Google Antigravity vs Claude Code vs Codex: comparison

This comparison examines Google Antigravity, Claude Code and Codex through the work each asks developers to supervise. The speaker pairs them with Gemini 3.5 Flash, Opus 4.7 and GPT-5.5, respectively. These are the video's stated configurations, rather than independently verified product specifications.

Antigravity is presented as a dashboard for managing parallel agents. The speaker credits Flash with fast output but argues that extra tokens and backtracking can reduce its apparent cost advantage. Claude Code is described as a more deliberate coding assistant that reads project rules and gives developers control through diffs, approvals and hooks. Codex handles tasks in a remote cloud sandbox and returns a finished pull request, according to the narration.

The rule-following discussion includes competing accounts: the speaker describes Opus as literal about constraints, then quotes a developer who says Claude sometimes overrides preferences. The speaker bases this argument on reported benchmarks and anonymous developer anecdotes, without reproducible methods or underlying records. They do not establish how every repository will behave. The closing recommendation is to give all three tools the same difficult refactor and compare the guidance and correction each requires. This is a narrated workflow overview, with no original comparative test results or local model setup demonstrated.