Analysts Place Google Gemini 3.5 Pro General Availability in the June 23-30 Window — 2M-Token Context, Deep Think Gated to Ultra

Google Gemini·low signal

Tracking from multiple roundups puts Gemini 3.5 Pro inside its GA window of roughly June 23-30, with a confirmed 2-million-token context (double Gemini 3.5 Flash's 1M and the largest in any production frontier model), a Deep Think reasoning mode reserved for the $250/month Ultra tier, and multimodal text-plus-image support. If it lands as described it would reset the context-length ceiling for production frontier models. Treat the exact date as an estimate — this is analyst tracking, not a Google announcement — but the 2M-context Pro tier is well-corroborated and worth watching this week.