Google introduces stable Gemini 2.5 Flash and Pro, previews Gemini 2.5 Flash-Lite

Google DeepMind has introduced the stable versions of its Gemini 2.5 Flash and Gemini 2.5 Pro models, its chief executive Sundar Pichai confirmed on Tuesday.


ET reported in March that Gemini 2.5 Pro is the first release in the 2.5 series, which is claimed to be the most advanced reasoning AI model with "state-of-the-art" ranking across various benchmarks.


Gemini 2.5 Pro got the top position on the large language model benchmarking tool LMArena, and received a score of 18.8% on Humanity’s Last Exam, which has been specifically designed to test knowledge and reasoning capabilities.

After being available only for Google AI Studio and Gemini app advanced users, the AI models have now become useful for developers. The tech major revealed that organisations like Snap Inc and SmartBear have already experimented with these models, in addition to developers like Spline and Rooms.

In April, Google launched Gemini 2.5 Flash capable of real-time conversations, summaries, and extended interactions. It was available for both Google AI Studio and Vertex AI, paving the way for developers and companies to build AI agents.

Following this, the company announced Gemini 2.5 Flash-Lite in preview. It claims that it is the most cost-efficient and fastest model in the series yet, which is efficient in coding, math, science, reasoning and multimodal benchmarks. It also supports a context length of up to one million tokens, which refer to words or pieces of a word used by AI systems.