YCS26· AI· Data· DevtoolsCoArena
The biggest crowdsourced benchmark for Computer-Use
Founders
- Prateek JannuFounder/CEO
- Nitish KovuruFounder
Same space
Competitors
Closest in what they build, same category.
Sepal AIS24Data Development for Advanced AIShared: aiops, reinforcement learning, data labelingAcquired
CartpoleX25Building reinforcement learning environmentsShared: reinforcement learning, data labelingActive
KairosX25Specialized AI for Critical IndustriesShared: aiops, machine learning, reinforcement learningActive
MarkovS26Expert computer-use data for frontier AI labsShared: reinforcement learning, data labelingActive
Perit.AIF26Expert-led data and RL platform for AI labsShared: data labelingActive
Adjacent
Overlapping tags, a different niche.
LightlyS21Help ML teams label the right dataShared: machine learning, data labelingActive
TraverseW26Research lab solving non-verifiable workShared: machine learning, reinforcement learningActive
OpenlayerS21The fastest way to ship airtight AIShared: aiops, machine learningActive
SpadeW22Spade is the data and AI platform for modern finance.Shared: machine learning, data labelingActive
PoplarMLW23Deploy Machine Learning Models with One CommandShared: aiops, machine learningActive
Also from S26 in AI
Batchmates in Summer 2026.
DatoricS26The secure training data R&D engine for physical AIActive
hiloopS26Autoresearch as a service: we solve your hardest measurable problemsActive
Agnost AIS26We find where AI agents fail, then train better models to run them.Active
BelvedirS26The custom AI model factory.Active
CueBenchS26RL post-training for science reasoning and performance engineeringActive
DeepReach Inc.S26Network for Physical AI Data BusinessActive
About CoArena
CoArena is a live arena where anyone can use the world's top computer-use models racing two of them on the same real computer task and judging which one did it better. Every battle becomes something the AI labs can't build themselves, an honest test of their agents on real work, and the data to make them better.
San Francisco, CA, USA
CoArena: questions
Which YC batch was CoArena in?
CoArena was in Y Combinator's Summer 2026 batch (S26).
Is CoArena still active?
Y Combinator lists CoArena as active.
Who founded CoArena?
CoArena's founders, as listed on its YC page: Prateek Jannu (Founder/CEO), Nitish Kovuru (Founder).
Where is CoArena based?
CoArena lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.