DeepSeek Reasoner
deepseek/deepseek-reasoner
DeepSeek reasoning model for multi-step analysis, math, coding, and tools
Capabilities
ReasoningYes
Tool callingYes
Structured outputNo
TemperatureSupported
AttachmentYes
Open weightsYes
Limits
Context1,000,000 tokens
Max inputN/A
Max output384,000 tokens
Details
Familydeepseek-thinking
Knowledge cutoff2025-09
Release date2025-12-01
Last updated2026-02-28
Modalities
Inputtext
Outputtext
Benchmarks
Aider Polyglot
74.2
percent correct
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A