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 GLM-5.3.
GLM-5.3 runs on the routes below. Route only to EU providers when your data has to stay in Europe. Some routes also sell flex and priority processing: the same model at another price, picked per request with service_tier. How service tiers work.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read | ||
|---|---|---|---|---|---|---|---|---|
| EU | No | $1.23 | $4.92 | $0.31 | Not offered on this route | Not offered on this route | ||
| EU | No | $0.55 | $3.39 | $0.17 | Not offered on this route | Not offered on this route | ||
| EU | No | $1.12 | $3.35 | $0.22 | Not offered on this route | Not offered on this route | ||
| EU | No | $1.54 | $4.84 | $0.15 | Not offered on this route | Not offered on this route | ||
| EU | No | $1.20 | $4.20 | $0.26 | Not offered on this route | Not offered on this route | ||
| EU | No | $1.75 | $4.50 | $0.44 | Not offered on this route | Not offered on this route | ||
| US | No | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| US | No | $0.90 | $4.00 | $0.20 | Not offered on this route | |||
| US | No | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| US | No | $0.18 | $3.55 | $0.14 | Not offered on this route | Not offered on this route | ||
| US | No | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| US | No | $1.19 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| Multi | —Not established | — | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | |
| Multi | No | $1.40 | $4.40 | $0.26 | Not offered on this route | |||
| Multi | No | $1.40 | $4.40 | $0.14 | Not offered on this route | Not offered on this route | ||
| Multi | No (opt-in) | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| Multi | No | $1.40 | $4.40 | Input price | Not offered on this route | Not offered on this route | ||
| Multi | — | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| Multi | No | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route | ||
| Multi | No | $1.40 | $4.40 | $0.26 | Not offered on this route | Not offered on this route |
GLM-5.3 by Z.ai is a 744B open-weight coding and agentic model, post-trained on the GLM-5.2 base with a 1M-token context and low, high, and max reasoning effort levels.
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