How much does deepseek-reasoner:free cost per 1M tokens?

Input is priced at $0.00 per 1M tokens, output at $0.00 per 1M tokens. Billing is per token, no rounding to batch sizes.

How do I access deepseek-reasoner:free via API?

Send requests to the UnoRouter /v1/chat/completions endpoint with model=deepseek-reasoner:free. Any OpenAI-compatible client library works. Authentication uses a standard Bearer token.

What is the context window of deepseek-reasoner:free?

deepseek-reasoner:free supports a context window of 128K tokens, shared between your prompt and the model's response.

DeepSeek: deepseek-reasoner:free

Name: deepseek-reasoner:free
Brand: DeepSeek

deepseek-reasoner:free

128K context65.5K outReasoningToolsFilesCacheStructuredStreamingSystem msg

Released Jan 20, 2025Knowledge cutoff 2024Updated Jan 20, 2025

deepseek-reasoner is the specialized reasoning API alias from DeepSeek, designed to tackle complex logic, mathematics, programming, and long-horizon planning. Unlike the conversation-oriented deepseek-chat, it mandates the generation of a Chain of Thought (CoT) before delivering the final answer. As of early 2026, this endpoint primarily powers the DeepSeek-R1 flagship, refined through massive Reinforcement Learning (RL). Rivaling OpenAI o1/o3 in benchmarks like AIME and Codeforces, it features an "autonomous reflection" mechanism to self-correct reasoning errors. It is the premier choice for building R&D automation, scientific computing, and high-complexity AI agents.

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