Fission
To move AI coding away from blind generation towards specification-driven development by providing a framework that aligns AI agents with developer intent.
At a Glance
- Engineering teams
- Individual software developers
- Companies building with AI coding assistants
AI Tools by Fission
(1)
OpenSpec
Spec Driven AI Coding Framework
Discussions
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Latest News
Fission AI releases OpenSpec v1.2.0 with Profiles and new tool support.
OpenSpec reaches version 1.0.0: The OPSX Release.
OpenSpec joins Y Combinator W26 batch.
OpenSpec featured by Better Stack as a lightweight spec tool.
Products & Services
An open-source, lightweight spec-driven framework that captures what is being built, why, and how before AI agents write code.
An interactive and engaging way to review pull requests.
A team-oriented platform for deeper collaboration, customization, and multi-repo planning.
Market Position
Unlike standard AI chat interfaces or 'plan modes' that lack persistence, OpenSpec provides a durable, Git-integrated specification layer that treats AI agents like team members requiring clear requirements.
Leadership
Founders
Tabish Bidiwale
Previously a Senior Software Engineer and Team Lead at Q-CTRL, a quantum computing startup. He has a background in backend software engineering and holds a degree from the University of Sydney.
Executive Team
Tabish Bidiwale
Founder & Lead Maintainer
Lead maintainer of OpenSpec and founder of Fission AI; former Senior Software Engineer at Q-CTRL.
Board of Directors
Founding Story
Founder Tabish Bidiwale realized that managing AI coding agents is similar to managing a human team: without alignment on goals and specifications, technical velocity leads to broken systems and distrust in AI output.
Business Model
Revenue Model
Open-core model with a planned SaaS/subscription offering for 'Workspaces' targeting engineering teams.
Pricing Tiers
Core framework available as open-source on GitHub.
Early access waitlist for teams needing collaboration and multi-repo planning.
Target Markets
- Engineering teams
- Individual software developers
- Companies building with AI coding assistants
- Spec-Driven Development (SDD) for AI agents
- Managing complex changes in mature/brownfield codebases
- Aligning team requirements with AI code generation
- Living documentation that persists across AI chat sessions
- Early access users and engineering teams