DeepSeek Reasoner

Current DeepSeek reasoning family with larger default/max output and tool support.

Pricing

Model Overview

Tracked token-pricing fields for this model family. Empty pricing fields stay hidden until the source publishes them.

Surface

Input and output modalities, enabled feature flags, strengths, and tradeoffs.

Model capabilities
Attribute	Values
Modalities	text to text
Capabilities	reasoningbatchSupportpromptCachingfunctionCallingstructuredOutputs
Strengths	Large output budget, Lower-priced reasoning
Tradeoffs	Text-only

References

Canonical launch, documentation, pricing, and release-note URLs.

Official model links
Reference	URL
Intro	https://api-docs.deepseek.com/news/news250120
Docs	https://api-docs.deepseek.com/
Pricing	https://api-docs.deepseek.com/quick_start/pricing/
Release note	https://api-docs.deepseek.com/updates/

Coverage

Reported benchmark families, versions, scores, sources, and notes.

Benchmark coverage
Benchmark	Version	Score	Date	Source	Notes

Lifecycle

Lifecycle transitions and release timeline for this model family.

Release history
Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
DeepSeek Reasoner	deepseek-reasoner	Active	Dec 1, 2025	—	—	Current published model family snapshot.

Surfaces

Provider-specific hosting, context, pricing notes, feature differences, and provider-status context.

Host coverage
Host	Type	Context	Pricing Note	Differences
DeepSeek API	first-party	128.0K	Reference pricing and V3.2 mapping.	Thinking mode; Tool calls

Migration

Documented migration summary, successor families, and known breaking changes.

Migration guidance
Topic	Details
Summary	Reasoning-tier sibling to DeepSeek chat for harder problems.
Replacement models	deepseek-v3

Timeline

Cataloged model-family updates and source references.

Change events
Date	Type	Title	Description	Source
Jan 20, 2025	family_added	DeepSeek Reasoner published	Initial public model family launch.	DeepSeek Reasoner release notes

From DeepSeek