UltraGPT
DeepSeek: R1
DeepSeek R1 is here: 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 in an inference pass....
Intelligence overview
64K tok
Context window
16K tok
Max output
What DeepSeek: R1 can do.
Reasoning
Extended reasoning
Works through problems step by step before answering, trading latency for accuracy on harder tasks.
Development
Tool calling
Calls external functions mid-response, then continues reasoning from the result.
Structured output
Returns responses constrained to a JSON schema, ready to parse without cleanup.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Performance
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$0.7 / 1M tok
$2.5 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to run and verify tool calls and return structured, parseable output.
Think
Works through multi-step problems with extended reasoning before it answers.
Automate
Chains tool calls across multi-step workflows, reasoning between each one.
Ask DeepSeek: R1 anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How DeepSeek: R1 stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 64K tokens
- Max output
- 16K tokens
- Input modalities
- Text
- Output modalities
- Text
- Knowledge cutoff
- Jul 31, 2024
- Release date
- Jan 20, 2025
- Streaming
- Supported
- Tool calling
- Supported
- JSON mode
- Supported
More from DeepSeek, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.