YCW26· AI· DevtoolsOpenSpec
Plan mode for complex features
Founders
- Tabish BidiwaleFounder
Same space
Adjacent
Overlapping tags, a different niche.
InterlockW23We are still in stealth mode.Shared: modeInactive
JcodeS26High performance coding agentsShared: 20k+, coding, starActive
BackdropW23AI coworkers for running projects and operationsShared: spec, plan, githubActive
NuancedW24the AI coding app for thinking.Shared: spec, coding, developerActive
AdenW20Open source agent generation frameworkShared: framework, github, agentActive
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About OpenSpec
OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.
Sydney, NSW, Australia
OpenSpec: questions
Which YC batch was OpenSpec in?
OpenSpec was in Y Combinator's Winter 2026 batch (W26).
Is OpenSpec still active?
Y Combinator lists OpenSpec as active.
Who founded OpenSpec?
OpenSpec's founders, as listed on its YC page: Tabish Bidiwale (Founder).
Where is OpenSpec based?
OpenSpec lists Sydney, NSW, Australia 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.