Model comparison
Gemini 2.0 Pro vs Gemini 3.1 Flash Lite
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 39.1 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 2 categories and Gemini 3.1 Flash Lite in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where Gemini 3.1 Flash Lite leads 42.5 to 29.2.
- The biggest single-benchmark swing is GPQA Diamond: 65.7% for Gemini 2.0 Pro and 81.8% for Gemini 3.1 Flash Lite.
Side by side
| Gemini 2.0 Pro | Gemini 3.1 Flash Lite | |
|---|---|---|
| Provider | ||
| Noometry Index | 39.1 | 40.8 |
| Released | 2025-02-05 | 2026-03-03 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $1.50 |
| Results tracked | 14 | 38 |
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Category by category
Coding Too close to call
Gemini 2.0 Pro: 37.8 (#187), Gemini 3.1 Flash Lite: 37.8 (#188)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| Aider Polyglot | 35.6% | — |
| LMArena WebDev | — | 1256 |
| SciCode | — | 41.9% |
| WeirdML | — | 52.2% |
| LiveBench Coding | 63.5% | — |
| LMArena Coding | — | 1400 |
| ALE-Bench | — | 797.73 |
Agentic & Tool Use Not comparable
Gemini 2.0 Pro: —, Gemini 3.1 Flash Lite: 30.2 (#79)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| DeepResearch Bench | — | 37.3% |
Reasoning Too close to call
Gemini 2.0 Pro: 22.3 (#198), Gemini 3.1 Flash Lite: 22.9 (#186)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| EnigmaEval | 0.7% | 3% |
| Epoch Capabilities Index | 135.06 | 144.47 |
| Kagi LLM Benchmark | — | 67.2% |
| NYT Connections (extended) | — | 8.2% |
| CritPt | — | 1.1% |
| Chess Puzzles | — | 25% |
| Thematic Generalization | — | 63.3% |
| LiveBench Reasoning | 60.1% | — |
| LMArena Hard Prompts | — | 1407 |
| DTBench | — | 76.8% |
| LiveBench Data Analysis | 68% | — |
| LMCA | — | 35% |
| ForecastBench | — | 54.4 |
| LiveBench | 65.1% | — |
Math Gemini 3.1 Flash Lite leads
Gemini 2.0 Pro: 39.7 (#100), Gemini 3.1 Flash Lite: 40.7 (#90)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 27.7% |
| OTIS Mock AIME 2024-2025 | — | 80% |
| LiveBench Math | 71% | — |
| LMArena Math | — | 1428 |
| MATH Level 5 | 83.5% | — |
Knowledge Gemini 3.1 Flash Lite leads
Gemini 2.0 Pro: 36.5 (#167), Gemini 3.1 Flash Lite: 41.9 (#104)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| GPQA Diamond | 65.7% | 81.8% |
| Humanity's Last Exam | — | 8.6% |
| Confabulations | 18.4% | — |
| Vectara Hallucination Rate | — | 8.2% |
| LMArena Expert | — | 1398 |
Multimodal Not comparable
Gemini 2.0 Pro: —, Gemini 3.1 Flash Lite: 39.4 (#60)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Vision | — | 1240 |
Multilingual Not comparable
Gemini 2.0 Pro: —, Gemini 3.1 Flash Lite: 52.3 (#86)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Non-English | — | 1411 |
| LMArena Chinese | — | 1461 |
| LMArena French | — | 1424 |
| LMArena German | — | 1429 |
| LMArena Japanese | — | 1413 |
| LMArena Korean | — | 1392 |
| LMArena Russian | — | 1420 |
| LMArena Spanish | — | 1421 |
Instruction Following Gemini 2.0 Pro leads
Gemini 2.0 Pro: 75.5 (#59), Gemini 3.1 Flash Lite: 72.7 (#131)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| LiveBench Instruction Following | 83.4% | — |
| LMArena Instruction Following | — | 1377 |
Long Context Gemini 3.1 Flash Lite leads
Gemini 2.0 Pro: 29.2 (#292), Gemini 3.1 Flash Lite: 42.5 (#122)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| Fiction.LiveBench | 41.7% | — |
| LMArena Longer Query | — | 1394 |
Writing & Preference Gemini 3.1 Flash Lite leads
Gemini 2.0 Pro: 52.7 (#165), Gemini 3.1 Flash Lite: 60.9 (#94)
| Benchmark | Gemini 2.0 Pro | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Text | — | 1416 |
| LMArena Creative Writing | — | 1401 |
| LMArena Multi-Turn | — | 1417 |
| LiveBench Language | 44.9% | — |
Frequently asked questions
Is Gemini 2.0 Pro better than Gemini 3.1 Flash Lite?
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 39.1 on the Noometry Index.
Is Gemini 2.0 Pro or Gemini 3.1 Flash Lite better for coding?
They score almost the same on coding (37.8 vs 37.8); test both on your own repository before choosing.
How many benchmarks do Gemini 2.0 Pro and Gemini 3.1 Flash Lite share?
3 benchmarks have published results for both models. Gemini 2.0 Pro has 14 scored results on Noometry and Gemini 3.1 Flash Lite has 38.