DeepSeek API Model Specifications

Model Comparison

Important Notes

1. Model Versions

   • deepseek-chat corresponds to DeepSeek-V3
   • deepseek-reasoner corresponds to DeepSeek-R1

2. Chain of Thought (CoT)

   • CoT represents the reasoning process generated by deepseek-reasoner before producing the final answer
   • These intermediate reasoning steps are included in the token count and pricing

3. Token Management

   • Default maximum output length is 4K tokens if max_tokens is not specified
   • Adjust max_tokens parameter as needed for longer outputs

4. Pricing Structure

   • For deepseek-reasoner, both CoT tokens and final answer tokens are counted and priced at the same rate
   • Pricing is calculated based on the total token count including all reasoning steps
   • This is a temporary pricing. The pricing will only go DOWN for the time being.

Additional Resources

For comprehensive API documentation and advanced feature's user guide, please visit Deepseek Official API guide.