# DeepSeek V4.1 Flash vs Gemini 2.5 Pro

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and Gemini 2.5 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-gemini-2-5-pro
- Last updated: September 10, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: DeepSeek V4.1 Flash and Gemini 2.5 Pro share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- DeepSeek V4.1 Flash has the lower published output-token price.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | Gemini 2.5 Pro |
|----------|----------|----------|
| Creator | DeepSeek | Google |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | null | 57.17 |
| Benchmarks Covered | 21 | 7 |
| Pricing (input/output) | $0.30 / $1.20 | $1.25 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 47.8 (Estimated · #69/152)

| Benchmark | DeepSeek V4.1 Flash | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | Coming soon | Coming soon |
| terminalBench3 | 30% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 31.20% | Coming soon | Coming soon |
| 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 |
| Gert Labs | Coming soon | 42.01% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 31.9 (Supported · #134/151)

| Benchmark | DeepSeek V4.1 Flash | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | Coming soon | Coming soon |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | Coming soon | Coming soon |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 63.8% | Coming soon |
| Vibe Code Bench | Coming soon | 0.40% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 70.3 (Unranked · 1 rankable row)

| Benchmark | DeepSeek V4.1 Flash | Gemini 2.5 Pro | 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 |

### Reasoning

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 68.4 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 50.6 (Supported · #81/182)

| Benchmark | DeepSeek V4.1 Flash | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | 83% | DeepSeek V4.1 Flash |
| GPQA-D | 90.9% | Coming soon | Coming soon |
| HLE | 36.8% | 18.8% | DeepSeek V4.1 Flash |

### Instruction Following

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 57.9 (#73/121)

### Mathematics

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 35.2 (Unranked · 2 rankable rows)

| Benchmark | DeepSeek V4.1 Flash | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 14.138% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 4.167% | Coming soon |

## FAQ

### Is there enough evidence to pick between DeepSeek V4.1 Flash and Gemini 2.5 Pro?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [DeepSeek V4.1 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-deepseek-v4-1-flash)
- [Gemini 2.5 Pro vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-2-5-pro)
- [DeepSeek V4.1 Flash vs GPT-6 Astra](/compare/deepseek-v4-1-flash-vs-gpt-6-astra)
- [Gemini 2.5 Pro vs GPT-6 Astra](/compare/gemini-2-5-pro-vs-gpt-6-astra)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [Gemini 2.5 Pro profile](/models/gemini-2-5-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)