Google DeepMindGemini (model family)
Generally Available
Google DeepMind's frontier, natively multimodal LLM family spanning Pro, Flash and Flash-Lite tiers plus Deep Think reasoning. As of Oct. 15, 2026 the public frontier model is Gemini 4 Argon (gemini-4-argon), opened Oct. 13 to the paid API, Gemini for business, Ultra, and Pro and Ultra app users. The high-volume workhorse remains Gemini 3.8 Flash, with Gemini 3.8 Live and 3.8 Live Extended Thinking, Gemini 3.5 Flash-Lite, Gemini 3.1 Pro / 3.1 Deep Think, Gemini Omni, and a Fairwind-gated 3.8 Flash Cyber variant. Reuters and Bloomberg reported on Sept. 30, 2026 that Google no longer plans to release Gemini 3.5 Pro. DeepMind's Pro page presents Gemini 3.1 Pro.
Latest update Oct 15, 2026