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opcode vs Nimbalyst: catalog facts
opcode	Nimbalyst
Free Free to download from GitHub; Claude Code usage is billed separately by Anthropic.	Freemium Free for individuals; team and enterprise plans are offered, and you supply your own…
Windows, macOS, Linux	Windows, macOS, Linux
Graphical management of interactive Claude Code sessions Custom agents and background agents	Runs several agent sessions in parallel Review, approve or reject each AI change
Only useful alongside Claude Code Requires a Claude Code setup and its usage costs	Needs a separate Claude Code or Codex subscription or API key Collaboration features are aimed at paid team plans
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.