gpt-5-nano vs DeepSeek-V4-Flash
| OpenAI gpt-5-nano | DeepSeek DeepSeek-V4-Flash | |
|---|---|---|
| Vendor | OpenAI | DeepSeek |
| Context window | 400,000 | 1,000,000 |
| Max output | 128,000 | 384,000 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image | text |
| Output | text | text |
| Released | 2025-08-07 | 2026-04-23 |