Blaxel (YC X25) — The infrastructure for autonomous agents
Blaxel is the infrastructure foundation for autonomous agents. Engineered for the way agents actually run, Blaxel gives builders deep control over compute (sandboxes), storage (shared filesystem), and networking as built-in infra primitives.
Blaxel is a Y Combinator company in the Spring 2025 batch. Its directory entry describes it as: The infrastructure for autonomous agents. The founders listed are Paul Sinaï (Founder/CEO), Charles Drappier (Founder), Mathis Joffre (Founder) (Y Combinator directory entry, April 21, 2025).
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Blaxel is the infrastructure foundation for autonomous agents.
Engineered for the way agents actually run, Blaxel gives builders deep control over compute (sandboxes), storage (shared filesystem), and networking as built-in infra primitives.
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.
Paul Sinaï
Founder/CEO
Charles Drappier
Founder
Mathis Joffre
Founder
Nicolas Lecomte
Founder
Christophe Ploujoux
Founder/CTO
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
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What the Full Report on Blaxel covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
1 cited source found
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