OB-1 is a frontier, self-improving coding agent. Now available for general access!

San Francisco, CA
Introducing Connections. Set it up once → every OB-1 session just works. Connect: • Individual accounts (e.g. @linear) • Org accounts (e.g. @sentry) Plus: @github @braintrust @baseten @stripe …and more Powered by @WorkOS See OB-1 with @linear below!
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One setup in the dashboard. After that: → any engineer → any CLI session → any agent can securely use those connections. Here’s OB-1 fixing issues directly from @sentry ↓
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RT @daljeet_v: Benchmarks, Accountability, and What Matters Our Terminal Bench submission did not meet the standard we set for ourselves.…
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OB-1 now supports BYOK! Just add your keys from OpenAI or Anthropic and you're ready to go.
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Introducing PM Mode in OB-1! Run /init-pm and OB-1 will analyze your integrations to learn how your company works. Switch to PM Mode (shift+tab), and you'll never run out of ideas on what to build. See it in action for OpenClaw 👇
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The OB-1 free tier is back up with $10/day in credit! We onboarded ~10k users yesterday, which briefly strained the system. After removing some spam accounts, everything is running normally again. If you are running into issues, please report via /bug in CLI or joining Slack.
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OpenBlock retweeted
Your coding agent just got its own computer. ob1 --sandbox Powered by Modal.
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OpenBlock retweeted
The best coding agents don’t just write code, they ship it 🚀 All OB-1 sessions now include the @Vercel CLI as a preloaded skill: deploy, preview, and manage projects without leaving the agent.
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Here’s where OB-1 is going: – Auto-generates evals from past PRs, then climbs them with custom models – Builds its own skills, hooks, and rules from a codebase and session history – Background agents in safe sandboxes that keep working while you context-switch – Session sharing and forking: redefining version control around prompts, instead of source code – Lives where you already work: Slack, Linear, GitHub, Graphite – PM mode so it never runs out of ideas
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Today’s coding agent teams still employ hundreds of human engineers, which we find telling. We’ve kept our team small, consisting entirely of IOI/IMO medalists, to make one bet: OB-1 will build OB-1 faster than any human team. We’re just getting started. Be sure to follow @openblocklabs for future updates.
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The best coding agents don’t just write code, they ship it 🚀 All OB-1 sessions now include the @Vercel CLI as a preloaded skill: deploy, preview, and manage projects without leaving the agent.
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2/ OB-1 is a self-improving coding agent currently in beta. It placed #1 on Terminal Bench in September. We’re letting people off the waitlist each day - join here: openblocklabs.com/waitlist
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OpenBlock retweeted
Coding agents 💚 Modal Sandboxes
Your coding agent just got its own computer. ob1 --sandbox Powered by Modal.
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Your coding agent just got its own computer. ob1 --sandbox Powered by Modal.
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2/ Most coding agents run directly on your machine: eating memory, slowing your computer down, and even crashing your terminal. --sandbox moves all of that off your laptop and into an isolated cloud environment on @modal Your agent gets its own machine with your repo and local environment cloned instantly.
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3/ OB-1 is a self-improving coding agent currently in beta. It placed #1 on Terminal Bench in September. We’re letting people off the waitlist each day. Join here: openblocklabs.com/waitlist
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OpenBlock retweeted
OB-1 now reads .agents/skills One shared skills folder, usable across agents. @openblocklabs @openai @embirico @tibo
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OpenBlock retweeted
I’ll be at NeurIPS in San Diego this year! Reach out if you want to talk about coding agents (+ our upcoming CLI launch @openblocklabs), domain-specific RL, open-source.
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OpenBlock retweeted
So much fun hosting the CMU builder night tonight; packed with demos, energy, and great people. Gave a sneak peek of @openblocklabs' upcoming CLI agent, OB-1! s/o @waynesutton @convex for the space :)
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