Claims and evidence
- Released Primary source[1]page header 2025/12/01 [3]Date: 2025-12-01 [4]Model Overview [2]General Information: Release date
- Status AvailableWeights are still public on DeepSeek's Hugging Face organisation under the MIT License. In the DeepSeek API, deepseek-chat and deepseek-reasoner were routed to deepseek-v4-flash from 2026-04-24, and DeepSeek announced that both names would be discontinued on 2026-07-24. Primary source[5]License [2]Methods of distribution and licenses [3]Date: 2026-04-24
- Successor of DeepSeek-V3.2-ExpDeepSeek calls DeepSeek-V3.2 the official successor to V3.2-Exp. Primary source[1] [3]Date: 2025-12-01
- Change · Tool use Integrates thinking directly into tool use, which DeepSeek says is a first for its models, and supports tool use in both thinking and non-thinking modes.Compared with DeepSeek-V3.2-Exp Primary source[1]Thinking in Tool-Use
- Change · Training data Trained with synthesised agent data that DeepSeek says covers more than 1,800 environments and 85,000 complex instructions.Compared with DeepSeek-V3.2-Exp Primary source[1]
- Change · Other New chat template with a revised tool-calling format and a developer role reserved for search-agent use.Compared with DeepSeek-V3.2-Exp Primary source[5]Chat Template
- Input text Primary source[2]Model properties: Modalities
- Output text Primary source[2]Model properties: Modalities
- Feature Reasoning modeThinking and non-thinking modes, served as deepseek-reasoner and deepseek-chat. Primary source[3]Date: 2025-12-01 [1]
- Feature Tool useTool use in both thinking and non-thinking modes, including thinking inside tool use. Primary source[1]Thinking in Tool-Use [5]Chat Template
- Open weights YesMIT License for the repository and the weights. Primary source[1]Open Source Release [5]License [2]Methods of distribution and licenses
- Context window 128K tokens Primary source[2]Model properties: Context length [6]section 4.1
- Parameters 671B parameters, of which 37B are activated for each token Primary source[2]Model properties: Total model size
- Access API, consumer app, Open-weights download Primary source[1] [2]Methods of distribution and licenses
Lineage
Predecessors
- DeepSeek-V3.2-Exp · 29 September 2025
Successors
- DeepSeek-V4-Flash · 24 April 2026
- DeepSeek-V4-Pro · 24 April 2026
Based on
Not derived from another model.
Variants and derived
- DeepSeek-V3.2-Speciale · 1 December 2025 · variant
Siblings
None recorded.
All ancestors
- DeepSeek LLM · 29 November 2023
- DeepSeek-V2 · 6 May 2024
- DeepSeek-V2-Chat-0628 · 28 June 2024
- DeepSeek-V2.5 · 5 September 2024
- DeepSeek-V2.5-1210 · 10 December 2024
- DeepSeek-V3 · 26 December 2024
- DeepSeek-V3-0324 · 24 March 2025
- DeepSeek-V3.1 · 21 August 2025
- DeepSeek-V3.1-Terminus · 22 September 2025
- DeepSeek-V3.2-Exp · 29 September 2025
All descendants
- DeepSeek-V3.2-Speciale · 1 December 2025
- DeepSeek-V4-Flash · 24 April 2026
- DeepSeek-V4-Pro · 24 April 2026
- DeepSeek-V4-Flash-0731 · 31 July 2026
- DeepSeek-V4-Pro-0813 · 13 August 2026
- DeepSeek-V4-Flash-Vision-Exp · 21 August 2026
- DeepSeek-V4.1-Flash · 10 September 2026
Variants
No variants recorded in this record.
Related AI Radar coverage
AI Radar coverage starts in June 2026; no coverage linked yet.