# DeepSeek V4.1 Flash vs Gemini 3.8 Flash

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and Gemini 3.8 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-gemini-3-8-flash
- Last updated: September 10, 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. DeepSeek V4.1 Flash 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 77.81 to 55.
- The biggest single benchmark swing is Terminal-Bench 4.0 in Agentic, with scores of 31.20% and 19.10%.
- DeepSeek V4.1 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | Gemini 3.8 Flash |
|----------|----------|----------|
| Creator | DeepSeek | Google |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | 77.81 |
| Benchmarks Covered | 21 | 18 |
| Pricing (input/output) | $0.30 / $1.20 | $0.75 / $3.75 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: 66.5 (Supported · #10/152)

| Benchmark | DeepSeek V4.1 Flash | Gemini 3.8 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 89.4% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 31.20% | 19.10% | DeepSeek V4.1 Flash |
| CyberGym | 88.1% | Coming soon | Coming soon |
| ExploitGym | 15.3% | Coming soon | Coming soon |
| HLE w/ tools | 63.9% | Coming soon | Coming soon |
| AutomationBench | 54.8% | Coming soon | Coming soon |
| Agents' Last Exam | 31.8% | Coming soon | Coming soon |
| Finance Agent v2 | Coming soon | 61.4% | Coming soon |
| OSWorld 2.0 | Coming soon | 59.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 81.3% | Coming soon |

### Coding

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: 67.7 (Supported · #7/151)

| Benchmark | DeepSeek V4.1 Flash | Gemini 3.8 Flash | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 89.4% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | 73.8% | DeepSeek V4.1 Flash |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | Coming soon | Coming soon |
| cursorBench32 | Coming soon | 69.2% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 89.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 80.0% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: 82.8 (#8/48)

| Benchmark | DeepSeek V4.1 Flash | Gemini 3.8 Flash | Winner |
|-----------|-----------|-----------|--------|
| Chartography (tools) | 78.9% | Coming soon | Coming soon |
| BabyVision w/ Python | 89.6% | Coming soon | Coming soon |
| ZeroBench w/ Python | 49.0% | Coming soon | Coming soon |
| CharXiv w/o tools | Coming soon | 86.2% | Coming soon |
| LVBench | Coming soon | 87.1% | Coming soon |

### Reasoning

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: 76.9 (#6/18)

### Knowledge

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: 76 (Supported · #6/182)

| Benchmark | DeepSeek V4.1 Flash | Gemini 3.8 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | Coming soon | Coming soon |
| GPQA-D | 90.9% | Coming soon | Coming soon |
| HLE | 36.8% | Coming soon | Coming soon |
| HLE-Verified | Coming soon | 54.9% | Coming soon |
| LABBench2 | Coming soon | 86.2% | Coming soon |
| BioMysteryBench (human-solvable) | Coming soon | 88.8% | Coming soon |
| BioMysteryBench (human-difficult) | Coming soon | 56.5% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 94.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 90.2% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 3.8 Flash public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Gemini 3.8 Flash | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or Gemini 3.8 Flash?

Gemini 3.8 Flash is ahead overall on BenchLM right now.

### How many benchmarks does DeepSeek V4.1 Flash cover on BenchLM?

DeepSeek V4.1 Flash currently has 21 sourced benchmark scores on BenchLM.

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

Gemini 3.8 Flash currently has 18 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4.1 Flash vs Gemini 3.8 Flash Cyber](/compare/deepseek-v4-1-flash-vs-gemini-3-8-flash-cyber)
- [Gemini 3.8 Flash vs Gemini 3.8 Flash Cyber](/compare/gemini-3-8-flash-vs-gemini-3-8-flash-cyber)
- [DeepSeek V4.1 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-deepseek-v4-1-flash)
- [Gemini 3.8 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-8-flash)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [Gemini 3.8 Flash profile](/models/gemini-3-8-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)