you both missed, sharper next time
“Targeted research and checks of Google’s public Gemini API, AI Studio, Vertex AI model lists, pricing pages, and official model/changelog documentation as of August 30–31, 2026 show no Gemini 3.5 Pro model ID available to the public; it remains in testing with partners and is still labeled as coming soon, meaning it was not generally available by the August 31, 2026 deadline.” — Worldward