Lewis Lien Polansky

Co-Founder & CEO at Captain (YC W26) | File Search for Agents

[Lewis Lien Polansky @lienpolansky]

https://t.co/mupvBXnI0V

[Lewis Lien Polansky @lienpolansky]

Re-indexing collections was costing more the bigger they got

Captain's new Copy Collections feature is now just 10 credits whether it's copying 10 documents or 10 million, and takes about a second either way

[Mehul Agarwal @meh_agarwal]

if the models break loose, I pray they're using Captain

[Lewis Lien Polansky @lienpolansky]

@dr_chrisjones Absolutely! We've got some more great feature launches coming up soon

[Lewis Lien Polansky @lienpolansky]

Your AI agents probably don't need to read your customers' SSNs.

We just shipped PII masking for agent file search. Edgar and I break down how it works in 85 seconds.

[Lewis Lien Polansky @lienpolansky]

PII masking is live today and off by default, so indexing remains the same for your current search workloads.

Try it free: https://t.co/wOshCxjrsg

[Lewis Lien Polansky @lienpolansky]

Contact: Jane Doe at [email protected], SSN 123-45-6789, phone [phone].

becomes

Contact: <PERSON> at <EMAIL_ADDRESS>, SSN <US_SSN>, phone <PHONE_NUMBER>.

and PII in images gets blacked out.

[Lewis Lien Polansky @lienpolansky]

Ragie’s service ends this Sunday, July 19.

We put together a practical migration guide covering source data, collections, integrations, reindexing, API changes, and switching your live application to Captain.

https://t.co/AZB16Xgvdr

[Lewis Lien Polansky @lienpolansky]

Let's go guys!

[Anish @_anishgupta_]

Today we're launching @askbron_ai - your AI sports analyst.

Instantly get the best market price across every venue and automatically build plays around your criteria.

Head to https://t.co/V9CLFYESrZ for more.

[Lewis Lien Polansky @lienpolansky]

Windows for life but man this OS must have been the first thing ever vibecoded back in 1995

[Lewis Lien Polansky @lienpolansky]

@garrytan @RunCaptainRAG Got Garry installed, who's next?

[Garry Tan @garrytan]

You can build an agent but it is blind without data.

The founders of @RunCaptainRAG applied their NLP research in their startup to create automated file search.

Really accurate results within Garry's List. Here they are at the YC MV office doing a Collison install with me.

[brian flynn @Flynnjamm]

https://t.co/Okm3scbdOy

[Lewis Lien Polansky @lienpolansky]

@ycombinator @hillclimbai @NousResearch Let's go @jparkjmc, @agithief! IMO gold in, IMO gold out

[Garry Tan @garrytan]

Captain is a step function increase vs existing RAG pipelines

[Lewis Lien Polansky @lienpolansky]

@garrytan Engineers have been saying "RAG is dead!" for years but there's been no viable alternative until Captain emerged

[Lewis Lien Polansky @lienpolansky]

@karanjagtiani04 @ycombinator @RunCaptainRAG You can delete / re-ingest individual files as the underlying dataset changes so everything stays up-to-date

[Lewis Lien Polansky @lienpolansky]

Thrilled to announce we're backed by YC! Captain is the reliable alternative to RAG

[Y Combinator @ycombinator]

Captain (@RunCaptainRAG) delivers unprecedented accuracy in enterprise knowledge search.

It connects directly to cloud file stores and improves today's RAG pipelines from 78% to 95% accuracy.

[Lewis Lien Polansky @lienpolansky]

@marczog @ycombinator AI will never be the same.