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Reason vs MySpec

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Reason compared with MySpec
DetailReason logo ReasonMySpec logo MySpec
What it doesAutonomous AI software engineer that connects to GitHub to resolve issues and ship pull requests AI Senior Architect for Spec-Driven Development that generates 4-file spec bundles before you write code
StageNot given MVP
FoundedNot given Not given
Based inUS SG
Pricing modelNot given Freemium
PricingNot given Free: 20 projects, 100 spec files, 20 public share links per month. Pro: 5× AI usage limit, 100 projects, unlimited specs. Team: 10× AI usage limit per seat (2 seats minimum), unlimited projects and specs.
Key features
  • GitHub integration for issue assignment and pull request automation
  • Evidence-backed pull requests with test results and recordings
  • Automated bug reproduction and verification
  • Dedicated computer environment per session
  • Mobile access to monitor tasks
  • Cloud and local runtime options
  • Test automation and code verification
  • 4-file spec bundle generation (constitution, requirements, solution, tasks)
  • Structured interview to clarify scope and edge cases
  • Live Mermaid diagram rendering
  • ZIP export of spec bundle
  • MCP Server integration for IDE agents
  • Greenfield and Brownfield workflow support
  • EARS+ acceptance criteria format
  • Versioned diffs for spec refinement
  • Team collaboration and shared projects
  • Plain-English edits in chat
What makes it different
  • Evidence-based code changes with recorded proof of testing and verification
  • 22% more cost efficient than competitor models
  • Opinionated architecture that improves the entire development loop
  • Built for trust with real repositories and careful verification
  • Maintains human judgment while automating mechanical coding tasks
  • Replaces vague prompts with immutable 4-file architectural contracts to prevent AI hallucinations
  • Senior Architect interview catches edge cases before coding begins
  • Supports both Greenfield and Brownfield project workflows
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)26 no change since last check22 no change since last check
Trust Flow (Majestic)1011
Citation Flow (Majestic)3427
Referring domains (Majestic)245100

4 details filled in for both companies.

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