Blog

Guides on RL environments, verification, vendors, and pricing. Written by the people who build verified environments for a living. New terms are defined in the glossary.

• Reinforcement Learning with Verifiable Rewards (RLVR)

  What reinforcement learning with verifiable rewards (RLVR) is, why it beats learned reward models, and how to apply it to business processes.

• What RL Environments Cost in 2026

  RL environment pricing in 2026: per-task rates, replica build costs, and contract sizes from public sources, plus what actually drives the cost.

• The 9 best RL environment companies in 2026

  An honest guide to the 9 best RL environment companies in 2026, from Scale and Surge to HUD, Fleet, and Pebble, with sources for every claim.

• Scale AI alternatives for RL environments

  Scale AI RL environments alternatives compared: Prime Intellect, HUD, Fleet, Mechanize, Surge, Mercor, Veris, and Pebble, with honest best-for calls.