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YC S23

6 dead or acquired startups from batch S23 with completed research reports.

Every startup playbook in our database, ready to build

Each deep-dive includes a post-mortem, step-by-step rebuild plan, and a technical spec you can paste straight into Claude Code, Cursor, or Lovable.

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S23
Inactive
Branch AI logo

Branch AI

Artificial Intelligence

AI Overview Search, as a Service

S23
Inactive
CodeStory logo

CodeStory

Developer Tools

Aide is an AI-native , privacy-first IDE built on top of VSCode

S23
Acquired
FlowiseAI logo

FlowiseAI

Artificial Intelligence

Open source GenAI development platform

S23
Acquired
OpenPipe logo

OpenPipe

AIOps

Turn expensive prompts into cheap fine-tuned models

S23
Inactive
Vizly logo

Vizly

Artificial Intelligence

Data to insights in seconds

S23
Acquired
Watto AI logo

Watto AI

AI-powered McKinsey-quality reports in seconds

Startups.RIP — Dead startups, alive ideas
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