Gemini 1.0
Release (see availability)Ultra/Pro/Nano family introduced; tuned Pro in Bard and Nano on Pixel first, Ultra later. Not all sizes/channels GA.
Historical event; see the access limitations above. Current support is not implied.
Documented releases by product. Dates refer to official events; coverage is curated and may not include the latest version.
Selected major model-family releases through October 1, 2026. Not comprehensive: most size variants, snapshots, specialized models and retirements omitted. Applications such as ChatGPT and Gemini app are separate products. Preview and GA events remain separate.
Sources checked through
Direction: oldest → newest · Earliest documented event · Most recent documented event
Ultra/Pro/Nano family introduced; tuned Pro in Bard and Nano on Pixel first, Ultra later. Not all sizes/channels GA.
Historical event; see the access limitations above. Current support is not implied.
1.5 generation and experimental million-token context; private preview for selected developers/enterprises.
Historical event; see the access limitations above. Current support is not implied.
Pro/Flash -001 GA in Gemini API, explicitly dated by changelog; not later Vertex AI/context announcements.
Historical event; see the access limitations above. Current support is not implied.
Experimental Flash with native tools and expanded modalities in developer tools/Gemini app; GA later.
Historical event; see the access limitations above. Current support is not implied.
GA through Gemini API in AI Studio/Vertex AI; API text output, other modalities separate.
Historical event; see the access limitations above. Current support is not implied.
Pro Experimental thinking model in AI Studio and Gemini Advanced; March 26 page update not launch date.
Historical event; see the access limitations above. Current support is not implied.
Stable Pro/Flash API GA; Flash-Lite only entered preview, not GA, that day.
Historical event; see the access limitations above. Current support is not implied.
Stronger reasoning, multimodal understanding and agents; developer preview with app integrations.
Historical event; see the access limitations above. Current support is not implied.
Improved core reasoning; developer preview and consumer Gemini/NotebookLM rollout before GA.
Historical event; see the access limitations above. Current support is not implied.
3.5 Flash GA, confirmed by API changelog; does not establish a 3.5 Pro release.
Historical event; see the access limitations above. Current support is not implied.
Stable production Flash, better coding/knowledge/multimodal efficiency; Lite/Cyber have separate availability.
Historical event; see the access limitations above. Current support is not implied.
GA with improved software engineering, web development and agent workflows.
Historical event; see the access limitations above. Current support is not implied.
Gemini API GA with stronger long-horizon coding; Flash Cyber separately restricted to trusted defenders.
Historical event; see the access limitations above. Current support is not implied.
Restricted rollout to trusted cyber defenders through Fairwind Program; not publicly or generally available.
Historical event; see the access limitations above. Current support is not implied.