GBrain (garrytan/gbrain) validates the idea of persistent AI memory. 2,500+ stars on GitHub. But it requires Supabase, pgvector, bun, and an OpenAI API key before you can use it. Brainfile is the same idea — without the infrastructure tax.
Before you get any value from GBrain, you need to set up and maintain its infrastructure. Brainfile skips all of that.
bun install to install dependencies[PLACEHOLDER] sections with your infoCLAUDE.md in your project rootclaude in your project — it works immediately| Feature | GBrain | Brainfile |
|---|---|---|
| AI model support | OpenAI only (GPT-4, embeddings API required) | Claude, ChatGPT, Gemini, Cursor — any AI tool |
| Infrastructure required | Supabase + pgvector + bun + Node.js runtime | None — just your existing Claude subscription |
| Claude Code integration | Indirect — requires extra tooling to export to CLAUDE.md format | Native — templates are CLAUDE.md files, work immediately |
| Setup time | 2–3 hours (database setup, CLI config, API keys) | 15–30 minutes (customize placeholders, save as CLAUDE.md) |
| Monthly infrastructure cost | $25–50/mo (Supabase free tier exhausted quickly + OpenAI API usage) | $0 additional — included in your $149/mo subscription |
| Profession-specific templates | Generic memory storage — you write all the context yourself | 15 expert-crafted templates (Developer, Founder, Trader, Marketer, and 11 more) |
| Long-term maintenance | You maintain the infrastructure, keep dependencies updated | We maintain and update templates monthly as Claude evolves |
| Works offline / local | Requires database connection (Supabase is cloud-only) | CLAUDE.md files work completely offline — no external dependencies |
| Licensing | MIT (open source, no ongoing support) | Commercial — active development + support + monthly updates |
| Context approach | Vector embeddings (semantic search over stored memories) | Structured markdown (explicit, transparent, fully controllable) |
You're a developer who enjoys building and maintaining your own infrastructure. You already have OpenAI API access. You want semantic memory search across thousands of memories. You want to customize every aspect of the system.
You want to spend time on your actual work, not setting up databases. You use Claude Code and want a CLAUDE.md that works immediately. You want expert-crafted templates you can customize in 30 minutes. You want monthly updates as Claude evolves.
Download our 3 free starter templates (Developer, Founder, Trader) and try them with Claude Code today. No subscription, no credit card. If they make Claude dramatically more useful, you'll know it's worth it.
GBrain uses vector embeddings — it stores memories as semantic chunks and retrieves relevant ones automatically based on your query. This is powerful for unstructured data at scale.
Brainfile uses structured markdown — everything is explicit, transparent, and fully in your control. You read it, you edit it, you know exactly what Claude sees. No black-box retrieval. No "why did it not include that memory?"
15 production-ready CLAUDE.md templates. Updated monthly. Works with your existing Claude subscription.
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