Quick answers
Did Jonathan Ho co-found Ideogram?
Yes. BetaKit reported on August 24, 2023, when Ideogram came out of stealth, that Mohammad Norouzi had worked on Google's Imagen system with "fellow Ideogram co-founders Chitwan Saharia, William Chan, and Jonathan Ho", and BetaKit named the same four co-founders again on February 28, 2024.
What is Ideogram?
A text-to-image company. BetaKit reported on August 24, 2023 that the Toronto-based startup launched with a $22.3-million CAD (US$16.5-million) seed round, and on February 28, 2024 that it had closed a US$80-million Series A led by Andreessen Horowitz alongside the release of its 1.0 image model.
What did Jonathan Ho do before Ideogram?
Diffusion-model research. The arXiv record for "Denoising Diffusion Probabilistic Models", submitted June 19, 2020, lists him as first author with Ajay Jain and Pieter Abbeel, and the paper's project page credits all three to UC Berkeley. He is also a co-author of Google's Imagen paper, submitted May 23, 2022.
What does Jonathan Ho do now?
This profile does not say, because nothing we could read on 2026-09-22 establishes it. Ideogram's own site returns an HTTP 403 bot wall rather than a team page, no recent article we fetched names his present-day role, and directory and aggregator listings are not sources this directory accepts. Only his founder title is published.