# Bespoke Labs Raises $40M to Scale AI Agent Infrastructure

> Bespoke Labs has raised 40 million dollars to tackle one of the least glamorous but most important problems in AI agents: making them reliable. The total spans a 31.75 million dollar Series A led by Wing VC, with Mayfield and angels from Anthropic, OpenAI, and Meta, plus an 8.25 million dollar seed from 8VC that drew in Google DeepMind's Jeff Dean. The platform automates the creation of reinforcement-learning environments and tunes model quality, with a sandboxing layer built to keep latency low. Its team also maintains open-source work like the GEPA prompt-optimization tool and the OpenThoughts dataset, and it trains agents inside simulated workstations and GitHub repos. As companies push agents into production, this kind of testing and post-training infrastructure is quietly becoming essential plumbing.

_Section: [AI Funding Tracker](https://www.wortins.com/funding) · Source: SiliconANGLE · Published Thursday, July 9, 2026_

## Wortins' read

Bespoke Labs has raised 40 million dollars to tackle one of the least glamorous but most important problems in AI agents: making them reliable. The total spans a 31.75 million dollar Series A led by Wing VC, with Mayfield and angels from Anthropic, OpenAI, and Meta, plus an 8.25 million dollar seed from 8VC that drew in Google DeepMind's Jeff Dean. The platform automates the creation of reinforcement-learning environments and tunes model quality, with a sandboxing layer built to keep latency low. Its team also maintains open-source work like the GEPA prompt-optimization tool and the OpenThoughts dataset, and it trains agents inside simulated workstations and GitHub repos. As companies push agents into production, this kind of testing and post-training infrastructure is quietly becoming essential plumbing.

## Source

[Read the full story at SiliconANGLE](https://siliconangle.com/2026/07/06/ai-post-training-startup-bespoke-labs-raises-40m-funding/)

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