Model comparison
Gemini 2.5 Flash vs Granite 4.2 30b
Granite 4.2 30b is the stronger model overall, scoring 41.8 to 39.3 on the Noometry Index.
Last verified . 11 shared benchmarks.
GoogleSummary
- They share 11 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 3 categories and Granite 4.2 30b in 4 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Granite 4.2 30b leads 27.8 to 18.1.
- Granite 4.2 30b has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Flash | Granite 4.2 30b | |
|---|---|---|
| Provider | IBM | |
| Noometry Index | 39.3 | 41.8 |
| Released | 2025-04-17 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.30 | — |
| Output $ / M tokens | $2.50 | — |
| Results tracked | 54 | 11 |
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Category by category
Coding Granite 4.2 30b leads
Gemini 2.5 Flash: 35.8 (#220), Granite 4.2 30b: 41.0 (#126)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Coding | 1424 | 1396 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| WeirdML | 41.9% | — |
| ALE-Bench | 661.88 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash: 30.8 (#74), Granite 4.2 30b: —
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |
Reasoning Granite 4.2 30b leads
Gemini 2.5 Flash: 18.1 (#286), Granite 4.2 30b: 27.8 (#112)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1374 |
| 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% | — |
| Epoch Capabilities Index | 143.03 | — |
| ForecastBench | 60.6 | — |
Math Not comparable
Gemini 2.5 Flash: 39.9 (#98), Granite 4.2 30b: —
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| LMArena Math | 1415 | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Granite 4.2 30b leads
Gemini 2.5 Flash: 36.4 (#168), Granite 4.2 30b: 39.1 (#138)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Expert | 1426 | 1406 |
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |
Multimodal Not comparable
Gemini 2.5 Flash: 41.8 (#32), Granite 4.2 30b: —
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| 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), Granite 4.2 30b: 47.3 (#151)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Non-English | 1409 | 1340 |
| LMArena Chinese | 1450 | 1414 |
| LMArena Russian | 1415 | 1343 |
| 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), Granite 4.2 30b: 71.2 (#155)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Instruction Following | 1405 | 1347 |
| IFEval | 89.8% | — |
Long Context Gemini 2.5 Flash leads
Gemini 2.5 Flash: 47.5 (#17), Granite 4.2 30b: 41.4 (#140)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Longer Query | 1419 | 1359 |
| Fiction.LiveBench | 77.8% | — |
Writing & Preference Too close to call
Gemini 2.5 Flash: 53.8 (#157), Granite 4.2 30b: 53.8 (#156)
| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Text | 1417 | 1361 |
| LMArena Creative Writing | 1400 | 1288 |
| LMArena Multi-Turn | 1408 | 1339 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |
| WildBench | 81.7% | — |
Frequently asked questions
Is Gemini 2.5 Flash better than Granite 4.2 30b?
Granite 4.2 30b is the stronger model overall, scoring 41.8 to 39.3 on the Noometry Index.
Is Gemini 2.5 Flash or Granite 4.2 30b better for coding?
Granite 4.2 30b scores higher on coding benchmarks: 41.0 versus 35.8 in the Noometry coding category.
How many benchmarks do Gemini 2.5 Flash and Granite 4.2 30b share?
11 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Granite 4.2 30b has 11.