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See also Gemini AI Instructions
Gemini, sometimes marketed as Google Gemini and originally known as Bard, is a generative artificial intelligence chatbot and virtual assistant developed by Google. It is powered by the family of large language models (LLMs) of the same name, previously based on LaMDA and PaLM 2.
The Gemini chatbot can process and generate text, computer code, images, audio, and video simultaneously. Google distributes the technology via multiple platforms, ranging from smaller on-device versions ("Nano") and more affordable, high-throughput variants ("Flash") to high-compute models designed for complex tasks ("Pro" and "Ultra").
Gemini was first announced on December 6, 2023, as part of the company's response against the launch of OpenAI's ChatGPT, and replaced existing Google branding for AI services. In February 2024, the Bard chatbot was renamed Gemini, and the "Duet AI" branding for Google Cloud and Workspace was retired in favor of the Gemini identifier. The models are accessed via the Gemini mobile app on Android devices and through the Vertex AI platform for third-party developers.
At launch, Gemini was criticized for unreliable outputs. In early 2024, Google suspended the model's ability to generate images of people after users reported historical inaccuracies and bias in its depictions of human subjects. Subsequent updates, including the Gemini 1.5 and 3 series released throughout 2025, attempted to reduce hallucinations, improve latency, and improve capabilities for research and software development.