Gemini 4 Carbon: release report
Google released Gemini 4 Carbon on October 28, 2026. Specs, with more added as evidence arrives.
The release
Google released Gemini 4 Carbon on October 28, 2026. Read the announcement.
- Takes unknown. Returns unknown.
- Not a reasoning model.
- Closed weights.
Google's release before this was Nano Banana 2.1 on October 6, 2026, 22 days earlier. Over the past year it has shipped a model every 6 days on median (37 releases).
Each section was written on the date shown and is not revised afterwards. Specifications from Models.dev, prices from provider listings, capability scores from Epoch AI under CC BY 4.0, chess and sudoku results from Glimmer Index Bench.