DeepSeek R1
DeepSeek R1 specialises in transparent step-by-step reasoning. It is built on the V3 backbone and is famous for matching frontier-tier models on math and coding while being open-weight.
Key features
DeepSeek R1 · AI Models
Context window
128K tokens
Released
2025
Pricing
Open weights
Key features
- Visible chain-of-thought ("thinking") output.
- Strong math and coding benchmarks.
- Open weights for self-hosting.
- Cost-effective via Together.ai and other providers.
Best for
Pick DeepSeek R1 when you want a transparent, open-weight reasoning model — perfect for math, code-debugging and self-hosted research workloads.
Frequently Asked Questions
Is DeepSeek R1 open-source?
DeepSeek R1 weights are openly published, allowing you to run R1 yourself or fine-tune it for your domain.
Open Chat
DeepSeek R1 specialises in transparent step-by-step reasoning. It is built on the V3 backbone and is famous for matching frontier-tier models on math and coding while being open-weight.