# Gemini 3 Pro vs Step 3.7 Flash

> Side-by-side benchmark comparison for Gemini 3 Pro and Step 3.7 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-pro-vs-step-3-7-flash
- Last updated: October 15, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 3 Pro and Step 3.7 Flash share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Step 3.7 Flash has the lower published output-token price.
- Gemini 3 Pro has the larger published context window at 2M.

## Model Snapshot

| Property | Gemini 3 Pro | Step 3.7 Flash |
|----------|----------|----------|
| Creator | Google | StepFun |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 2M | 256K |
| Independent public score (not head-to-head) | 61.13 | 43.7 |
| Benchmarks Covered | 27 | 11 |
| Pricing (input/output) | $2.00 / $12.00 | $0.20 / $1.15 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 37.1 (Estimated · #74/126)

| Benchmark | Gemini 3 Pro | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 63.23% | 51.57% | Gemini 3 Pro |
| JobBench | 11.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 59.5% | Coming soon |
| BrowseComp | Coming soon | 75.8% | Coming soon |
| DeepSearchQA | Coming soon | 92.8% | Coming soon |
| Toolathlon | Coming soon | 49.5% | Coming soon |
| Claw-Eval | Coming soon | 67.1% | Coming soon |
| HLE w/ tools | Coming soon | 47.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: 43 (Estimated · #58/149)
- Step 3.7 Flash public-lane score: 30.2 (Estimated · #95/149)

| Benchmark | Gemini 3 Pro | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 14.30% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 56.3% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 59.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: 50.1 (Unranked · 4 rankable rows)
- Step 3.7 Flash public-lane score: 76.5 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3 Pro | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 31.1% | Coming soon | Coming soon |
| ARC-AGI-1 | 75.00% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: 80 (#18/54)
- Step 3.7 Flash public-lane score: 75.4 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3 Pro | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 87.2% | Coming soon | Coming soon |
| MMMU-Pro | 81% | Coming soon | Coming soon |
| RealWorldQA | 83.3% | Coming soon | Coming soon |
| OmniDocBench 1.5 | 88.5% | Coming soon | Coming soon |
| Video-MME (with subtitle) | 88.4% | Coming soon | Coming soon |
| Video-MME (w/o subtitle) | 87.7% | Coming soon | Coming soon |
| MathVision | 86.6% | Coming soon | Coming soon |
| We-Math | 86.9% | Coming soon | Coming soon |
| DynaMath | 85.1% | Coming soon | Coming soon |
| SimpleVQA | 73.2% | 79.2% | Step 3.7 Flash |
| MMLongBench-Doc | 60.5% | Coming soon | Coming soon |
| CC-OCR | 79.0% | Coming soon | Coming soon |
| AI2D_TEST | 94.1% | Coming soon | Coming soon |
| CountBench | 97.3% | Coming soon | Coming soon |
| RefCOCO (avg) | 84.1% | Coming soon | Coming soon |
| ODINW13 | 46.3% | Coming soon | Coming soon |
| ERQA | 70.5% | Coming soon | Coming soon |
| VideoMMMU | 87.6% | Coming soon | Coming soon |
| MLVU (M-Avg) | 83.0% | Coming soon | Coming soon |
| ScreenSpot Pro | 72.7% | Coming soon | Coming soon |
| CharXiv | 81.4% | Coming soon | Coming soon |
| V* | 88.0% | 95.3% | Step 3.7 Flash |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: 60.6 (Estimated · #46/182)
- Step 3.7 Flash public-lane score: 45 (Estimated · #96/182)

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3 Pro public-lane score: 86.1 (#43/146)
- Step 3.7 Flash public-lane score: 82.1 (#54/146)

## FAQ

### Is there enough evidence to pick between Gemini 3 Pro and Step 3.7 Flash?

Not yet. The models share only 3 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Gemini 3 Pro vs Gemini 3 Pro Deep Think](/compare/gemini-3-pro-vs-gemini-3-pro-deep-think)
- [Step 3.7 Flash vs Gemini 3 Pro Deep Think](/compare/gemini-3-pro-deep-think-vs-step-3-7-flash)
- [Gemini 3 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-pro)
- [Step 3.7 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-step-3-7-flash)

## Explore More

- [Gemini 3 Pro profile](/models/gemini-3-pro)
- [Step 3.7 Flash profile](/models/step-3-7-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)