SFAI / MODEL PROFILE
DeepSeek: R1 0528 (deepseek/deepseek-r1-0528)
May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active...
- Developer
- deepseek
- Input modalities
- text
- Output modalities
- text
- Context tokens
- 163,840
- Latest price observation
- 2026-09-28
- Lowest paired standard token quote
- $0.50 input / $2.15 output per 1M tokens
Dated price and provider records
| Provider and channel | Input | Output or native rate | Unit and status | Source and observation |
|---|---|---|---|---|
| Automatic routingopenrouter | $0.50 | $2.15 | 1M tokenspriced · USD | openrouter2026-09-28 |
These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.