MySpec vs ChatOSS

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

MySpec compared with ChatOSS
Detail	MySpec	ChatOSS
What it does	AI Senior Architect for Spec-Driven Development that generates 4-file spec bundles before you write code	Desktop app for AI agents working with open source and cloud models
Stage	MVP	Startup
Founded	Not given	Not given
Based in	SG	Not given
Pricing model	Freemium	Freemium
Pricing	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.	Free: Local Ollama models with unlimited usage, no account required. Cloud Plus: $20/month including $20/m of usage credits (10% ChatOSS fee), web search, and BYOK unlock. Cloud Max: $100/month including $100/m of usage credits. BYOK Yearly: $39/year to use your own API keys from Ollama Cloud, OpenR
Key features	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	Agents work directly inside repositories and write code Extensible suite of apps you can build Switch between local Ollama and cloud models mid-conversation Support for multiple open source models including Qwen, DeepSeek, GLM, Minimax, Gemma, Nemotron Run many agents in parallel on models of your choice Web search capability on cloud plans Built-in apps including PR Reviewer and Migration Bot BYOK support for Ollama Cloud, OpenRouter.ai, Anthropic, and OpenAI-compatible providers No data retention for local or cloud conversations
What makes it different	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 forever with local Ollama models, no account or credit card required Run AI agents directly in your code repositories for real work Switch between open source and cloud models without restarting Flat 10% fee on cloud plans with all usage going to model providers
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	22 +1 (up) since last check	3 no change since last check
Trust Flow (Majestic)	11	3
Citation Flow (Majestic)	27	27
Referring domains (Majestic)	100	68

6 details filled in for both companies.

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