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DeepSeek Reasoner

DeepSeekOpen weights

DeepSeek Reasoner by DeepSeek costs $0.14 per 1M input tokens and $0.28 per 1M output tokens, with a 1M-token context window.

Pricing

Input (per 1M tokens)
$0.14
Output (per 1M tokens)
$0.28
Cached input (per 1M)
$0.00

Specifications

Provider
DeepSeek
Context window
1M tokens
Parameters
—
Released
Dec 2025
Open weights
Yes
Frontier model
No

Benchmarks

GPQA Diamond
83.4

Compare DeepSeek Reasoner with…

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FAQ

How much does DeepSeek Reasoner cost?

DeepSeek Reasoner is priced at $0.14 per 1M input tokens and $0.28 per 1M output tokens. Output tokens cost more than input.

What is DeepSeek Reasoner's context window?

DeepSeek Reasoner supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.

Is DeepSeek Reasoner open weight?

Yes — DeepSeek Reasoner has openly available weights.

Data as of 2026-06-28. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.