DeepSeek V4.1 Flash vs GPT-6 Sol
A direct, empirical evaluation of DeepSeek V4.1 Flash (DeepSeek-AI) against GPT-6 Sol (OpenAI).
DeepSeek V4.1 Flash
Developed by DeepSeek-AI · 552B parameters
High-throughput software engineering, autonomous coding loops, terminal agents, 1M long-context retrieval, and low-cost production inference.
GPT-6 Sol
Developed by OpenAI · Proprietary Frontier Workhorse parameters
High-efficiency agentic software development, OSWorld computer use, repository refactoring, and enterprise workflow execution at 80% lower cost per task than Claude Opus.
| Metric | DeepSeek V4.1 Flash | GPT-6 Sol |
|---|---|---|
| SWE-bench Verified | 67.2% | 68.8% |
| MMLU-Pro | 78.4% | 90.8% |
| MATH-500 | 92.6% | 96.4% |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $0.06 | $2.00 |
| Output Pricing (per 1M) | $0.22 | $10.00 |