Blaxel
Blaxel is a YC Spring 2025 (P25) company. Based in San Francisco, CA, USA. Team of 8.
About Blaxel
Summary
Blaxel builds cloud infrastructure for AI agents that execute code inside isolated sandboxes. It replaces traditional sandbox providers that impose cold-start delays and expiration limits by keeping microVM sandboxes suspended indefinitely, resuming them in under 25ms with memory state intact. Agent logic runs co-located with those sandboxes, cutting the network round-trips that add latency between an agent and the code it runs.
Business model
Free tier to start, with usage-based charges on compute, storage, and networking resources.
Go-to-market
Developer and engineering teams building AI agents adopt the platform self-serve, starting from a free sandbox with SDKs available in Python, TypeScript, and Go.
From the Y Combinator listing
The perpetual sandbox platform
Blaxel is the perpetual sandbox platform for AI agents that need to run code fast. Unlike traditional sandboxes that expire or suffer from cold starts, our sandboxes automatically scale to zero after 1s of inactivity and resume in under 25ms with full memory state preserved — allowing you to keep millions of secure sandboxes on standby indefinitely. We also co-locate your agent logic alongside these sandboxes to eliminate network overhead, delivering near-instant latency for end users.
Facts
- B2B / B2B
- San Francisco, CA, USA
- 8
- Active
- Early
Founders (6)
- Charles Drappier
- Christophe Ploujoux
- Mathis Joffre
- Paul Sinaï
- Thomas Crochet
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