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idler

Hill-climb any benchmark, for any model, in any domain.

idler is a frontier data research lab. We build the evals and environments that the world's leading frontier labs use to measure and train their models.
Active Founders
Ivan Chub
Ivan Chub
Founder/CEO
idler. Previously cofounder of Dark Forest, 0xPARC, Zupass, Hack Lodge; also previously at Facebook, Dynasty, AppSheet.
Nalu Concepcion
Nalu Concepcion
Founder
currently: scaling RL environments. formerly: orchestrated 500+ person parties, monthly @ notsominimoments · swe @ msft · product @ poshmark · data science @ paymongo
Tony Goss
Tony Goss
Founder
cto @ idler. I (ethically) hacked Dark Forest to win $400k, beat the #1 ranked Dominion player, and play pro ultimate frisbee.
Company Launches
idler — push the frontier of your model
See original launch post

Today, we're introducing Idler – a frontier data research lab. We build the evals and environments that the world's leading frontier labs use to measure and train their models.

In the last year, we’ve developed thousands of coding evals and environments for a top lab, continuously improving our product to keep pace with the frontier – even as models have gotten 8x better at long-horizon coding.

Now, we're offering off-the-shelf datasets across an even broader set of capabilities: long-horizon software engineering, cybersecurity, recursive self-improvement, legal, long-horizon strategy & ops, enterprise safety, and many others.

ShelfLife, our first public benchmark, is out today — a digital twin seeded with the complete operational data of a live, profitable, growing multi-brand retailer running 9 stores, 3 commerce platforms, and a multi-supplier sourcing operation. Post-training Nemotron 3 Nano on 41 ShelfLife tasks raised its Finance Agent Benchmark score from 30.0% to 41.8% (p ≤ 0.001); full results and sample tasks are available upon request.

Our ask. Reach out if:

  • You or someone you know is working on post-training at a lab or enterprise.
  • You have 10-100 employees and you’d like to supplement your revenue by licensing your codebase or de-identified business data.
  • You know any exceptional researchers, infra engineers, or ops people looking for their next challenge. We’re hiring!

We’d love to hear from you at hello@idler.ai. Thanks for the support!

-Nalu, Ivan, & Tony.

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Jobs at idler
San Francisco
$125K - $400K
0.01% - 1.00%
Any (new grads ok)
San Francisco
$125K - $300K
0.01% - 1.00%
Any (new grads ok)
San Francisco
$200K - $500K
0.50% - 1.50%
Any (new grads ok)
San Francisco
$125K - $400K
0.01% - 1.00%
Any (new grads ok)
San Francisco
$125K - $400K
0.10% - 1.00%
Any (new grads ok)
idler
Founded:2025
Batch:Summer 2025
Team Size:12
Status:
Active
Location:San Francisco
Primary Partner:Harj Taggar