Claude Cowork is Anthropic's agent for knowledge work — the same agentic engine as Claude Code, but built for non-technical tasks inside the Claude desktop app, with no terminal required. Give it a goal and it works across your local files, folders, and applications, planning and carrying out the task while you steer, and it's aimed at research, analysis, operations, legal, and finance teams. On Opper it runs on any of 700+ models, not just Claude: point it at Opper's Anthropic-compatible gateway and keep inference in the EU or US on one key.
Claude CoworkoninClaude Desktop only accepts Claude model ids, so this pairing does not run in Cowork yet. Run it in Claude Code instead →
Green R 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 | — | $0.40 | $1.08 |
green-r GreenPT Backed by GPT-OSS GreenPT-branded reasoning model for advanced analysis, writing, and content generation. Input €0.35 Output €0.95 Context 128k Max output 32k Released Aug 2025 Text Images Documents Multilingual Advanced reasoning Writing & content generation
An open-source personal agent for everyday tasks. Run it on any model on Opper.
opper launch openclaw
Nous Research's open agent. Run it on any model on Opper.
opper launch hermes
The AI copilot for Obsidian notes. Pick Opper from its provider list and chat with your vault on any of 700+ models.
Opper built in