Yohei Onishi (YoheiOnishi)

IoT engineer

OpenAI Open Model Hackathon

Online

Build with gpt-oss, OpenAI’s open weight reasoning models.

$30,000 in prizes
Winners announced
8655 participants

COVID-19 Global Hackathon 1.0

Online

#BuildforCOVID19 Global Online Hackathon

Non-monetary prizes
Winners announced
18553 participants

Uber Hackathon

Online

Build the on-demand future with the Uber API

$9,000 in prizes
Winners announced
1437 participants

IoT + Mobile Hackathon

San Francisco, CA, USA

Build mobile interfaces for IoT apps!

$3,250 in prizes
Apr 18, 2015
71 participants