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CoArena launch: what they're building and where to launch next

FoxPlug writes launch posts from what a startup ships and matches it to the launch communities that fit it. This page shows what CoArena is building and where it could launch next; if it is your startup, start free below.

What they're building

The biggest crowdsourced benchmark for Computer-Use

Batch
Y Combinator Summer 2026
Industry
B2B
Team size
2
Based
San Francisco, CA, USA

Founders

coarena.ai ↗

See their funding details ↗

CoArena on the record

What they shipped

  • From its YC profile: 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. (source)
  • Its own site describes it as: "Post a real browser task and watch two frontier AI agents race it live. Judge the winner blind — every vote moves the computer-use leaderboard." (source)

Who is behind it

  • Prateek Jannu, Founder/CEO: Building CoArena (Computer-Use evals we all can trust), dropped out of Stanford. Love bagels and writing code, sometimes computers get involved and a lot of people like it. (source)
  • Nitish Kovuru, Founder: Co-founder and CTO/COO of Coarena, launched Coasty prev, SOTA CUA framework on OSWorld at 83% accuracy. Did CS at Columbia (Vision track) and hold a BS in Computer Engineering from Purdue, where I TA'd a graduate-level AI course as an undergrad and later went on to build enterprise sales automation agentic systems for my previous company. (source)

Timeline

  1. 2026: founded, per its YC profile. (source)
  2. 2026-08-07: "Show HN: Coarena - A community-driven arena to benchmark models for computer-use" posted to Hacker News by nkov47, 2 points and 0 comments. (source)

Other B2B software launches on FoxPlug

Where else to launch CoArena

  • Product Hunt ↗
    Self-promotion allowedFree
  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Demand Curve ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • No Code Founders ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • OnlineGeniuses ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • Product Makers ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • ProductLed ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group

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Featured on FoxPlug: CoArena