First party
DeepSeek
DeepSeek is a First party provider with 4 models across 4 offerings.
Access
- API base URL
- https://api.deepseek.com
- SDK
- @ai-sdk/openai-compatible
- Environment variables
- DEEPSEEK_API_KEY
Models
4 of 4 model versions
| Model | Organization | Family | Provider model ID | Protocol | Streaming | Context | Max output | Input | Output | Reasoning | Tool call | Structured | Temperature | Weights | Pricing | Released | Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DeepSeek V4 Flash deepseek/deepseek-v4-flash | DeepSeek | DeepSeek | deepseek-v4-flash | Custom | Yes | 1M | 384K | Text | Text | Yes | Yes | Yes | Yes | Open weight | input $0.14/M · cache read $0.0028/M output $0.28/M | 2026-04-24 | 2026-07-31 | |
| DeepSeek V4 Pro deepseek/deepseek-v4-pro | DeepSeek | DeepSeek | deepseek-v4-pro | Custom | Yes | 1M | 384K | Text | Text | Yes | Yes | Yes | Yes | Open weight | input $0.435/M · cache read $0.003625/M output $0.87/M | 2026-04-24 | 2026-07-22 | |
| DeepSeek Chat deepseek/deepseek-chat | DeepSeek | DeepSeek | deepseek-chat | Custom | Yes | 1M | 384K | Text | Text | -No | Yes | -No | Yes | Open weight | input $0.14/M · cache read $0.0028/M output $0.28/M | 2025-12-01 | 2026-02-28 | |
| DeepSeek Reasoner deepseek/deepseek-reasoner | DeepSeek | DeepSeek | deepseek-reasoner | Custom | Yes | 1M | 384K | Text | Text | Yes | Yes | -No | Yes | Open weight | input $0.14/M · cache read $0.0028/M output $0.28/M | 2025-12-01 | 2026-02-28 |