DeepSeek V3 vs GPT-5.1-Codex-Mini
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for DeepSeek V3 and GPT-5.1-Codex-Mini.
DeepSeek V3
DeepSeek-V3 is the latest model from the DeepSeek team, building upon the instruction following and coding abilities of the previous versions. Pre-trained on nearly 15 trillion tokens, the reported evaluations...
GPT-5.1-Codex-Mini
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Technical Specifications
| Specification | DeepSeek V3 | GPT-5.1-Codex-Mini |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Context Window | 131,072 tokens | 400,000 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | self hostable | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2024-12-26 | 2025-11-13 |
API Pricing Comparison
Input Price per Million Tokens
DeepSeek V3
$0.20
GPT-5.1-Codex-Mini
$0.25
Output Price per Million Tokens
DeepSeek V3
$0.80
GPT-5.1-Codex-Mini
$2.00
Want to test both models live?
Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
DeepSeek V3 Quirks & Gotchas
No developer gotchas reported.
GPT-5.1-Codex-Mini Quirks & Gotchas
No developer gotchas reported.