not out of the box.

not out of the box. Codex provides the important missing piece: a browser/computer-use tool that can inspect the page and click/type into it. Ollama is just the model runtime, so a local or cloud Ollama model would also need a browser automation tool plus a small adapter to pass page elements into Jev and execute the chosen action. OpenCode may be able to do it if it has compatible browser tools, but it isn’t plug-and-play yet. Same idea for Antigravity: compatible browser access is the requirement, not the underlying model.