DeepSeek
Canonical page on the main site: sinoaihub.com/companies/deepseek
Type
company
Definition
DeepSeek is a Chinese AI company (also 深度求索) developing 2 foundation models and operating the DeepSeek API.
Key facts
- Headquarters: Hangzhou, Zhejiang, China (derived from the official footer company name 杭州深度求索人工智能基础技术研究有限公司 and Zhejiang ICP / Hangzhou public-security filings; the official pages fetched do not print a headquarters line verbatim)
- Funding: No external funding officially disclosed as of 2026-09-22 (media-reported rounds are not confirmed on official channels).
- Foundation models: DeepSeek-V4.1-Flash, DeepSeek-V4-Pro
- Agents: DeepSeek Harness
- API: DeepSeek API
- Open-source: 10 projects
Aliases
- 深度求索
Headquarters
Hangzhou, Zhejiang, China (derived from the official footer company name 杭州深度求索人工智能基础技术研究有限公司 and Zhejiang ICP / Hangzhou public-security filings; the official pages fetched do not print a headquarters line verbatim)
Funding
No external funding officially disclosed as of 2026-09-22 (media-reported rounds are not confirmed on official channels).
Ai Products
- DeepSeek Chat (web and mobile assistant)
- DeepSeek API platform
- DeepSeek Harness (developer preview)
Foundation Models
Open Models
Agents
API
Major Releases
| name | date | type |
|---|---|---|
| DeepSeek-V4.1-Flash | 2026-09-10 | model_release |
| DeepSeek-V4-Pro GA (0813) | 2026-08-13 | model_release |
| DeepSeek-V4 Preview | 2026-04-24 | model_release |
| DeepSeek-V3.2 | 2025-12-01 | model_release |
Timeline
| date | event | type | source | verification_date |
|---|---|---|---|---|
| 2025-09-29 | V3.2-Exp release — introduced DeepSeek Sparse Attention; API prices cut by more than 50% | model_release | https://sinoaihub.com/research/how-deepseek-changed-chinas-ai-market | 2026-09-20 |
| 2025-12-01 | DeepSeek-V3.2 release (MIT) | model_release | https://www.deepseek.com/en/news/deepseek-v3-2/ | 2026-09-20 |
| 2026-04-24 | DeepSeek-V4 Preview release (MIT open weights) | model_release | https://www.deepseek.com/en/news/v4-preview/ | 2026-09-20 |
| 2026-08-13 | DeepSeek-V4-Pro GA (0813) | model_release | https://api-docs.deepseek.com/updates | 2026-09-20 |
| 2026-08-16 | Peak/off-peak pricing introduced (peak = 2x off-peak) | pricing_change | https://api-docs.deepseek.com/updates | 2026-09-20 |
| 2026-09-10 | DeepSeek-V4.1-Flash release (multimodal, MIT); V4-Pro retirement reversed | model_release | https://www.deepseek.com/en/news/deepseek-v4-1-flash/ | 2026-09-20 |
Open Source Projects
- DeepSeek-V4.1-Flash (MIT)
- DeepSeek-V4-Pro (MIT)
- DeepSeek-V4-Flash (MIT)
- DeepSeek-V3.2 (MIT)
- DeepSeek-R1 (MIT)
- DeepSeek-OCR / DeepSeek-OCR-2
- DeepEP
- FlashMLA
- DeepGEMM
- 3FS
Official Documentation
https://api-docs.deepseek.com/
Official Website
https://www.deepseek.com/
Verification Status
verified
Last Verified
2026-09-20
Sources
| evidence_id | source_name | source_url | source_type | published | verified | confidence | conflict |
|---|---|---|---|---|---|---|---|
| src-companies-deepseek-1 | DeepSeek API docs — Models & Pricing | https://api-docs.deepseek.com/quick_start/pricing | Official documentation | — | 2026-09-20 | high | — |
| src-companies-deepseek-2 | DeepSeek API Change Log | https://api-docs.deepseek.com/updates | Official documentation | — | 2026-09-20 | high | — |
| src-companies-deepseek-3 | DeepSeek official site (EN) | https://www.deepseek.com/en/ | Official | — | 2026-09-20 | high | — |
| src-companies-deepseek-4 | DeepSeek Transparency Center | https://www.deepseek.com/en/transparency/ | Official | — | 2026-09-20 | high | — |