Skip to main content
usedby
turbopufferusedbyKepler

How Kepler uses turbopuffer

ConfirmedVendor case study · Checked Nov 12, 2026
View captured proof

The use case: how Kepler deploys turbopuffer

Kepler, which builds verifiable AI for investment firms and financial analysts, indexes SEC filings, earnings transcripts, IR presentations and customers' private documents in turbopuffer. It runs hybrid vector and full-text search over them so each figure in its outputs can be traced to a source document.

More reported results

Figures published in turbopuffer’s case study. They are not independently measured by usedby.

85ms

85ms p90 latency

940ms

940ms p99 latency

1.2s

1.2s max latency

100M+

100M+ documents

In the customer’s words

turbopuffer is how we search the long tail of our corpus without spending an outrageous amount.
Sara Kromwijk, Founding Engineer, Kepler — Source

Other companies using turbopuffer

Customers across industries, with public evidence.

AtlassianConfirmedLegoraConfirmedLinearConfirmedMem0ConfirmedNotionConfirmedPlayerZeroConfirmed
See all turbopuffer customers

More stories

Go straight to the source

Based on turbopuffer’s published case study. We check the public evidence; the results are reported by the vendor.

turbopuffer.com
Last checked
Nov 12, 2026
turbopuffer.comCaptured turbopuffer case study about KeplerOpen source capture
What the story claims, and what we checked

What we compared with the page.

  • The figure: 10xChecked

    Printed word for word on the page, near the name of Kepler.

  • The passage quoted aboveChecked

    Copied word for word from the page, near the name of Kepler.

  • Kepler uses turbopufferChecked

    Confirmed line.

  • The result itselfNot checked

    We quote it; we did not measure it.

Kepler searches terabytes of public and private financial documents at 10x lower cost than capacity-based alternatives.
From the page. turbopuffer.com