Model comparison
Gemini 2.0 Pro vs Gemini 3.5 Flash
Gemini 3.5 Flash is the stronger model overall, scoring 54.1 to 38.6 on the Noometry Index.
Last verified . 3 shared benchmarks.
GoogleSummary
- They share 3 benchmarks with published results for both. Gemini 2.0 Pro scores higher in 0 categories and Gemini 3.5 Flash in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.7 to 21.6.
- The biggest single-benchmark swing is GPQA Diamond: 65.7% for Gemini 2.0 Pro and 92.8% for Gemini 3.5 Flash.
Side by side
| Gemini 2.0 Pro | Gemini 3.5 Flash | |
|---|---|---|
| Provider | ||
| Noometry Index | 38.6 | 54.1 |
| Released | 2025-02-05 | 2026-05-19 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1.50 |
| Output $ / M tokens | — | $9 |
| Results tracked | 14 | 54 |
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Category by category
Coding Gemini 3.5 Flash leads
Gemini 2.0 Pro: 37.4 (#182), Gemini 3.5 Flash: 49.1 (#46)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| SWE-bench Verified | — | 79.3% |
| DeepSWE | — | 37.4% |
| Aider Polyglot | 35.6% | — |
| LMArena WebDev | — | 1499 |
| SciCode | — | 53.1% |
| WeirdML | — | 62.6% |
| LiveBench Coding | 63.5% | — |
| LMArena Coding | — | 1492 |
| ALE-Bench | — | 911.02 |
Agentic & Tool Use Not comparable
Gemini 2.0 Pro: —, Gemini 3.5 Flash: 24.8 (#107)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| APEX-Agents | — | 27.5% |
| GBAEval | — | 6.7% |
| GDP.pdf | — | 14% |
| Vending-Bench 2 | — | 5,396 |
Reasoning Gemini 3.5 Flash leads
Gemini 2.0 Pro: 21.6 (#194), Gemini 3.5 Flash: 62.7 (#16)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| EnigmaEval | 0.7% | 25.4% |
| Epoch Capabilities Index | 135.06 | 154.55 |
| ARC-AGI-2 | — | 72.1% |
| SimpleBench | — | 76.7% |
| NYT Connections (extended) | — | 92.6% |
| ARC-AGI-1 | — | 92.5% |
| CritPt | — | 13.1% |
| Chess Puzzles | — | 50% |
| EBR-Bench | — | 4.8% |
| LiveBench Reasoning | 60.1% | — |
| LMArena Hard Prompts | — | 1488 |
| Mystery Game Puzzles | — | 32% |
| DTBench | — | 94.7% |
| LiveBench Data Analysis | 68% | — |
| LMCA | — | 47.1% |
| Surface Evolver Bench | — | 58.1% |
| ForecastBench | — | 59 |
| LiveBench | 65.1% | — |
Math Gemini 3.5 Flash leads
Gemini 2.0 Pro: 37.1 (#101), Gemini 3.5 Flash: 60.5 (#30)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| 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% |
| LiveBench Math | 71% | — |
| LMArena Math | — | 1502 |
| MATH Level 5 | 83.5% | — |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Gemini 3.5 Flash leads
Gemini 2.0 Pro: 36.5 (#156), Gemini 3.5 Flash: 66.3 (#10)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| GPQA Diamond | 65.7% | 92.8% |
| SimpleQA Verified | — | 66.2% |
| Confabulations | 18.4% | — |
| LMArena Expert | — | 1493 |
Multimodal Not comparable
Gemini 2.0 Pro: —, Gemini 3.5 Flash: 45.7 (#13)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| LMArena Vision | — | 1311 |
| Blueprint-Bench 2 | — | 33.6% |
| LMArena Document | — | 1463 |
Multilingual Not comparable
Gemini 2.0 Pro: —, Gemini 3.5 Flash: 57.1 (#12)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| LMArena Non-English | — | 1475 |
| LMArena Chinese | — | 1525 |
| LMArena French | — | 1490 |
| LMArena German | — | 1500 |
| LMArena Japanese | — | 1481 |
| LMArena Korean | — | 1453 |
| LMArena Russian | — | 1491 |
| LMArena Spanish | — | 1478 |
Instruction Following Gemini 3.5 Flash leads
Gemini 2.0 Pro: 75.6 (#57), Gemini 3.5 Flash: 77.2 (#29)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| LiveBench Instruction Following | 83.4% | — |
| LMArena Instruction Following | — | 1466 |
Long Context Gemini 3.5 Flash leads
Gemini 2.0 Pro: 29.1 (#287), Gemini 3.5 Flash: 45.3 (#39)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| Fiction.LiveBench | 41.7% | — |
| LMArena Longer Query | — | 1481 |
Writing & Preference Gemini 3.5 Flash leads
Gemini 2.0 Pro: 52.7 (#164), Gemini 3.5 Flash: 65.5 (#46)
| Benchmark | Gemini 2.0 Pro | Gemini 3.5 Flash |
|---|---|---|
| LMArena Text | — | 1481 |
| LMArena Creative Writing | — | 1467 |
| EQ-Bench 4 | — | 1087 |
| LMArena Multi-Turn | — | 1482 |
| LiveBench Language | 44.9% | — |
Frequently asked questions
Is Gemini 2.0 Pro better than Gemini 3.5 Flash?
Gemini 3.5 Flash is the stronger model overall, scoring 54.1 to 38.6 on the Noometry Index.
Is Gemini 2.0 Pro or Gemini 3.5 Flash better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.1 versus 37.4 in the Noometry coding category.
How many benchmarks do Gemini 2.0 Pro and Gemini 3.5 Flash share?
3 benchmarks have published results for both models. Gemini 2.0 Pro has 14 scored results on Noometry and Gemini 3.5 Flash has 54.