Gemini 4 Argon: Check Actual Access Before Changing Your Workflow

Separate announcement, eligibility and an actual successful account check. The September 30 announcement describes internal Google use, a restricted cyber-defender rollout and broader access to come. It does not establish a public button in your chat account. Use this guide to map the release, read benchmark claims carefully and record the access evidence you actually have.

Research snapshot: Oct 4, 2026. This is an access-reading workflow; no Argon account access, original model output or independent benchmark was obtained for this guide. Reopen the official rollout section before relying on it because access can change after the snapshot.