DeepSeek
Featured
Chat & Assistants
DeepSeek
FreeOpen SourceAPI
About
Open-source LLM by DeepSeek with strong reasoning capabilities and excellent cost efficiency
Key Features
DeepSeek-V4 open-source LLM
DeepSeek-R2 advanced reasoning
1T+ parameters
MoE architecture efficient inference
Code and math reasoning
Highly competitive API pricing
Pricing
free
Free web version
api
V4 base $0.27/M input tokens
api-output
V4 base $0.55/M output tokens
flash
V4 Flash (284B MoE) low-cost tier
Use Cases
Code development and debugging
Math problem solving
Logical reasoning tasks
Content creation
Academic research
Enterprise integration
Pros
Open-source, local deployment
Strong reasoning capabilities
Extremely low API pricing
Excellent Chinese understanding
Cons
Limited multimodal capabilities
Ecosystem not as mature
International recognition growing
Latest Update
2026: DeepSeek-V4 lineup (1T base, V4 Pro, and efficient V4 Flash) plus DeepSeek-R2 reasoning, with permanent price cuts
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