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Toloka

Data major with managed, harness-agnostic RL gyms

Data majorTool useComputer useApp replicasCoding and SWE

Toloka publishes one of the most detailed RL-gym menus: MCP replicas of enterprise tools with realistic schemas and permission models, containerized browser and web-app mockups, simulated multi-user companies, and Tau-style gyms calibrated to about a 50% pass rate. Delivery is managed end to end, with versioned environments and deterministic resets, and works with Toloka’s harness or yours.

Best for: Managed gyms that plug into your own training harness

$72M (May 2025, Bezos Expeditions)

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

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

1 Legal nameToloka AI
2 HeadquartersNot disclosed
3 FoundedNot disclosed
4 TeamNot disclosed
5 DeliveryBespoke builds
6 ExclusivityNot disclosed
7 Customers and partnersReuters coverage of its 2025 round named Amazon, Microsoft and Anthropic as customers of its data services, not specifically RL environments.
8 Published pricesNot disclosed

Worth knowing before you sign

  • Part-owned by Nebius (formerly Yandex’s international business); check governance if jurisdiction matters
  • The RL-gyms page names no customers; its lab testimonial is anonymous

Go to Toloka's site

Sources

  1. Toloka RL gyms page
  2. Reuters: $72M round
  3. Verdict: round coverage
  4. pavlovslist directory

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

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