← All models
DeepSeek · Language model
R1 0528
deepseek/deepseek-r1-0528- Language
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...
Specifications
- Context window
- 163,840 tokens
- Max output
- 32,768 tokens
- Input
- text
- Output
- text
- Reasoning
- always on
- Tokenizer
- DeepSeek
- Knowledge cutoff
- 2025-03-31
Supported parameters
Accepted by the model and forwarded as-is by the gateway.
- frequency_penalty
- logit_bias
- logprobs
- max_tokens
- min_p
- presence_penalty
- reasoning
- repetition_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_k
- top_logprobs
- top_p
Use it
POST /api/v1/chat/completions · MCP chat · full reference
curl https://omnirail.org/api/v1/chat/completions \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"deepseek/deepseek-r1-0528","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'