Bespoke Labs

Long-horizon RL training environments and evaluation data for frontier AI labs, starting with coding agent training data

Seed · $15M · 2026-09 · Valuation $300M

Builds high-fidelity reinforcement learning environments (replicating Salesforce, Excel and browser/desktop workflows) for frontier AI labs and enterprises to train and evaluate computer-use agents

Human expert annotation, reinforcement learning evaluation and robot training data for frontier AI labs

Undisclosed · $71M · 2025-09 · Valuation $500M

Synthetic data technology for large models, filling data gaps at the pre-training, fine-tuning and reinforcement learning stages for low-resource languages, privacy-sensitive and long-tail scenarios

2026-07

Reconstructs real spaces as simulatable, interactive 3DGS scenes as training environments for embodied AI and world models

Angel · 2026-10

On-demand human feedback/RLHF platform for training and evaluating AI models (rapid feedback sourced via digital ads and other channels)

Seed · $17M · 2026-02

Helps clients such as Sanofi track and evaluate different data streams

Series A · $21M · 2023-08

Creates synthetic data for testing and training machine learning models

Series A · $6M · 2023-10