Huzzle Labs

§ Positioning

Builds long-horizon coding and agent environments, RLHF datasets, and evaluation benchmarks — pairing engineered environments with vetted human-expert feedback. Early-stage, but unusually broad for its size.

Best for · Teams wanting environments and the human feedback to train against them together.

Team · Founded by Ingmar Klein and Amit Choudhary.

Focus · Long-horizon coding/agent environments, RLHF datasets, and eval benchmarks, paired with vetted human-expert feedback.

• Long Horizon · Evaluation

  Andon Labs

  agent benchmarks with a sense of humor

• Code · Math

  Prime Intellect

  the open-source backbone of the category

• Code · Software Engineering

  Mechanize

  deep, narrow, elite

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