Model comparison
Gemini 2.5 Flash vs Gemma 2B
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 29.6 on the Noometry Index.
Last verified . 12 shared benchmarks.
GoogleSummary
- They share 12 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 6 categories and Gemma 2B in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemini 2.5 Flash leads 53.8 to 24.0.
- Gemma 2B has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Flash | Gemma 2B | |
|---|---|---|
| Provider | ||
| Noometry Index | 39.3 | 29.6 |
| Released | 2025-04-17 | 2024-02-21 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.30 | — |
| Output $ / M tokens | $2.50 | — |
| Results tracked | 54 | 23 |
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Category by category
Coding Gemini 2.5 Flash leads
Gemini 2.5 Flash: 35.8 (#220), Gemma 2B: 29.4 (#305)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Coding | 1424 | 1010 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| WeirdML | 41.9% | — |
| ALE-Bench | 661.88 | — |
| HumanEval+ | — | 20.7% |
| MBPP+ | — | 34.1% |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash: 30.8 (#74), Gemma 2B: —
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Too close to call
Gemini 2.5 Flash: 18.1 (#286), Gemma 2B: 18.8 (#275)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Hard Prompts | 1422 | 989 |
| Epoch Capabilities Index | 143.03 | 94.2 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| Kagi LLM Benchmark | 56.8% | — |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| EnigmaEval | 2.7% | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| BIG-Bench Hard | — | 35.2% |
| ForecastBench | 60.6 | — |
| HellaSwag | — | 71.4% |
| PIQA | — | 77.3% |
| WinoGrande | — | 65.4% |
Math Gemini 2.5 Flash leads
Gemini 2.5 Flash: 39.9 (#98), Gemma 2B: 30.0 (#239)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Math | 1415 | 1009 |
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
| GSM8K | — | 17.7% |
Knowledge Not comparable
Gemini 2.5 Flash: 36.4 (#168), Gemma 2B: —
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |
| LMArena Expert | 1426 | — |
| ARC (AI2) Challenge | — | 42.1% |
| BoolQ | — | 69.4% |
| MMLU | — | 42.3% |
| TriviaQA | — | 53.2% |
Multimodal Not comparable
Gemini 2.5 Flash: 41.8 (#32), Gemma 2B: —
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Vision | 1253 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |
Multilingual Gemini 2.5 Flash leads
Gemini 2.5 Flash: 52.3 (#88), Gemma 2B: 23.0 (#294)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Non-English | 1409 | 958 |
| LMArena Chinese | 1450 | 986 |
| LMArena Russian | 1415 | 937 |
| LMArena French | 1433 | — |
| LMArena German | 1418 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1385 | — |
| LMArena Spanish | 1421 | — |
Instruction Following Gemini 2.5 Flash leads
Gemini 2.5 Flash: 75.7 (#54), Gemma 2B: 48.5 (#302)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Instruction Following | 1405 | 970 |
| IFEval | 89.8% | — |
Long Context Gemini 2.5 Flash leads
Gemini 2.5 Flash: 47.5 (#17), Gemma 2B: 29.9 (#291)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Longer Query | 1419 | 981 |
| Fiction.LiveBench | 77.8% | — |
Writing & Preference Gemini 2.5 Flash leads
Gemini 2.5 Flash: 53.8 (#157), Gemma 2B: 24.0 (#308)
| Benchmark | Gemini 2.5 Flash | Gemma 2B |
|---|---|---|
| LMArena Text | 1417 | 1002 |
| LMArena Creative Writing | 1400 | 987 |
| LMArena Multi-Turn | 1408 | 945 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |
| WildBench | 81.7% | — |
Frequently asked questions
Is Gemini 2.5 Flash better than Gemma 2B?
Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 29.6 on the Noometry Index.
Is Gemini 2.5 Flash or Gemma 2B better for coding?
Gemini 2.5 Flash scores higher on coding benchmarks: 35.8 versus 29.4 in the Noometry coding category.
How many benchmarks do Gemini 2.5 Flash and Gemma 2B share?
12 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Gemma 2B has 23.