Abandoned AI tools

Sweep AI, the Y Combinator-backed coding assistant that began as an autonomous 'AI junior developer' on GitHub and pivoted to a JetBrains IDE plugin, went dark in autumn 2026 without an announcement. sweep.dev was still serving its homepage in early September but no longer resolves as of November 6, 2026, the blog is gone, the open-source repository has been idle since September 2025 and the JetBrains plugin's last release was February 2026.

AUDIALAB, maker of Emergent Drums, the AI plugin that generated drum samples from scratch, went dark in autumn 2026 without an announcement. audialab.com was last archived as a working site on September 14, 2026; its DNS zone was deleted by late September while the domain itself stays registered to 2028, and Native Instruments' Emergent Drums 2 product page has since been removed. The plugin relied on the company's servers to generate sounds.

Founded in Montevideo in 2019, acquired in 2022, then quietly left to rot. The site kept serving a page frozen at "Copyright © 2022" — still selling GPT-3 headline suggestions — until the hosting finally gave way in early May 2026. Every URL on the domain has returned an S3 "Access Denied" error since. No announcement, no sunset notice, no migration path: it simply stopped answering.

Last known pricing: $19/mo at the time it went dark.

An AI study suite for enriching class notes, drafting essays and generating quizzes. It stopped serving in early March 2026: the origin behind its CDN went away and every request has returned a gateway error since, with the app subdomain 404ing. No shutdown notice was posted. A lookalike domain still carries the branding but is an affiliate redirector, not the product.

Last known pricing: Pricing was quote-based; unknown at the time it went dark.

An AI video tool built around synthetic actors and voiceovers. It was still serving in February 2026, began redirecting in March and was returning errors by April; today pipio.ai redirects to an HTTPS endpoint that refuses the handshake. No shutdown notice, no successor domain, no rebrand — it simply stopped being maintained.

Last known pricing: Unknown at the time it went dark.

A risk and security analytics tool whose ending leaves an unusually clear fingerprint: its domain now points at 192.0.2.173, an address from the range reserved by the standards body for documentation examples. It resolves to nothing that can exist. The last working capture was December 2025; the registration is still live, so someone is paying for a domain aimed at nowhere.

Last known pricing: Pricing was quote-based; unknown at the time it went dark.

A revenue-analytics tool that surfaced lead quality, upsell openings and churn risk. It last served a working page in September 2025; since then delineate.co redirects to HTTPS on a Webflow host with no valid certificate, so no browser can reach it. Nobody renewed it and nobody announced anything. Note delineate.ai is an unrelated brand-tracking company, not a successor.

Last known pricing: Unknown at the time it went dark.

Went offline quietly in early 2025 with no shutdown announcement. The last working capture of coolaiid.com in the Internet Archive is 14 December 2024; by 20 January 2025 the domain only returned a redirect, and it has served nothing since. The domain still resolves to Amazon S3 addresses but refuses TLS connections identically for every client, which is abandonment rather than a bot block. No acquisition, rebrand or successor product was ever announced.

A conversational shopping assistant for e-commerce storefronts, from the generation of chatbots that preceded the LLM wave. Its last working page was captured in December 2024. The domain still points at a live cloud address, but nothing has answered on it since — no redirect, no parking page, no notice. It was switched off and left pointing at nothing.

Last known pricing: Pricing was quote-based; unknown at the time it went dark.

The Airfront AI-email product was abandoned in 2024-2025; founders Joanne Wang and Tommy Guo pivoted the company to Copper Health, an unrelated healthcare startup.