# Gemini 3.8 Flash vs Grok 4.7

> Side-by-side benchmark comparison for Gemini 3.8 Flash and Grok 4.7 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-8-flash-vs-grok-4-7
- Last updated: September 21, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Gemini 3.8 Flash if you want the stronger benchmark profile. Grok 4.7 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 3.8 Flash leads overall 75.99 to 68.
- The clearest category separation is in reasoning, where the averages are 76.9 for Gemini 3.8 Flash and 73.7 for Grok 4.7.
- The biggest single benchmark swing is Terminal-Bench 4.0 in Agentic, with scores of 19.10% and 38.00%.
- Gemini 3.8 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.8 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.8 Flash | Grok 4.7 |
|----------|----------|----------|
| Creator | Google | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 500K |
| Overall Score | 75.99 | null |
| Benchmarks Covered | 21 | 6 |
| Pricing (input/output) | $0.75 / $3.75 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Gemini 3.8 Flash public-lane score: 67.3 (Supported · #10/154)
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| Finance Agent v2 | 61.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 89.4% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 19.10% | 38.00% | Grok 4.7 |
| OSWorld 2.0 | 59.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 81.3% | 76.0% | Gemini 3.8 Flash |
| ApprenticeBench | 24% | Coming soon | Coming soon |

### Coding

- Winner: Coming soon
- Gemini 3.8 Flash public-lane score: 68 (Supported · #8/156)
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 73.8% | 71.0% | Gemini 3.8 Flash |
| Terminal-Bench 2.1 | 89.4% | Coming soon | Coming soon |
| cursorBench32 | 69.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 89.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 80.0% | Coming soon | Coming soon |
| FrontierSWE v2 | 19.6% | Coming soon | Coming soon |
| cursorBench40 | 39.6% | 46.3% | Grok 4.7 |
| EEBench | Coming soon | 64.0% | Coming soon |

### Reasoning

- Winner: Coming soon
- Gemini 3.8 Flash public-lane score: 76.9 (#8/19)
- Grok 4.7 public-lane score: 73.7 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Coming soon
- Gemini 3.8 Flash public-lane score: 82.9 (#8/49)
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv w/o tools | 86.2% | Coming soon | Coming soon |
| LVBench | 87.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Gemini 3.8 Flash public-lane score: 75.5 (Supported · #6/186)
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| HLE-Verified | 54.9% | Coming soon | Coming soon |
| LABBench2 | 86.2% | Coming soon | Coming soon |
| BioMysteryBench (human-solvable) | 88.8% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 56.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 94.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 90.2% | Coming soon | Coming soon |
| HealthBench Professional | Coming soon | 56.7% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.8 Flash or Grok 4.7?

Gemini 3.8 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.8 Flash and Grok 4.7?

The widest category gap is in reasoning, where the averages are 76.9 for Gemini 3.8 Flash and 73.7 for Grok 4.7.

### How many benchmarks does Gemini 3.8 Flash cover on BenchLM?

Gemini 3.8 Flash currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.7 cover on BenchLM?

Grok 4.7 currently has 6 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.8 Flash vs Gemini 3.8 Flash Cyber](/compare/gemini-3-8-flash-vs-gemini-3-8-flash-cyber)
- [Grok 4.7 vs Gemini 3.8 Flash Cyber](/compare/gemini-3-8-flash-cyber-vs-grok-4-7)
- [Gemini 3.8 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-8-flash)
- [Grok 4.7 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-grok-4-7)

## Explore More

- [Gemini 3.8 Flash profile](/models/gemini-3-8-flash)
- [Grok 4.7 profile](/models/grok-4-7)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)