Claude Opus 5 uses Claude text editor through Opper on the Messages endpoint, passed through as Anthropic defines it.
Paste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
curl https://api.opper.ai/v3/compat/v1/messages \-H "Authorization: Bearer $OPPER_API_KEY" \-H "Content-Type: application/json" \-d '{"model": "anthropic/claude-opus-5", "max_tokens": 1024,"messages": [{"role": "user", "content": "List the files in this repo."}],"tools": [{"type": "text_editor_20250728", "name": "str_replace_based_edit_tool"}]}'
Claude Opus 5 runs Claude text editor on the routes below.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| EU | No | $5.50 | $27.50 | $0.55$6.88 write | ||
| EU | No | $5.50 | $27.50 | $0.55$6.88 write | ||
| US | No | $5.00 | $25.00 | $0.50$6.25 write | ||
| Multi | No | $5.00 | $25.00 | $0.50$6.25 write |
Claude Opus 5 is Anthropic's flagship for complex agentic coding and enterprise work, with a 1M token context window and adaptive thinking.
Step-by-step setup for Claude text editor on each of these models through Opper.
Claude drives a desktop through screenshots, clicks and typing in your agent loop.
computer_toolsetClaude runs shell commands in an environment your agent controls.
bashGPT models write and run Python in a sandbox, on the Responses endpoint.
code_interpreter