# DeepSeek V4 Pro 0813 vs Gemini 3.5 Flash

> Side-by-side benchmark comparison for DeepSeek V4 Pro 0813 and Gemini 3.5 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-pro-0813-vs-gemini-3-5-flash
- Last updated: September 4, 2026

- Shared sourced benchmarks: 14
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Gemini 3.5 Flash if you want the stronger benchmark profile. DeepSeek V4 Pro 0813 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 3.5 Flash leads overall 70 to 66.35.
- The clearest category separation is in mathematics, where the averages are 80.4 for DeepSeek V4 Pro 0813 and 55.2 for Gemini 3.5 Flash.
- The biggest single benchmark swing is MRCR 1M in Reasoning, with scores of 83.5% and 26.6%.
- DeepSeek V4 Pro 0813 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash |
|----------|----------|----------|
| Creator | DeepSeek | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 66.35 | 70 |
| Benchmarks Covered | 39 | 27 |
| Pricing (input/output) | $0.435 / $0.87 | $1.50 / $9.00 |

## Category Breakdown

### Agentic

- Winner: DeepSeek V4 Pro 0813
- DeepSeek V4 Pro 0813 public-lane score: 56.1 (Supported · #37/151)
- Gemini 3.5 Flash public-lane score: 50.6 (Supported · #61/151)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 67.9% | 76.2% | Gemini 3.5 Flash |
| Terminal-Bench 2.1 | 87.9% | Coming soon | Coming soon |
| BrowseComp | 83.4% | Coming soon | Coming soon |
| HLE w/ tools | 60.0% | Coming soon | Coming soon |
| MCP Atlas | 73.6% | 83.6% | Gemini 3.5 Flash |
| Toolathlon | 51.8% | 56.5% | Gemini 3.5 Flash |
| CyberGym | 83.3% | Coming soon | Coming soon |
| Toolathlon-Verified | 74.1% | Coming soon | Coming soon |
| Agents' Last Exam | 25.7% | Coming soon | Coming soon |
| AutomationBench | 31.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 54.7% | 74.2% | Gemini 3.5 Flash |
| OSWorld-Verified | Coming soon | 78.4% | Coming soon |
| Finance Agent v2 | Coming soon | 57.9% | Coming soon |
| Gert Labs | Coming soon | 61.85% | Coming soon |
| ResearchClawBench | Coming soon | 18.0% | Coming soon |

### Coding

- Winner: Gemini 3.5 Flash
- DeepSeek V4 Pro 0813 public-lane score: 52.2 (Supported · #58/183)
- Gemini 3.5 Flash public-lane score: 57.7 (Supported · #34/183)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pass@1-COT | 93.5% | Coming soon | Coming soon |
| Codeforces | 3206.0 | Coming soon | Coming soon |
| SWE-bench Verified | 80.6% | Coming soon | Coming soon |
| SWE-bench Pro | 55.4% | 55.1% | DeepSeek V4 Pro 0813 |
| SWE Multilingual | 76.2% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 67.9% | 76.2% | Gemini 3.5 Flash |
| Vibe Code Bench | 49.93% | 48.68% | DeepSeek V4 Pro 0813 |
| Terminal-Bench 2.1 | 87.9% | Coming soon | Coming soon |
| NL2Repo | 61.5% | Coming soon | Coming soon |
| deepSwe | 62.7% | Coming soon | Coming soon |
| DSBench-FullStack | 71.1% | Coming soon | Coming soon |
| DSBench-Hard | 67.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.5% | 87.6% | Gemini 3.5 Flash |
| SWE-bench (Vals) | 96.4% | 78.8% | DeepSeek V4 Pro 0813 |
| cursorBench31 | Coming soon | 49.8% | Coming soon |
| cursorBench32 | Coming soon | 48.8% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 86.9 (#6/48)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 84.2% | Coming soon |
| MMMU-Pro | Coming soon | 83.6% | Coming soon |
| Blueprint-Bench 2 | Coming soon | 33.6% | Coming soon |

### Reasoning

- Winner: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 58.7 (#18/22)
- Gemini 3.5 Flash public-lane score: 60.3 (#17/22)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| MRCR 1M | 83.5% | 26.6% | DeepSeek V4 Pro 0813 |
| CorpusQA 1M | 62.0% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 77.3% | Coming soon |
| ARC-AGI-2 | Coming soon | 72.1% | Coming soon |

### Knowledge

- Winner: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 60.9 (Estimated · #37/181)
- Gemini 3.5 Flash public-lane score: 68.5 (Supported · #19/181)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 87.5% | Coming soon | Coming soon |
| SimpleQA | 57.9% | Coming soon | Coming soon |
| Chinese-SimpleQA | 84.4% | Coming soon | Coming soon |
| GPQA | 90.1% | Coming soon | Coming soon |
| GPQA-D | 90.1% | 92.7% | Gemini 3.5 Flash |
| HLE | 42.7% | 40.2% | DeepSeek V4 Pro 0813 |
| GPQA Diamond (Vals) | 92.4% | 92.7% | Gemini 3.5 Flash |
| MMLU-Pro (Vals) | 87.0% | 89.5% | Gemini 3.5 Flash |

### Instruction Following

- Winner: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 86.9 (#34/120)

### Mathematics

- Winner: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 80.4 (Unranked · 4 rankable rows)
- Gemini 3.5 Flash public-lane score: 55.2 (Unranked · 2 rankable rows)

| Benchmark | DeepSeek V4 Pro 0813 | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | 95.2% | Coming soon | Coming soon |
| IMOAnswerBench | 89.8% | Coming soon | Coming soon |
| Apex | 38.3% | Coming soon | Coming soon |
| Apex Shortlist | 90.2% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 38.966% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.583% | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4 Pro 0813 or Gemini 3.5 Flash?

Gemini 3.5 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V4 Pro 0813 and Gemini 3.5 Flash?

The widest category gap is in mathematics, where the averages are 80.4 for DeepSeek V4 Pro 0813 and 55.2 for Gemini 3.5 Flash.

### How many benchmarks does DeepSeek V4 Pro 0813 cover on BenchLM?

DeepSeek V4 Pro 0813 currently has 39 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemini 3.5 Flash cover on BenchLM?

Gemini 3.5 Flash currently has 27 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4 Pro 0813 vs Gemini 3.5 Flash Cyber](/compare/deepseek-v4-pro-0813-vs-gemini-3-5-flash-cyber)
- [Gemini 3.5 Flash vs Gemini 3.5 Flash Cyber](/compare/gemini-3-5-flash-vs-gemini-3-5-flash-cyber)
- [DeepSeek V4 Pro 0813 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-deepseek-v4-pro-0813)
- [Gemini 3.5 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-5-flash)

## Explore More

- [DeepSeek V4 Pro 0813 profile](/models/deepseek-v4-pro-0813)
- [Gemini 3.5 Flash profile](/models/gemini-3-5-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)