Hopper
Overview
Fast inference for voice.. Hopper trains STT, TTS, and speech LLMs on your production calls, then serves and improves them against your live traffic.
Funding and backers
Backers
1
Y Combinator
Momentum
15/100
in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 2026
Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Hacker News stories
1
best: 2 points
Backed byfrom the funds' portfolios and accelerator catalogs
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Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Y CombinatorVia a fund
6311 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
towards the speed of light with megakernels
A worklog on megakernels for Gemma 4 on TPU v5e: 640 tok/s per user on the 26B-A4B MoE model versus 173 on an H100 with vLLM, why the dense 31B model gains only 1.2x, and when a megakernel is worth building.
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Report
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco
United States
HQ