# Gemini 2.0 Flash (Feb 2025) vs Step 3.5 Flash

> Step 3.5 Flash is the stronger model overall, scoring 42.3 to 35.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-0-flash-vs-step-3-5-flash
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 2.0 Flash (Feb 2025) scores higher in 1 category and Step 3.5 Flash in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Step 3.5 Flash leads 42.4 to 28.4.
- Step 3.5 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| Provider | Google | StepFun |
| Noometry Index | 35.1 | 42.3 |
| Rank | 228 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Proprietary | Open |

## Coding

- Gemini 2.0 Flash (Feb 2025): 28.4 (#315)
- Step 3.5 Flash: 42.4 (#105)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1350 | 1436 |
| SWE-bench Verified (bash only) | 13.5% | — |
| Aider Polyglot | 38.2% | — |
| WeirdML | 25.8% | — |
| BigCodeBench Instruct | 45.9% | — |
| LiveBench Coding | 63.4% | — |
| BigCodeBench Complete | 59.9% | — |
| CadEval | 30% | — |

## Agentic & Tool Use

- Gemini 2.0 Flash (Feb 2025): 28.1 (#92)
- Step 3.5 Flash: —

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| TheAgentCompany | 11.4% | — |

## Reasoning

- Gemini 2.0 Flash (Feb 2025): 15.2 (#318)
- Step 3.5 Flash: 22.2 (#202)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1346 | 1411 |
| ARC-AGI-2 | 1.3% | — |
| SimpleBench | 31.1% | — |
| Kagi LLM Benchmark | 37.8% | — |
| NYT Connections (extended) | — | 28.4% |
| EnigmaEval | 1.1% | — |
| LiveBench Reasoning | 78.2% | — |
| DTBench | 63.2% | — |
| LiveBench Data Analysis | 69.4% | — |
| Epoch Capabilities Index | 135.36 | — |
| LiveBench | 66.9% | — |

## Math

- Gemini 2.0 Flash (Feb 2025): 37.9 (#146)
- Step 3.5 Flash: 42.6 (#84)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1352 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| 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

- Gemini 2.0 Flash (Feb 2025): 32.0 (#213)
- Step 3.5 Flash: 39.6 (#132)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1339 | 1421 |
| GPQA Diamond | 64.1% | — |
| Humanity's Last Exam | 6.6% | — |
| MMLU-Pro | 73.7% | — |
| Confabulations | 12.4% | — |
| GPQA (HELM) | 55.6% | — |
| MMLU | 79.7% | — |

## Multimodal

- Gemini 2.0 Flash (Feb 2025): 36.5 (#79)
- Step 3.5 Flash: —

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Vision | 1158 | — |
| GeoBench | 77% | — |

## Multilingual

- Gemini 2.0 Flash (Feb 2025): 47.4 (#149)
- Step 3.5 Flash: 50.5 (#119)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1342 | 1385 |
| LMArena Chinese | 1373 | 1447 |
| LMArena French | 1391 | 1421 |
| LMArena German | 1353 | 1405 |
| LMArena Japanese | 1294 | 1354 |
| LMArena Korean | 1313 | 1352 |
| LMArena Russian | 1351 | 1385 |
| LMArena Spanish | 1363 | 1419 |

## Instruction Following

- Gemini 2.0 Flash (Feb 2025): 74.4 (#97)
- Step 3.5 Flash: 73.1 (#124)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1336 | 1385 |
| LiveBench Instruction Following | 85.8% | — |
| IFEval | 84.1% | — |

## Long Context

- Gemini 2.0 Flash (Feb 2025): 38.1 (#203)
- Step 3.5 Flash: 42.8 (#117)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1344 | 1402 |
| Fiction.LiveBench | 61.1% | — |

## Writing & Preference

- Gemini 2.0 Flash (Feb 2025): 49.5 (#190)
- Step 3.5 Flash: 58.8 (#113)

| Benchmark | Gemini 2.0 Flash (Feb 2025) | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1354 | 1403 |
| LMArena Creative Writing | 1340 | 1357 |
| LMArena Multi-Turn | 1350 | 1405 |
| Short-Story Creative Writing | 73.8% | — |
| EQ-Bench Creative Writing | 1128 | — |
| WildBench | 80% | — |
| LiveBench Language | 51.3% | — |

## FAQ

### Is Gemini 2.0 Flash (Feb 2025) better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 42.3 to 35.1 on the Noometry Index.

### Is Gemini 2.0 Flash (Feb 2025) or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 28.4 in the Noometry coding category.

### How many benchmarks do Gemini 2.0 Flash (Feb 2025) and Step 3.5 Flash share?

17 benchmarks have published results for both models. Gemini 2.0 Flash (Feb 2025) has 54 scored results on Noometry and Step 3.5 Flash has 19.