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 →
Grok Build 0.1 runs on the routes below. Route only to EU providers when your data has to stay in Europe. Some routes also sell priority processing: the same model at another price, picked per request with service_tier. How service tiers work.
Grok Build 0.1 by xAI is a fast coding model for agentic software engineering with a 256k context window and always-on reasoning.
Step-by-step setup for running Claude Cowork on each of these models through Opper.
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