OB-1 is a self-improving CLI coding agent, carefully tuned across all frontier models.
We're giving early users $10/day in free credits to give OB-1 a spin. We can't offer this forever, so sign-up now: openblocklabs.com
We're giving early users $10/day in free credits to give OB-1 a spin. We can't offer this forever, so sign-up now: openblocklabs.com
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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 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
– 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 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.
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.
Mar 12, 2026 · 4:58 PM UTC
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@openblocklabs any plan to add support for external integrations like custom llm provider, copilot or other coding plans? in genera cheap providers have bad integrations and nice integrations have very expensive providers (i mean the market token pricing)
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