Model comparison
Gemini 2.0 Flash (Feb 2025) vs Grok 4 Fast
Grok 4 Fast is the stronger model overall, scoring 39.4 to 35.1 on the Noometry Index.
Last verified . 23 shared benchmarks.
GoogleSummary
- They share 23 benchmarks with published results for both. Gemini 2.0 Flash (Feb 2025) scores higher in 1 category and Grok 4 Fast in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 Fast leads 63.2 to 38.1.
- The biggest single-benchmark swing is Fiction.LiveBench: 61.1% for Gemini 2.0 Flash (Feb 2025) and 94.4% for Grok 4 Fast.
Side by side
| Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 35.1 | 39.4 |
| Released | 2024-12-06 | 2025-09-19 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 54 | 30 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 28.4 (#315), Grok 4 Fast: 32.5 (#271)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| WeirdML | 25.8% | 42.9% |
| LMArena Coding | 1350 | 1429 |
| SWE-bench Verified (bash only) | 13.5% | — |
| Aider Polyglot | 38.2% | — |
| LMArena WebDev | — | 1159 |
| BigCodeBench Instruct | 45.9% | — |
| LiveBench Coding | 63.4% | — |
| BigCodeBench Complete | 59.9% | — |
| CadEval | 30% | — |
Agentic & Tool Use Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 28.1 (#92), Grok 4 Fast: 29.5 (#86)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| TheAgentCompany | 11.4% | — |
| τ²-bench Banking | — | 15.7% |
| Cybench | — | 30% |
| LMArena Search | — | 1171 |
Reasoning Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 15.2 (#318), Grok 4 Fast: 22.2 (#201)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| ARC-AGI-2 | 1.3% | 5.3% |
| Kagi LLM Benchmark | 37.8% | 66.1% |
| LMArena Hard Prompts | 1346 | 1412 |
| DTBench | 63.2% | 82.7% |
| Epoch Capabilities Index | 135.36 | 144.2 |
| SimpleBench | 31.1% | — |
| ARC-AGI-1 | — | 48.5% |
| EnigmaEval | 1.1% | — |
| LiveBench Reasoning | 78.2% | — |
| LiveBench Data Analysis | 69.4% | — |
| ForecastBench | — | 60.5 |
| LiveBench | 66.9% | — |
Math Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 37.9 (#146), Grok 4 Fast: 38.9 (#123)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Math | 1352 | 1419 |
| OTIS Mock AIME 2024-2025 | 57.8% | — |
| Omni-MATH | 45.9% | — |
| LiveBench Math | 75.8% | — |
| MATH Level 5 | 82.2% | — |
| FrontierMath (Feb 2025 set) | 1.7% | — |
Knowledge Too close to call
Gemini 2.0 Flash (Feb 2025): 32.0 (#213), Grok 4 Fast: 32.0 (#214)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Expert | 1339 | 1411 |
| GPQA Diamond | 64.1% | — |
| Humanity's Last Exam | 6.6% | — |
| MMLU-Pro | 73.7% | — |
| Confabulations | 12.4% | — |
| Vectara Hallucination Rate | — | 19.7% |
| GPQA (HELM) | 55.6% | — |
| MMLU | 79.7% | — |
Multimodal Not comparable
Gemini 2.0 Flash (Feb 2025): 36.5 (#79), Grok 4 Fast: —
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Vision | 1158 | — |
| GeoBench | 77% | — |
Multilingual Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 47.4 (#149), Grok 4 Fast: 51.3 (#111)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Non-English | 1342 | 1396 |
| LMArena Chinese | 1373 | 1457 |
| LMArena French | 1391 | 1431 |
| LMArena German | 1353 | 1383 |
| LMArena Japanese | 1294 | 1352 |
| LMArena Korean | 1313 | 1357 |
| LMArena Russian | 1351 | 1389 |
| LMArena Spanish | 1363 | 1415 |
Instruction Following Gemini 2.0 Flash (Feb 2025) leads
Gemini 2.0 Flash (Feb 2025): 74.4 (#97), Grok 4 Fast: 73.2 (#121)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Instruction Following | 1336 | 1387 |
| LiveBench Instruction Following | 85.8% | — |
| IFEval | 84.1% | — |
Long Context Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 38.1 (#203), Grok 4 Fast: 63.2 (#3)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| Fiction.LiveBench | 61.1% | 94.4% |
| LMArena Longer Query | 1344 | 1415 |
Writing & Preference Grok 4 Fast leads
Gemini 2.0 Flash (Feb 2025): 49.5 (#190), Grok 4 Fast: 60.0 (#102)
| Benchmark | Gemini 2.0 Flash (Feb 2025) | Grok 4 Fast |
|---|---|---|
| LMArena Text | 1354 | 1407 |
| LMArena Creative Writing | 1340 | 1387 |
| LMArena Multi-Turn | 1350 | 1414 |
| Short-Story Creative Writing | 73.8% | — |
| EQ-Bench Creative Writing | 1128 | — |
| WildBench | 80% | — |
| LiveBench Language | 51.3% | — |
Frequently asked questions
Is Gemini 2.0 Flash (Feb 2025) better than Grok 4 Fast?
Grok 4 Fast is the stronger model overall, scoring 39.4 to 35.1 on the Noometry Index.
Is Gemini 2.0 Flash (Feb 2025) or Grok 4 Fast better for coding?
Grok 4 Fast scores higher on coding benchmarks: 32.5 versus 28.4 in the Noometry coding category.
How many benchmarks do Gemini 2.0 Flash (Feb 2025) and Grok 4 Fast share?
23 benchmarks have published results for both models. Gemini 2.0 Flash (Feb 2025) has 54 scored results on Noometry and Grok 4 Fast has 30.