GEMINI 4: ARGON, EARLY ACCESS REVIEW

Summary from the TLDR Dev newsletter

Gemini 4 Argon handled an Android game, a UI redesign, and a distributed backend review well, with strong architectural planning and rapid changes across multiple files. Passing tests still hid cluttered layouts, accessibility regressions, and concurrency bugs, making browser checks, runtime logs, and adversarial self-review essential to getting reliable results.