Captain
Captain is a YC Winter 2026 (W26) company. Based in San Francisco, CA, USA. Team of 2.
About Captain
Summary
Captain builds a file search platform for AI agents, replacing hand-wired RAG pipelines. It indexes unstructured content from cloud storage like S3, Google Drive, and SharePoint, handling scans, handwriting, tables, and recordings that standard pipelines miss. Developers query across petabyte-scale, multimodal data through a single API that self-tunes retrieval accuracy against their own files.
Business model
API access with a free tier and paid plans, as shown on the pricing page.
Go-to-market
Developer teams building AI agents adopt it self-serve via an API key, with a demo booking path for larger accounts.
From the Y Combinator listing
Give AI agents accurate knowledge search that scales
Captain delivers the most accurate file search engine built for AI agents. We’ll index data from the sources folks already use like S3, SharePoint, and Google Drive, and easily scale multimodal, petabyte-level content search. We’re the Snowflake for Unstructured Data. Captain tops the Open-RAG-Benchmark with over 20% higher accuracy than standard RAG pipelines. We achieve this through robust data processing techniques like embedding normalization across modalities, ensuring that representations cluster by semantic content rather than data type.
Facts
- B2B / B2B -> Infrastructure
- San Francisco, CA, USA
- 2
- Active
- Early
Founders (2)
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