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 Green L.
Green L 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 |
|---|---|---|---|---|---|
| GreenPT | EU | — | $0.28 | $0.91 |
green-l GreenPT Backed by Mistral Small 3.2 24B GreenPT-branded chat model tuned for multilingual writing, image understanding, and Dutch grammar guardrails. Input €0.25 Output €0.80 Context 128k Max output 32k Released Jun 2025 Text Images Documents Multilingual Writing assistant Dutch grammar guardrails
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