Sweep (YC S23) — The best AI coding assistant for JetBrains
Use your favorite JetBrains IDE without compromising on AI. Sweep is the best autocomplete and agent in JetBrains: https://plugins.jetbrains.com/plugin/26860-sweep-ai
Sweep is a Y Combinator company in the Summer 2023 batch. Its directory entry describes it as: The best AI coding assistant for JetBrains. The founders listed are William Zeng (Founder), Kevin Lu (Founder) (Y Combinator directory entry, May 19, 2023).
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
Use your favorite JetBrains IDE without compromising on AI. Sweep is the best autocomplete and agent in JetBrains: https://plugins.jetbrains.com/plugin/26860-sweep-ai
sweepaiorganisation linked from the company's own record
Counted 2026-09-27 across repositories the account owns; forks are excluded.
Sweep lists 1 open role on its directory entry.
William Zeng
Founder
Youngest senior MLE at Roblox. Cumulative 10% CTR lift on games search.
Stats/ML at CMU.
Building Sweep, a Cursor alternative for JetBrains.
Kevin Lu
Founder
Previously: top of class at UWaterloo CS, built the first ML-based skin weight generation model for UGC avatars at Roblox, and NLP researcher on common sense reasoning (in the Bart/T5 era). Now building an AI-powered junior dev and interested in code gen and automated code gen orchestration.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 634 companies held here in B2B › Engineering, Product and Design.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
A Full Report on Sweep: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Sweep covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
10 cited sources found
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