# Gemini 3.7 Flash vs GPT-6 Astra

> Side-by-side benchmark comparison for Gemini 3.7 Flash and GPT-6 Astra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-7-flash-vs-gpt-6-astra
- Last updated: October 17, 2026

- Shared sourced benchmarks: 13
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick GPT-6 Astra if you want the stronger benchmark profile. Gemini 3.7 Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-6 Astra leads overall 83.88 to 66.84.
- The clearest category separation is in mathematics, where the averages are 74.8 for Gemini 3.7 Flash and 97.3 for GPT-6 Astra.
- The biggest single benchmark swing is FrontierMath v2 (Tier 4) in Mathematics, with scores of 36.585% and 97.600%.
- Gemini 3.7 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-6 Astra also has the larger context window at 1.05M.

## Model Snapshot

| Property | Gemini 3.7 Flash | GPT-6 Astra |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | 66.84 | 83.88 |
| Benchmarks Covered | 28 | 40 |
| Pricing (input/output) | $0.75 / $3.75 | $10.00 / $50.00 |

## Category Breakdown

### Agentic

- Winner: GPT-6 Astra
- Gemini 3.7 Flash public-lane score: 59.2 (Supported · #29/128)
- GPT-6 Astra public-lane score: 74.8 (Supported · #7/128)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.8% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | 14.9% | Coming soon | Coming soon |
| AutomationBench | 30.4% | 41.4% | GPT-6 Astra |
| OSWorld 2.0 | 47.9% | 72.6% | GPT-6 Astra |
| Agents' Last Exam | 26.3% | 59.3% | GPT-6 Astra |
| Terminal-Bench 2.1 (Vals) | 77.5% | 87.3% | GPT-6 Astra |
| ApprenticeBench | 16% | 68% | GPT-6 Astra |
| MazeBench | 1% | 23% | GPT-6 Astra |
| BrowseComp | Coming soon | 91.5% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 57.90% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 64.6% | Coming soon |
| ExploitGym | Coming soon | 42.4% | Coming soon |
| HLE w/ tools | Coming soon | 57.2% | Coming soon |
| CWE-bench v1 | Coming soon | 68.0% | Coming soon |
| Hermes Index | Coming soon | 56.3% | Coming soon |
| Hermes Bench | Coming soon | 73.7% | Coming soon |

### Coding

- Winner: GPT-6 Astra
- Gemini 3.7 Flash public-lane score: 57.6 (Supported · #24/150)
- GPT-6 Astra public-lane score: 75.5 (Supported · #4/150)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 43.6% | 53.3% | GPT-6 Astra |
| DeepSWE | 65.3% | 74.1% | GPT-6 Astra |
| Terminal-Bench 2.1 | 85.8% | Coming soon | Coming soon |
| FrontierSWE v2 | 20.3% | 65.5% | GPT-6 Astra |
| LiveCodeBench (Vals) | 88.7% | Coming soon | Coming soon |
| SWE-bench (Vals) | 80.8% | Coming soon | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 64.5% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 44.3% | Coming soon |
| Bug Hunt Bench | Coming soon | 45.0 fixes | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 81.6 (Unranked · 5 rankable rows)
- GPT-6 Astra public-lane score: 93.3 (#1/28)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 64K-128K | 97% | Coming soon | Coming soon |
| ARC-AGI-1 | 95.50% | 98.50% | GPT-6 Astra |
| ARC-AGI-2 | 84.6% | 95% | GPT-6 Astra |
| STEMBench | Coming soon | 2.81 | Coming soon |
| ARC-AGI-3 | Coming soon | 62.7% | Coming soon |
| GeneBench-Pro | Coming soon | 37.8% | Coming soon |
| MRCR v2 256K-512K | Coming soon | 100.0% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 96.3% | Coming soon |
| GraphWalks BFS 256K–1M | Coming soon | 71.8% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 87.2 (#10/54)
- GPT-6 Astra public-lane score: 87.3 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| CharXiv w/o tools | 84.5% | Coming soon | Coming soon |
| CharXiv | 88.7% | Coming soon | Coming soon |
| LVBench | 85.4% | Coming soon | Coming soon |
| ScreenSpot Pro | Coming soon | 92.7% | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.959 | Coming soon |

### Knowledge

- Winner: GPT-6 Astra
- Gemini 3.7 Flash public-lane score: 71.3 (Supported · #16/184)
- GPT-6 Astra public-lane score: 86.2 (Supported · #3/184)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| HLE-Verified | 53.6% | Coming soon | Coming soon |
| LABBench2 | 82.1% | Coming soon | Coming soon |
| BioMysteryBench (human-solvable) | 87.1% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 43.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 93.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 90.1% | Coming soon | Coming soon |
| GPQA | Coming soon | 96% | Coming soon |
| GPQA-D | Coming soon | 96.0% | Coming soon |
| HealthBench (raw) | Coming soon | 56.9% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 58.3% | Coming soon |
| HealthBench Professional | Coming soon | 64.7% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 68.2% | Coming soon |
| HealthBench Hard | Coming soon | 36.6% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: Coming soon
- GPT-6 Astra public-lane score: Coming soon

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 8.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 74.8 (Unranked · 2 rankable rows)
- GPT-6 Astra public-lane score: 97.3 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.7 Flash | GPT-6 Astra | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 71.579% | 93.684% | GPT-6 Astra |
| FrontierMath v2 (Tier 4) | 36.585% | 97.600% | GPT-6 Astra |

## FAQ

### Which is better overall, Gemini 3.7 Flash or GPT-6 Astra?

GPT-6 Astra is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.7 Flash and GPT-6 Astra?

The widest category gap is in mathematics, where the averages are 74.8 for Gemini 3.7 Flash and 97.3 for GPT-6 Astra.

### How many benchmarks does Gemini 3.7 Flash cover on BenchLM?

Gemini 3.7 Flash currently has 28 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-6 Astra cover on BenchLM?

GPT-6 Astra currently has 40 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.7 Flash vs GPT-6.1 Sol](/compare/gemini-3-7-flash-vs-gpt-6-1-sol)
- [GPT-6 Astra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-astra)
- [Gemini 3.7 Flash vs GPT-6 Sol](/compare/gemini-3-7-flash-vs-gpt-6-sol)
- [GPT-6 Astra vs GPT-6 Sol](/compare/gpt-6-astra-vs-gpt-6-sol)

## Explore More

- [Gemini 3.7 Flash profile](/models/gemini-3-7-flash)
- [GPT-6 Astra profile](/models/gpt-6-astra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)