OpenAI

Get a key

1. Sign in at platform.openai.com
2. API Keys → Create new secret key
3. Copy the sk-... value

Set it

basalt config set provider.openai.api_key sk-...

The CLI stores it in the OS keychain.

Models used

Use	Model	Notes
Embeddings	text-embedding-3-small (1536 d)	Default
Synthesis	gpt-4o-mini	Fast and inexpensive; override per-verb

Cost expectations

Indexing a 1k-note vault: ~$0.04. Brief generation: ~$0.01–$0.03 per brief.

Privacy

Basalt sends only the text you ask it to embed or summarize. We never proxy this traffic — your machine talks to OpenAI directly. The OpenAI privacy policy applies to that data; review it before pointing Basalt at a sensitive vault.