Copilot for Obsidian puts an AI assistant inside your Obsidian vault: chat with your notes, generate and rewrite content, and query your whole knowledge base without leaving the app. It is open source, its bring-your-own-key setup needs no Copilot license, and Opper is one of the providers in its catalogue: pick Opper, paste your key, and your vault runs on any of 700+ models, with your notes going only to the model you chose.
Copilot for ObsidianoninObsidian → Settings → Copilot → BYOK → Add a provider, search for Opper — the base URL comes prefilled, then paste your Opper key. Then pick Claude Sonnet 5.
Claude Sonnet 5 runs on the routes below. Route only to EU providers when your data has to stay in Europe.
| Provider | Region | Zero data retention | Training | Input | Output |
|---|---|---|---|---|---|
| AWS Bedrock | EU | Zero data retention | No | $2.20 | $11.00 |
| Google Cloud | EU | Not by default | No | $2.20 | $11.00 |
| Anthropic | US | Not by default | No | $2.00 | $10.00 |
| Azure | Multi | Not by default | No | $2.00 | $10.00 |
| Google Cloud | Multi | Not by default | No | $2.00 | $10.00 |
Claude Sonnet 5 is Anthropic's balanced production model, bringing near-Opus agentic coding and tool use to a 1M token context window.
Anthropic's desktop agent for knowledge work. Connect Claude models through Opper's Anthropic-compatible gateway.
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