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Abundant

Builds coding environments and datasets for RL

Coding and SWE

Abundant creates environments and datasets for RL and also offers data licensing and custom evals. Its SWE-Marathon benchmark (NeurIPS 2026 poster) has 20 ultra-long-horizon tasks at about 27M tokens per attempt, with reward hacking observed in 13.8% of rollouts. It is a Y Combinator company backed by angels from OpenAI, Anthropic and Google DeepMind.

Best for: Ultra-long-horizon coding tasks with published reward-hacking analysis

Funding not disclosed

  • ✓ Bespoke builds
  • – Platform or hub
  • – Open source
  • – Publishes prices
Visit Abundant

Facts checked November 9, 2026 against the sources listed below. Abundant does not pay to appear here.

1 Legal nameAbundant
2 HeadquartersSan Francisco, CA
3 Founded2024
4 Team1–10
5 DeliveryBespoke builds, Catalog licensing
6 ExclusivityNot disclosed
7 Customers and partnersSays it powers "every frontier AI lab and multiple neolabs"; names none.
8 Published pricesNot disclosed

Worth knowing before you sign

  • Broad lab claim with no named customers
  • No disclosed funding or named investors
  • Founders not named on its own website

Go to Abundant's site

Sources

  1. Abundant homepage
  2. Y Combinator profile
  3. Built In profile
  4. SWE-Marathon paper (arXiv)
  5. pavlovslist directory

Work at Abundant? Send corrections with a source to editors@toprlenvironments.com. We fix verified errors within five business days.

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