# Gemini 3.7 Flash vs Grok 4.5

> Side-by-side benchmark comparison for Gemini 3.7 Flash and Grok 4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-7-flash-vs-grok-4-5
- Last updated: September 27, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Gemini 3.7 Flash if you want the stronger benchmark profile. Grok 4.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 3.7 Flash leads overall 67.66 to 65.27.
- The clearest category separation is in reasoning, where the averages are 77.8 for Gemini 3.7 Flash and 50.3 for Grok 4.5.
- The biggest single benchmark swing is ARC-AGI-2 in Reasoning, with scores of 84.6% and 52.6%.
- Gemini 3.7 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.7 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.7 Flash | Grok 4.5 |
|----------|----------|----------|
| Creator | Google | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 500K |
| Overall Score | 67.66 | 65.27 |
| Benchmarks Covered | 25 | 15 |
| Pricing (input/output) | $0.75 / $3.75 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Gemini 3.7 Flash
- Gemini 3.7 Flash public-lane score: 58.6 (Supported · #20/105)
- Grok 4.5 public-lane score: 57.9 (Supported · #21/105)

| Benchmark | Gemini 3.7 Flash | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.8% | 83.3% | Gemini 3.7 Flash |
| Terminal-Bench 3.0 | 14.9% | 15.7% | Grok 4.5 |
| AutomationBench | 30.4% | Coming soon | Coming soon |
| OSWorld 2.0 | 47.9% | Coming soon | Coming soon |
| Agents' Last Exam | 26.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 77.5% | 67.8% | Gemini 3.7 Flash |
| ApprenticeBench | 16% | Coming soon | Coming soon |
| deepSwe | Coming soon | 53% | Coming soon |

### Coding

- Winner: Gemini 3.7 Flash
- Gemini 3.7 Flash public-lane score: 60.3 (Supported · #17/135)
- Grok 4.5 public-lane score: 58.1 (Supported · #19/135)

| Benchmark | Gemini 3.7 Flash | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 43.6% | Coming soon | Coming soon |
| DeepSWE | 65.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 85.8% | 83.3% | Gemini 3.7 Flash |
| FrontierSWE v2 | 20.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.7% | 87.4% | Gemini 3.7 Flash |
| SWE-bench (Vals) | 80.8% | 86.6% | Grok 4.5 |
| SWE-bench Pro | Coming soon | 64.7% | Coming soon |
| SWE Multilingual | Coming soon | 78% | Coming soon |
| cursorBench32 | Coming soon | 66.7% | Coming soon |
| VulcanBench v3 | Coming soon | 89.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 77.8 (Unranked · 5 rankable rows)
- Grok 4.5 public-lane score: 50.3 (#19/19)

| Benchmark | Gemini 3.7 Flash | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 64K-128K | 97% | Coming soon | Coming soon |
| ARC-AGI-1 | 95.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 84.6% | 52.6% | Gemini 3.7 Flash |
| ARC-AGI-3 | Coming soon | 0.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 82.6 (#10/50)
- Grok 4.5 public-lane score: 78.5 (Unranked · 1 rankable row)

| Benchmark | Gemini 3.7 Flash | Grok 4.5 | 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 |

### Knowledge

- Winner: Gemini 3.7 Flash
- Gemini 3.7 Flash public-lane score: 71.1 (Supported · #10/158)
- Grok 4.5 public-lane score: 66.8 (Supported · #17/158)

| Benchmark | Gemini 3.7 Flash | Grok 4.5 | 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% | 92.9% | Gemini 3.7 Flash |
| MMLU-Pro (Vals) | 90.1% | 89.2% | Gemini 3.7 Flash |

## FAQ

### Which is better overall, Gemini 3.7 Flash or Grok 4.5?

Gemini 3.7 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.7 Flash and Grok 4.5?

The widest category gap is in reasoning, where the averages are 77.8 for Gemini 3.7 Flash and 50.3 for Grok 4.5.

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

Gemini 3.7 Flash currently has 25 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.5 cover on BenchLM?

Grok 4.5 currently has 15 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.7 Flash vs GPT-6 Astra](/compare/gemini-3-7-flash-vs-gpt-6-astra)
- [Grok 4.5 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-5)
- [Gemini 3.7 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-7-flash)
- [Grok 4.5 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-4-5)

## Explore More

- [Gemini 3.7 Flash profile](/models/gemini-3-7-flash)
- [Grok 4.5 profile](/models/grok-4-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)