Frontier Long-Horizon Evals

Train and evaluate your model on frontier tasks.

Idler builds evals for coding, finance, science, and defense. Our tasks are fair, frontier-difficulty, long horizon, diverse, and interesting. Customers use Idler tasks to measure how their models stack up against the competition, to check for regressions across model versions, as training tasks, and as high-taste hills for researchers to climb.

Method
Domains where the tasks come from

Coding

Real bugs, features, and refactors in live repos.

Finance

Reconciliation, modeling, and long-horizon analysis.

Science

Bio, pharma, and research workflows.

Defense

High-stakes capability and stress-testing.

Why Idler
Real
Environments from real engineering work, never invented benchmarks. The skill transfers.
Graded
Every task graded pass or fail against a working result. A checkable outcome, not a rubric.
Frontier
Built for the best models, aimed at the engineering they still get wrong.
Notes
Difficulty calibrationHow tasks are tuned to sit just out of reach.Note
Environments under RLWhat a graded world does to a model.Study
Shelf lifeRepresenting a codebase as an environment.Note
Frontier Long-Horizon Evals
We are building frontier evals for coding, finance, science, and defense.

Idler works quietly with frontier labs, turning real operations into reinforcement-learning environments and keeping a neutral record of what models can actually do.

We are hiring environment engineers. team@idler.ai

Turning real operations into reinforcement-learning environments.

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