Labelbox

About Labelbox

Labelbox builds the environments frontier labs train AI on, and the agents engineering and research teams hand their backlog to. The company offers Recursion for enterprises and Horizon for frontier AI labs. Recursion's agents start on their own, triggered by a red build, an alert, a new checkpoint or a schedule, and work in the background until the job is done. Sessions involve a coordinator and specialist agents that rerun evals, diff training data, bisect code and ablate changes, then send fixes for review. Every run is graded, and graded sessions leave memories, notes and skills that the next session reads before it acts. Horizon builds environments and evals that frontier labs use for post-training, including simulated software, expert-written graders and tasks with real stakes.

Products

• Recursion: A platform for enterprises where a fleet of agents is given a goal and does the work across a company's systems.
• Horizon: Builds the environments and evals frontier labs use to post-train models, including simulated software and expert-written graders.
• Feature Builder: Builds each ready ticket into a working feature, with tests, in its own sandbox.
• Bug Fixer: Reproduces each new bug, finds the cause and writes the fix with a regression test.
• Incident Investigation: Correlates alerts, logs and recent deploys the moment an alert fires.
• Benchmark Runner: Runs every candidate model against a company's own benchmarks in parallel, overnight.

Used for

• Tracing eval drops to the data, code or config that caused them, and proving it with an ablation.
• Upgrading dependencies as new versions ship, fixing what breaks and rerunning every test.
• Checking every cloud account for misconfigurations and exposed data.
• Running dozens of experiment configs at once and comparing every run with the baseline.
• Reviewing who can reach what, and flagging access no one uses or should have.

Who it is for

• Software engineering teams.
• ML research teams.

From Labelbox's own website, read 2026-10-23. How we build listings.

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