# Gemini 1.0 Pro vs Step 3.5 Flash

> Step 3.5 Flash is the stronger model overall, scoring 42.3 to 27.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-0-pro-vs-step-3-5-flash
- Last updated: 2026-10-11
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Gemini 1.0 Pro scores higher in 0 categories and Step 3.5 Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.5 Flash leads 42.6 to 9.3.
- Step 3.5 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| Provider | Google | StepFun |
| Noometry Index | 27.3 | 42.3 |
| Rank | 332 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Proprietary | Open |

## Coding

- Gemini 1.0 Pro: 32.2 (#275)
- Step 3.5 Flash: 42.4 (#105)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1108 | 1436 |
| HumanEval+ | 55.5% | — |
| MBPP+ | 61.4% | — |

## Reasoning

- Gemini 1.0 Pro: 17.1 (#296)
- Step 3.5 Flash: 22.2 (#202)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1109 | 1411 |
| NYT Connections (extended) | — | 28.4% |
| DTBench | 45.9% | — |
| Epoch Capabilities Index | 117.04 | — |

## Math

- Gemini 1.0 Pro: 9.3 (#321)
- Step 3.5 Flash: 42.6 (#84)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1132 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| MATH Level 5 | 11.2% | — |

## Knowledge

- Gemini 1.0 Pro: 15.6 (#291)
- Step 3.5 Flash: 39.6 (#132)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1059 | 1421 |
| GPQA Diamond | 34% | — |
| MMLU | 70% | — |

## Multilingual

- Gemini 1.0 Pro: 33.4 (#252)
- Step 3.5 Flash: 50.5 (#119)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1138 | 1385 |
| LMArena Chinese | 1124 | 1447 |
| LMArena French | 1145 | 1421 |
| LMArena German | 1125 | 1405 |
| LMArena Japanese | 1023 | 1354 |
| LMArena Russian | 1186 | 1385 |
| LMArena Spanish | 1119 | 1419 |
| LMArena Korean | — | 1352 |

## Instruction Following

- Gemini 1.0 Pro: 57.6 (#267)
- Step 3.5 Flash: 73.1 (#124)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1114 | 1385 |

## Long Context

- Gemini 1.0 Pro: 34.3 (#249)
- Step 3.5 Flash: 42.8 (#117)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1132 | 1402 |

## Writing & Preference

- Gemini 1.0 Pro: 36.0 (#264)
- Step 3.5 Flash: 58.8 (#113)

| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1149 | 1403 |
| LMArena Creative Writing | 1131 | 1357 |
| LMArena Multi-Turn | 1139 | 1405 |

## FAQ

### Is Gemini 1.0 Pro better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 42.3 to 27.3 on the Noometry Index.

### Is Gemini 1.0 Pro or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 32.2 in the Noometry coding category.

### How many benchmarks do Gemini 1.0 Pro and Step 3.5 Flash share?

16 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and Step 3.5 Flash has 19.