What happened to the URL on file for Crucible AI Braintrust?

URL unreachable The URL on file (https://www.roundtablelabs.ai/) did not respond across three consecutive checks; the streak completed on 2026-09-20.

This reports what that URL did, not a claim that Crucible AI Braintrust itself is gone: the address on file does not confidently match Crucible AI Braintrust's own domain, so if it turns out to be a marketplace or listing page rather than Crucible AI Braintrust's own site, this observation is still accurate about the URL, just not about the product. See the methodology for how the match is made.

The vendor's own description, unedited:
Overview Socials: Stop talking to yourself. Build a Boardroom. Crucible is not a chatbot; it is a simulated Board of Directors. It brings together 3-12 specialized AI Agents (e.g., The CFO, The Skeptic, The Visionary) to debate your strategic decisions. Unlike ChatGPT, which agrees with you, Crucible's agents are programmed to disagree. They stress-test your ideas using a "Thesis-Antithesis-Synthesis" framework to find blind spots and kill bad ideas before they cost you money. Best for: Founders, Consultants, and Investors who need a "Red Team" to challenge their assumptions. Key Features: Pro-Only "Sandbox" Mode (Try for free), Executive Brief generation, and Audit Trails.

Live alternatives

No active same-category alternatives in the registry yet. The tools index carries everything else that is live.

How this was decided

Not an editorial call. The URL on file failed three consecutive checks, with a confirmation re-probe before the streak counted (a bot-wall response never counts as one), and the 3-miss rule marks the listing discontinued automatically. If the URL responds again, the registry restores it on its own: warn first, then active. Both directions are recorded as events.

Spot an error? Tell us. Corrections to the record append, they never rewrite.