Is Gemini 3.5 Flash better than Longcat Flash Chat?
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 42.1 on the Noometry Index.
Is Gemini 3.5 Flash or Longcat Flash Chat better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 43.5 in the Noometry coding category.
How many benchmarks do Gemini 3.5 Flash and Longcat Flash Chat share?
18 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Longcat Flash Chat has 19.