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DeepSeek

DeepSeek R1

frontierOpen Source

DeepSeek

DeepSeek's open-source reasoning model. Matches o1-level math and coding with full transparency — the thinking chain is visible in the output.

Official page
open-sourcereasoningmath
Context
64K
Input / 1M
$0.55
Output / 1M
$2.19
Knowledge cutoff
2024-07

Capabilities

Code5/5
Reasoning5/5
Multilingual3/5
Safety2/5
Speed2/5

Modalities & Features

Vision (image input) No
Audio No
Video No
Function / tool calling No
JSON mode Yes
Extended thinking Yes

Context & Output

Context window64K
Max output tokens32.768K
Knowledge cutoff2024-07
Release date2025-01

API & Access

Open source Yes
Streaming Yes
Batch API No
Prompt caching Yes
Fine-tuning No

Pricing (per 1M tokens)

Input$0.55
Output$2.19
Consumer plan
DeepSeek Chat
Free
Prices shown are list prices and may vary by provider plan. Always check official documentation for the latest pricing.