# DeepSeek V4.1 Flash vs GPT-6 Sol

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and GPT-6 Sol across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-gpt-6-sol
- Last updated: September 22, 2026

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

## Quick Verdict

Pick GPT-6 Sol 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

- GPT-6 Sol leads overall 80.45 to 66.
- The clearest category separation is in multimodal & grounded, where the averages are 73.5 for DeepSeek V4.1 Flash and 82.8 for GPT-6 Sol.
- The biggest single benchmark swing is Agents' Last Exam in Agentic, with scores of 31.8% and 56.4%.
- DeepSeek V4.1 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-6 Sol also has the larger context window at 1.05M.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | GPT-6 Sol |
|----------|----------|----------|
| Creator | DeepSeek | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | null | 80.45 |
| Benchmarks Covered | 22 | 10 |
| Pricing (input/output) | $0.30 / $1.20 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GPT-6 Sol public-lane score: 69.7 (Estimated · #7/157)

| Benchmark | DeepSeek V4.1 Flash | GPT-6 Sol | 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% | 22.1% | GPT-6 Sol |
| HLE w/ tools | 63.9% | Coming soon | Coming soon |
| AutomationBench | 54.8% | 33.2% | DeepSeek V4.1 Flash |
| Agents' Last Exam | 31.8% | 56.4% | GPT-6 Sol |
| Terminal-Bench 2.1 (Vals) | 74.5% | Coming soon | Coming soon |
| OSWorld 2.0 | Coming soon | 60.5% | Coming soon |

### Coding

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GPT-6 Sol public-lane score: 74.3 (Estimated · #6/159)

| Benchmark | DeepSeek V4.1 Flash | GPT-6 Sol | 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% | 68.8% | DeepSeek V4.1 Flash |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: 78.5 (Unranked · 2 rankable rows)
- GPT-6 Sol public-lane score: 78.5 (#5/17)

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: 73.5 (Unranked · 1 rankable row)
- GPT-6 Sol public-lane score: 82.8 (Unranked · 1 rankable row)

| Benchmark | DeepSeek V4.1 Flash | GPT-6 Sol | 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 |

### Knowledge

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GPT-6 Sol public-lane score: 80.2 (Estimated · #6/189)

| Benchmark | DeepSeek V4.1 Flash | GPT-6 Sol | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | Coming soon | Coming soon |
| GPQA-D | 90.9% | Coming soon | Coming soon |
| HLE | 36.8% | Coming soon | Coming soon |
| HealthBench (raw) | Coming soon | 47.1% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 53.2% | Coming soon |
| HealthBench Professional | Coming soon | 60.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 59.5% | Coming soon |
| HealthBench Hard | Coming soon | 30.1% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GPT-6 Sol public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | GPT-6 Sol | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or GPT-6 Sol?

GPT-6 Sol is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V4.1 Flash and GPT-6 Sol?

The widest category gap is in multimodal & grounded, where the averages are 73.5 for DeepSeek V4.1 Flash and 82.8 for GPT-6 Sol.

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

DeepSeek V4.1 Flash currently has 22 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-6 Sol cover on BenchLM?

GPT-6 Sol currently has 10 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4.1 Flash vs GPT-6 Astra](/compare/deepseek-v4-1-flash-vs-gpt-6-astra)
- [GPT-6 Sol vs GPT-6 Astra](/compare/gpt-6-astra-vs-gpt-6-sol)
- [DeepSeek V4.1 Flash vs GPT-6 Luna](/compare/deepseek-v4-1-flash-vs-gpt-6-luna)
- [GPT-6 Sol vs GPT-6 Luna](/compare/gpt-6-luna-vs-gpt-6-sol)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [GPT-6 Sol profile](/models/gpt-6-sol)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)