Gemini 3.5 Flash launches
Google introduced Gemini 3.5 Flash for coding, multimodal tasks and agents, with access through consumer and developer products.
Why it matters
Speed and distribution shape how usable agent capabilities are in everyday work.
Flash was announced as generally available; Gemini 3.5 Pro was described as forthcoming. The Gemini API release notes, read on 15 October 2026 (dated entries from 19 March 2024 to 13 October 2026), contain no "Gemini 3.5 Pro". The entry of 13 October 2026 announces general availability of a different model, Gemini 4 Argon (evt-0977); whether that is connected with the promised 3.5 Pro the source does not say.