What is Gemini?

Gemini is a family of large language models developed by Google. The material tracks its market performance, usage by organizations, and behavioral characteristics as observed by various commentators.

• Feb 2026 - Sebastian Raschka said that if you took the best open-weight LLM and put it into a ChatGPT, Gemini, or Claude interface, you would get similar quality performance, suggesting the tool wrapper matters as much as the model.
• Mar 2026 - Zvi Mowshowitz said that as Google iterated previous versions of Gemini, they got worse for many uses, becoming more specialized at the expense of general quality.
• Mar 2026 - Stefano Ermon said that Google is very focused on Gemini, implying high switching costs and difficulty in pursuing alternative directions.
• May 2026 - Harry Stebbings said that Gemini’s market share went from 27% to 40% in the last 9 months.
• May 2026 - Brad Carson said that the use of Gemini by the Department of War prompted 600 Google employees to write a letter.
• Jun 2026 - Lukas Petersson said that Gemini and OpenAI do not behave the same way as Claude, implying differences in model behavior.