Model comparison
Gemini 2.0 Flash (Feb 2025) vs Gemini 3.5 Flash
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 35.1 on the Noometry Index.
Last verified . 27 shared benchmarks.
GoogleSummary
- They share 27 benchmarks with published results for both. Gemini 2.0 Flash (Feb 2025) scores higher in 1 category and Gemini 3.5 Flash in 9 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 15.2.
- The biggest single-benchmark swing is ARC-AGI-2: 1.3% for Gemini 2.0 Flash (Feb 2025) and 72.1% for Gemini 3.5 Flash.
Side by side
| Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash | |
|---|---|---|
| Provider | ||
| Noometry Index | 35.1 | 54.2 |
| Released | 2024-12-06 | 2026-05-19 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1.50 |
| Output $ / M tokens | — | $9 |
| Results tracked | 54 | 54 |
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Category by category
Coding Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 28.4 (#315), Gemini 3.5 Flash: 49.4 (#49)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| WeirdML | 25.8% | 62.6% |
| LMArena Coding | 1350 | 1492 |
| SWE-bench Verified | — | 79.3% |
| DeepSWE | — | 37.4% |
| SWE-bench Verified (bash only) | 13.5% | — |
| Aider Polyglot | 38.2% | — |
| LMArena WebDev | — | 1499 |
| SciCode | — | 53.1% |
| BigCodeBench Instruct | 45.9% | — |
| LiveBench Coding | 63.4% | — |
| BigCodeBench Complete | 59.9% | — |
| CadEval | 30% | — |
| ALE-Bench | — | 911.02 |
Agentic & Tool Use Gemini 2.0 Flash (Feb 2025) leads
Gemini 2.0 Flash (Feb 2025): 28.1 (#92), Gemini 3.5 Flash: 24.7 (#114)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| APEX-Agents | — | 27.5% |
| TheAgentCompany | 11.4% | — |
| GBAEval | — | 6.7% |
| GDP.pdf | — | 14% |
| Vending-Bench 2 | — | 5,396 |
Reasoning Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 15.2 (#318), Gemini 3.5 Flash: 62.8 (#18)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| ARC-AGI-2 | 1.3% | 72.1% |
| SimpleBench | 31.1% | 76.7% |
| EnigmaEval | 1.1% | 25.4% |
| LMArena Hard Prompts | 1346 | 1488 |
| DTBench | 63.2% | 94.7% |
| Epoch Capabilities Index | 135.36 | 154.46 |
| Kagi LLM Benchmark | 37.8% | — |
| NYT Connections (extended) | — | 92.6% |
| ARC-AGI-1 | — | 92.5% |
| CritPt | — | 13.1% |
| Chess Puzzles | — | 50% |
| EBR-Bench | — | 4.8% |
| LiveBench Reasoning | 78.2% | — |
| Mystery Game Puzzles | — | 32% |
| LiveBench Data Analysis | 69.4% | — |
| LMCA | — | 47.1% |
| Surface Evolver Bench | — | 58.1% |
| ForecastBench | — | 59 |
| LiveBench | 66.9% | — |
Math Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 37.9 (#146), Gemini 3.5 Flash: 60.7 (#36)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 57.8% | 95.6% |
| LMArena Math | 1352 | 1504 |
| FrontierMath (Feb 2025 set) | 1.7% | 39% |
| FrontierMath (Tiers 1-3) | — | 62.8% |
| FrontierMath Tier 4 | — | 26.8% |
| MathArena Final-Answer Competitions | — | 76.3% |
| ProofBench | — | 31% |
| Omni-MATH | 45.9% | — |
| LiveBench Math | 75.8% | — |
| MATH Level 5 | 82.2% | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 32.0 (#213), Gemini 3.5 Flash: 66.3 (#11)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| GPQA Diamond | 64.1% | 92.8% |
| LMArena Expert | 1339 | 1495 |
| Humanity's Last Exam | 6.6% | — |
| SimpleQA Verified | — | 66.2% |
| MMLU-Pro | 73.7% | — |
| Confabulations | 12.4% | — |
| GPQA (HELM) | 55.6% | — |
| MMLU | 79.7% | — |
Multimodal Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 36.5 (#79), Gemini 3.5 Flash: 45.7 (#15)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| LMArena Vision | 1158 | 1310 |
| GeoBench | 77% | — |
| Blueprint-Bench 2 | — | 33.6% |
| LMArena Document | — | 1463 |
Multilingual Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 47.4 (#149), Gemini 3.5 Flash: 57.0 (#13)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1342 | 1476 |
| LMArena Chinese | 1373 | 1526 |
| LMArena French | 1391 | 1490 |
| LMArena German | 1353 | 1492 |
| LMArena Japanese | 1294 | 1486 |
| LMArena Korean | 1313 | 1451 |
| LMArena Russian | 1351 | 1493 |
| LMArena Spanish | 1363 | 1480 |
Instruction Following Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 74.4 (#97), Gemini 3.5 Flash: 77.0 (#30)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1336 | 1467 |
| LiveBench Instruction Following | 85.8% | — |
| IFEval | 84.1% | — |
Long Context Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 38.1 (#203), Gemini 3.5 Flash: 45.4 (#38)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1344 | 1482 |
| Fiction.LiveBench | 61.1% | — |
Writing & Preference Gemini 3.5 Flash leads
Gemini 2.0 Flash (Feb 2025): 49.5 (#190), Gemini 3.5 Flash: 65.5 (#47)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Gemini 3.5 Flash |
|---|---|---|
| LMArena Text | 1354 | 1482 |
| LMArena Creative Writing | 1340 | 1470 |
| LMArena Multi-Turn | 1350 | 1481 |
| Short-Story Creative Writing | 73.8% | — |
| EQ-Bench Creative Writing | 1128 | — |
| WildBench | 80% | — |
| EQ-Bench 4 | — | 1087 |
| LiveBench Language | 51.3% | — |
Frequently asked questions
Is Gemini 2.0 Flash (Feb 2025) better than Gemini 3.5 Flash?
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 35.1 on the Noometry Index.
Is Gemini 2.0 Flash (Feb 2025) or Gemini 3.5 Flash better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 28.4 in the Noometry coding category.
How many benchmarks do Gemini 2.0 Flash (Feb 2025) and Gemini 3.5 Flash share?
27 benchmarks have published results for both models. Gemini 2.0 Flash (Feb 2025) has 54 scored results on Noometry and Gemini 3.5 Flash has 54.