Gemini
Alphabet's multimodal flagship line, served through the Gemini API and Vertex.
At a glance
Current release
From the release row Gemini 3.5 Flash. Introductory price through 2026-12-31; Google lists $1.50 / $7.50 from 2027-01-01. The row's own gemini-3.5-flash is $1.50 / $9.00.
Family record: Official documentation · 5 Sep 2026
Built on it
1 product in this catalogue names this family on their own pages.
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Gemini
Alphabet (Google)
Official documentation · 5 Sep 2026
Releases
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Gemini 1.0
First Gemini generation, built natively multimodal, in Ultra, Pro and Nano sizes; Ultra claimed as the first model to outperform human experts on MMLU (90.0%).
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Gemini 1.5
Gemini 1.5 Pro, a Mixture-of-Experts model with a 1 million token context window (1 hour of video, 11 hours of audio); 1.5 Flash followed in May 2024.
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Gemini 2.0
Gemini 2.0 Flash for the 'agentic era': native image and audio output plus native tool use; said to beat 1.5 Pro on key benchmarks at twice the speed, GA Feb 2025.
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Gemini 2.5
Gemini 2.5 Pro Experimental, the first 'thinking' Gemini, with a 1M-token context; claimed top of LMArena and 18.8% on Humanity's Last Exam. Stable 2.5 Pro/Flash June 17, 2025.
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Gemini 3
Gemini 3 Pro plus a Deep Think mode; claimed 1501 Elo on LMArena and 37.5% on Humanity's Last Exam, shipped with Google Antigravity. Gemini 3 Flash preview followed Dec 17, 2025.
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Gemini 3.1 Pro
Preview release presented as a smarter baseline for complex problem-solving; claimed a verified 77.1% on ARC-AGI-2, more than double Gemini 3 Pro.
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Gemini 3.5 Flash
Start of the rapid Flash cadence: gemini-3.5-flash GA, then 3.6 Flash (Jul 21), 3.7 Flash (Aug 13) and 3.8 Flash (Sep 2, 2026) each presented as the top 'workhorse' model.