gbrain.io (YC X26) — A personal or team assistant that works while you sleep
Like ChatGPT or Claude, but it runs in the cloud, remembers everything you give it, and comes loaded with skills. Hand it a job tonight and read the answer in the morning.
gbrain.io is a Y Combinator company in the Spring 2026 batch. Its directory entry describes it as: A personal or team assistant that works while you sleep. The founders listed are Brad Gessler (Founder/CEO), Jamison Mercurio (Founder) (Y Combinator directory entry, September 15, 2026).
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Like ChatGPT or Claude, but it runs in the cloud, remembers everything you give it, and comes loaded with skills. Hand it a job tonight and read the answer in the morning. Use it on your own, or with your whole team.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Like ChatGPT or Claude, but it runs on a machine of its own in the cloud, remembers everything you give it, and comes loaded with skills. Hand it a job tonight and read the answer in the morning.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Brad Gessler
Founder/CEO
Cofounder & CEO Gbrain.io, P26. Cofounder & CTO of Poll Everywhere, S08. More at https://bradgessler.com/
Jamison Mercurio
Founder
Co-founder at Gbrain.io (P26). Previously co-founder and CEO of Mango Health (YC W24, AI mental health). Former Meta iOS and web engineer (Messenger Video Chat + Facebook News). Princeton CS Class of 2020.
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 232 companies held here in B2B › Productivity.
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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