OpenSpec

OpenSpec

Fission AI
GSD Pi

GSD Pi

Open GSD
+
+

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About

OpenSpec is an open-source spec-driven development framework designed to bring structure and clarity to AI-assisted coding workflows. It introduces a lightweight specification layer that helps teams define requirements before writing code. The platform organizes each change into structured artifacts such as proposals, specifications, designs, and task lists. It integrates with over 20 AI coding tools, allowing developers to use their preferred assistants while maintaining consistency. OpenSpec emphasizes an iterative and flexible approach rather than rigid development phases. Its command-based workflow enables users to propose, implement, and archive features efficiently. Overall, OpenSpec helps developers align with AI systems, reduce ambiguity, and produce more predictable and reliable outcomes.

About

GSD Pi is a local-first coding agent for planning, implementing, verifying, and tracking project work from the command line. It combines a terminal agent, project workflow tools, worktree-aware Git automation, local project memory, model routing, and optional UI integrations so a project can move from idea to reviewed implementation with less manual coordination. GSD Pi is built around an execution loop that keeps AI-assisted engineering honest: discuss messy intent into explicit scope, plan durable slices with the right context, execute work in clean contexts and worktrees, verify behavior with evidence, and ship with clean commits and trustworthy handoffs. From the shell, users can start guided or quick coding sessions, break work into milestones, slices, and tasks, and let auto mode plan, implement, verify, and advance the work. It stores requirements, decisions, runtime notes, generated plans, summaries, and validation evidence.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers, product teams, and organizations using AI coding assistants who want a structured, spec-driven approach to improve clarity, collaboration, and development outcomes

Audience

Software developers and AI-assisted engineering teams that need a local-first coding agent to plan, execute, verify, and track project work from the command line

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Fission AI
openspec.dev/

Company Information

Open GSD
Founded: 2026
United States
www.opengsd.net/products/gsd-pi

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

GSD 2

GSD 2

Open GSD
GSD Pi

GSD Pi

Open GSD
Kiro

Kiro

Amazon Web Services
Zenflow

Zenflow

Zencoder
Intent

Intent

Augment Code

Categories

Categories

Integrations

Amazon Q Developer
Auggie CLI
Claude Code
Cline
CoStrict
Codebuddy
Crush
Cursor
Devin Desktop
Factory
Gemini CLI
Git
GitHub Copilot
Google Antigravity
Kilo Code
Kimchi
OpenAI Codex
OpenCode
Qoder
Roo Code

Integrations

Amazon Q Developer
Auggie CLI
Claude Code
Cline
CoStrict
Codebuddy
Crush
Cursor
Devin Desktop
Factory
Gemini CLI
Git
GitHub Copilot
Google Antigravity
Kilo Code
Kimchi
OpenAI Codex
OpenCode
Qoder
Roo Code
Claim OpenSpec and update features and information
Claim OpenSpec and update features and information
Claim GSD Pi and update features and information
Claim GSD Pi and update features and information