Open frontier models · San Francisco, US · founded 2024
Prime Intellect: who founded it, who funds it
Prime Intellect is a San Francisco open-weight AI lab founded in 2024 by Vincent Weisser and Johannes Hagemann. What it is building: the open superintelligence stack: decentralised training, INTELLECT open models and an RL toolchain for enterprises. It has raised $145M in disclosed rounds, most recently a Series A of $130M at a $1B valuation in July 2026, led by Radical Ventures. It releases open-weight models.
- Founders
- Vincent Weisser, Johannes Hagemann
- Founders from
- ·
- Location
- San Francisco, US (North America)
- Valuation
- $1B set by the last priced round
- Raised
- $145M disclosed
- Investors
- Founders Fund lead, Menlo Ventures, Radical Ventures lead
- What ships
- Open model
Rounds
| Date | Round | Amount | Valuation | Lead | Source |
|---|---|---|---|---|---|
| Jul 8, 2026 | Series A | $130M | $1B | Radical Ventures | techcrunch.com |
| Feb 28, 2025 | Seed | $15M | · | Founders Fund | primeintellect.ai |
Sources
- FinSMEs finsmes.com
News
- Oct 2, 2026
-
Aug 6, 2026
+1 more coverage
- TestingCatalog AI News ICYMI: Prime Intellect releases open-source Prime Agent
- Jul 23, 2026
-
Jul 14, 2026
-
Jul 10, 2026
-
Jul 8, 2026
+4 more coverage
- Axios Prime Intellect's $1b valuation, Ardian's HR software stake, and Paradigm's new fund
- Cooley Prime Intellect Raises $130 Million Series A
- PYMNTS.com Prime Intellect Raises $130 Million to Help Companies Train AI Agents
- Pulse 2.0 Prime Intellect Raises $130 Million Series A To Build Open Superintelligence Stack
-
Feb 28, 2025
Investors who back other labs here
- Radical Ventures also: World Labs, Decart, Generalist AI, Inherent
- Menlo Ventures also: Skild AI, Inception Labs
- Founders Fund also: Cognition
Same research area
- Reflection AI $25B · New York, US
- Applied Compute $3.25B · San Francisco, US
- Nous Research $1.5B · New York, US
- Essential AI $1B · San Francisco, US
- DeepSeek $52B · Hangzhou, CN
- Mistral AI $14B · Paris, FR