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Cosine vs Ellipsis: catalog facts
Cosine	Ellipsis
Paid Plans are listed on the pricing page; sovereign and air-gapped deployments go through the…	Paid Prices are not listed on the homepage; it installs as a GitHub app and a demo can be…
Web, Command line	Web, Command line
Own coding-specialised Lumen models Options for air-gapped and secure environments	Agents defined as version-controlled YAML in the repository Switch between Claude Code and Codex or between model providers easily
Aimed mainly at organisations rather than individuals Larger deployments require contacting the team	Hosted service tied to GitHub Pricing is not shown on the homepage
Downloadable app, Hosted service	Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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