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- Feb 15, 202490% CONFIDENCEfrom the source
Gemini 1.5 Pro Released
- Google announced Gemini 1.5 on 15 February 2024, a little over two months after Gemini 1.0, describing the first model, 1.5 Pro, as performing at "a broadly similar level" to 1.0 Ultra[1]
- It uses a new mixture-of-experts architecture that Google said makes it more efficient to train and serve[1][2]
- A limited group of developers and enterprise customers could try it in AI Studio and Vertex AI with a window of up to 1 million tokens, while everyone else got the standard 128,000[1]
Notable features
- Context window of up to 1 million tokens in production - against 32,000 for Gemini 1.0 - enough for 1 hour of video, 11 hours of audio, codebases of over 30,000 lines or over 700,000 words; 10 million tokens were tested in research[1]
- Outperforms 1.0 Pro on 87% of the benchmarks used to develop Google's large language models, and finds an embedded fact 99% of the time in needle-in-a-haystack tests up to 1 million tokens[1]
- Learns new skills from a long prompt without fine-tuning, which Google showed with a demo reasoning across a 402-page transcript and a 44-minute movie[1]
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- [1]90%blog.google/technology/ai/google-gemini-next-generation-model-february-2024blog.google· Posted Sep 30, 2026· Starts Feb 15, 2024 ✓· 50% of score
Google's post "Our next-generation model: Gemini 1.5" is dated 15 February 2024 and opens a limited preview of 1.5 Pro for developers and enterprise customers that day.
- [2]75%Gemini (language model) - Wikipediaen.wikipedia.org· Added Sep 30, 2026· 50% of score
The Wikipedia article lists Gemini 1.5 Pro as released on 15 February 2024 and describes the new mixture-of-experts architecture and one-million-token context window.
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