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Leibler

Last updated 2026-09-04 · benchmark measured 2026-09-04 — deterministic & reproducible

Kullback is an open-source harness that builds evaluation environments from agent trace logs.

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To cite this score: legit.show/s/leibler-dev/2026-09-04. That address never changes; this page moves with every re-measure.

Legit.Show scored Leibler 84/100 on 2026-09-04, measured across all 7 frames from its public surface. legit.show/s/leibler-dev/2026-09-04

Is Leibler production-ready?

Legit.Show scores Leibler 84 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Leibler (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 94/100
• Accessibility — 100/100
• Security — 80/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 25/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 92/100
• Discoverability — 100/100

What we measured

• Security headers present: HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 150 ms to first byte.
• Returns a proper 404 for unknown routes.
• 2 of 2 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.

Who it's for

AI researchers · Agent developers · ML engineers · Teams building autonomous agents

Sources and updates

Description

Taken from leibler.dev's own website on 2026-09-04.

Benchmark

Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-04.

Put together from public information, without Leibler's involvement. If anything here is wrong, tell us and a person will check it.

Visit Leibler → · Alternatives to Leibler → · How this was measured →