# Gemini 2.5 Pro vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 47.9 to 45.0 on the Noometry Index.

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

## Summary

- They share 17 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 5 categories and Step 5 Preview in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in long context, where Gemini 2.5 Pro leads 59.8 to 44.5.
- The biggest single-benchmark swing is CritPt: 2% for Gemini 2.5 Pro and 20.9% for Step 5 Preview.
- Step 5 Preview is cheaper at $1 / $2.70 per million input/output tokens, against $1.25 / $10 for Gemini 2.5 Pro.
- Gemini 2.5 Pro accepts more context: 1.05M tokens versus 1.02M.

## Snapshot

| | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| Provider | Google | StepFun |
| Noometry Index | 45.0 | 47.9 |
| Rank | 75 | 58 |
| Context | 1.05M | 1.02M |
| Input $/M | $1.25 | $1 |
| Output $/M | $10 | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.5 Pro: 42.4 (#101)
- Step 5 Preview: 51.8 (#36)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena WebDev | 1227 | 1564 |
| SciCode | 42.8% | 58.9% |
| LMArena Coding | 1452 | 1480 |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| Aider Polyglot | 83.1% | — |
| GSO | 3.9% | — |
| WeirdML | 54% | — |
| LiveBench Coding | 85.9% | — |
| CadEval | 64% | — |
| ALE-Bench | 785.52 | — |
| AlgoTune | 1.51 | — |

## Agentic & Tool Use

- Gemini 2.5 Pro: 29.2 (#88)
- Step 5 Preview: —

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| Terminal-Bench | 32.6% | — |
| GDPval | 23.3% | — |
| Remote Labor Index | 0.8% | — |
| TheAgentCompany | 30.3% | — |
| τ²-bench Banking | 13.7% | — |
| DeepResearch Bench | 42.8% | — |
| BALROG | 43.3% | — |
| LMArena Search | 1142 | — |
| METR Time Horizons | 55.4% | — |
| Vending-Bench 2 | 573.64 | — |

## Reasoning

- Gemini 2.5 Pro: 28.8 (#99)
- Step 5 Preview: 40.0 (#57)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| CritPt | 2% | 20.9% |
| LMArena Hard Prompts | 1455 | 1465 |
| ARC-AGI-2 | 4.9% | — |
| SimpleBench | 62.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 41% | — |
| Chess Puzzles | 20% | — |
| EnigmaEval | 5.6% | — |
| LiveBench Reasoning | 89.8% | — |
| DTBench | 82.4% | — |
| LiveBench Data Analysis | 79.9% | — |
| LMCA | 34.8% | — |
| Epoch Capabilities Index | 145.32 | — |
| ForecastBench | 61.3 | — |
| LiveBench | 82.3% | — |

## Math

- Gemini 2.5 Pro: 32.5 (#213)
- Step 5 Preview: 46.1 (#72)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Math | 1450 | 1470 |
| FrontierMath (Tiers 1-3) | 24.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 84.7% | — |
| ProofBench | — | 42% |
| Omni-MATH | 41.6% | — |
| LiveBench Math | 90.2% | — |
| MATH Level 5 | 95.9% | — |
| FrontierMath (Feb 2025 set) | 14.1% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 2.5 Pro: 56.0 (#46)
- Step 5 Preview: 41.2 (#112)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1452 | 1470 |
| GPQA Diamond | 85.3% | — |
| Humanity's Last Exam | 21.6% | — |
| MMLU-Pro | 86.3% | — |
| Confabulations | 10.6% | — |
| Vectara Hallucination Rate | 7% | — |
| GPQA (HELM) | 74.9% | — |

## Multimodal

- Gemini 2.5 Pro: 45.2 (#18)
- Step 5 Preview: 41.0 (#41)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Vision | 1263 | 1267 |
| GeoBench | 86% | — |
| VPCT | 48% | — |
| LMArena Document | 1421 | — |
| SpatialViz-Bench | 44.7% | — |

## Multilingual

- Gemini 2.5 Pro: 55.3 (#31)
- Step 5 Preview: 53.8 (#54)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1451 | 1432 |
| LMArena Chinese | 1507 | 1519 |
| LMArena Russian | 1461 | 1436 |
| LMArena Spanish | 1473 | 1439 |
| LMArena French | 1472 | — |
| LMArena German | 1487 | — |
| LMArena Japanese | 1461 | — |
| LMArena Korean | 1434 | — |

## Instruction Following

- Gemini 2.5 Pro: 75.0 (#75)
- Step 5 Preview: 76.0 (#50)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1437 | 1444 |
| LiveBench Instruction Following | 80.6% | — |
| IFEval | 84% | — |

## Long Context

- Gemini 2.5 Pro: 59.8 (#5)
- Step 5 Preview: 44.5 (#64)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1449 | 1455 |
| Fiction.LiveBench | 91.7% | — |

## Writing & Preference

- Gemini 2.5 Pro: 63.7 (#62)
- Step 5 Preview: 62.8 (#71)

| Benchmark | Gemini 2.5 Pro | Step 5 Preview |
|---|---|---|
| LMArena Text | 1458 | 1442 |
| LMArena Creative Writing | 1454 | 1410 |
| LMArena Multi-Turn | 1453 | 1447 |
| Short-Story Creative Writing | 83.8% | — |
| EQ-Bench Creative Writing | 1421 | — |
| WildBench | 85.7% | — |
| LiveBench Language | 67.8% | — |

## FAQ

### Is Gemini 2.5 Pro better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 47.9 to 45.0 on the Noometry Index.

### Which is cheaper, Gemini 2.5 Pro or Step 5 Preview?

Step 5 Preview is cheaper. It lists at $1 per million input tokens and $2.70 per million output tokens; Gemini 2.5 Pro lists at $1.25 and $10.

### Is Gemini 2.5 Pro or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 51.8 versus 42.4 in the Noometry coding category.

### Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 1.02M.

### How many benchmarks do Gemini 2.5 Pro and Step 5 Preview share?

17 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Step 5 Preview has 18.