Gemini 1.5 Pro was released by Google on March 21, 2024, as a flagship model in the Gemini Pro line.
Gemini 1.5 Pro beat Gemini 1.0 Pro on 87% of the benchmarks Google uses to develop its models and found a planted fact 99% of the time in inputs up to 1 million tokens long.
Compared with Gemini 1.0 Pro · the model it replaces
Reads up to 1 million tokens at once — over 700,000 words or 1 hour of video
Context window — how much text, audio or video the model can take in at once
1 million tokens
▲ up from 32,000 tokens for Gemini 1.0
Every Monday, only when something shipped: the AI models that came out, what each one changed, and which lines are due next.
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Gemini 4 Argon is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: Gemini 4 Argon · Oct 13, 2026
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