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- Dec 4, 202590% CONFIDENCEfrom the source
Gemini 3 Deep Think Released
- Google began rolling out Gemini 3 Deep Think mode to Google AI Ultra subscribers in the Gemini app on 4 December 2025, about two weeks after Gemini 3 Pro, following extra safety evaluations and input from safety testers[1][3]
- It is an enhanced reasoning mode that delivers a meaningful improvement in reasoning capabilities over Gemini 3 Pro[1]
Notable features
- 41.0% on Humanity's Last Exam without tools and an "unprecedented" 45.1% on ARC-AGI-2 with code execution, plus 93.8% on GPQA Diamond[1][3]
- Uses advanced parallel reasoning to explore several hypotheses at once, building on the Gemini 2.5 Deep Think variants that reached gold-medal standard at the International Mathematical Olympiad[1]
References 383% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%blog.google/products/gemini/gemini-3-deep-thinkblog.google· Posted Sep 30, 2026· Starts Dec 4, 2025 ✓· 44% of score
Google's post "Gemini 3 Deep Think is now available in the Gemini app" is dated 4 December 2025 and says it is rolling out to Google AI Ultra subscribers that day; Wikipedia[2] lists the release as 3 December.
- [2]75%Gemini (language model) - Wikipediaen.wikipedia.org· Added Sep 30, 2026· 44% of score
The Wikipedia article lists Gemini 3 Deep Think as released in preview in December 2025.
- [3]85%A new era of intelligence with Gemini 3blog.google· Published Nov 18, 2025· 13% of score
Google's Gemini 3 launch post first announced Deep Think on 18 November 2025 and said it would reach Ultra subscribers after safety testing.[1]
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