Back to SearchSelf-Host vs Cloud API
DeepSeek
DeepSeek V4 Flash 0731
VS
OpenAI
GPT-5.6 Sol
Analysis By: The WhichLLMModel Editorial Team|Updated: June 2026
Self-Hosted Local Rig vs Cloud API Matrix
| Metric / Spec | DeepSeek V4 Flash 0731Open Source | GPT-5.6 SolCloud API |
|---|---|---|
| Pricing Model | $0.00 / token (Free Weights) | $11.25 / 1M Tokens |
| Hardware Needed | 48GB+ VRAM (Multi-GPU) | None (Runs in Cloud) |
| Data Privacy | 100% On-Device / Private | Sent to Cloud Provider |
| Rate Limits & Availability | Zero (Always Available) | Subject to Provider Quotas |
| Context Window | 1.05M | 1.05M |
| Detailed Page | Hardware Details | Model Specs |
Benchmark Parity (Does the Open Model Match the API?)
Coding Benchmark (SWE-bench / HumanEval)
DeepSeek V4 Flash 0731 (Open)54.4%
GPT-5.6 Sol (API)64.6%
Reasoning Benchmark (GPQA / MMLU)
DeepSeek V4 Flash 0731 (Open)N/A%
GPT-5.6 Sol (API)94.6%
Frequently Asked Questions about DeepSeek V4 Flash 0731 vs GPT-5.6 Sol
DeepSeek V4 Flash 0731 is cheaper than GPT-5.6 Sol. DeepSeek V4 Flash 0731 has a blended cost of $0.17/1M tokens, which is about 64.3x cheaper than GPT-5.6 Sol at $11.25/1M tokens.
For coding tasks, DeepSeek V4 Flash 0731 scores 54.4% on deep-swe (frontier deep software engineering and end-to-end repository problem solving), while GPT-5.6 Sol scores 64.6% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning).
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