Claude Cowork
Claude Cowork is a proprietary cloud-hosted coding environment for AI-assisted coding, built by Anthropic (released 2026-01). Claude Cowork integrates with 2 verified models, including Claude Sonnet 4.6 and Claude Opus 4.6. Use this page to compare model coverage, pricing, release timing, source availability, and adjacent harnesses before choosing an AI coding workflow.
Overview
Agentic AI system for knowledge work running on desktop with file access, task scheduling, and multi-step task execution.
Featured Model Specs
| Model | Lab | Released | Context | Reasoning | Open source |
|---|---|---|---|---|---|
| Claude Sonnet 4.6 | Anthropic | 2026-02-17 | 1M | Yes | No |
| Claude Opus 4.6 | Anthropic | 2026-02-05 | 1M | Yes | No |
Model Compatibility Matrix
| Model | Lab | Default | Access tier | Notes |
|---|---|---|---|---|
| Claude Opus 4.6 | Anthropic | Yes | Pro | — |
| Claude Sonnet 4.6 | Anthropic | No | Pro | — |
Underlying Models
Compare to Similar Harnesses
FAQ
What is Claude Cowork?
Claude Cowork is a proprietary cloud-hosted coding environment for AI-assisted coding, built by Anthropic (released 2026-01). It's a hosted environment accessed via browser, where teams can delegate implementation, preview changes, and move from prompt to pull request without managing local setup. It is primarily used for browser-based autonomous development and task delegation.
What models does Claude Cowork support?
Claude Cowork runs Claude Sonnet 4.6, Claude Opus 4.6.
Is Claude Cowork open source?
No, Claude Cowork is a proprietary cloud-hosted coding environment.
What are alternatives to Claude Cowork?
Alternatives include Devin, Bolt.new, and Replit Agent.
When was Claude Cowork released?
Claude Cowork was released in 2026-01.