# Google Gemini AI usage and model updates > Live situation record from CLSTR: https://clstr.news/situations/google-gemini-ai-usage-and-model-updates > Updated: 2026-09-27T10:50:00.000Z. Sources: 8. Developments: 2. Google is implementing changes to its Gemini AI services, specifically regarding resource management and model capabilities. In late August, Google announced a transition for Gemini Notebook from fixed daily usage limits to a dynamic, computation-based system. This new model calculates resource consumption based on prompt complexity, chat length, and tool intensity, with quotas refreshing every five hours. To assist users, Google is introducing real-time usage indicators and a ‘Generate later’ option for intensive tasks. By late September, reports emerged regarding technical difficulties with Gemini’s image generation models, including ‘Nano Banana’ and ‘Nano Banana Pro.’ Users have encountered error messages related to high request volumes or daily limits. The ‘Nano Banana Pro’ version, utilizing the Gemini 3 Pro Image model, provides advanced features such as improved text rendering and the ability to blend up to 14 reference images. ## Timeline ### 2026-09-27: Google Gemini image models face usage issues and model updates Google’s Gemini image models, known as Nano Banana, are seeing enhanced capabilities in the Pro version, though some users report issues with image generation limits and errors. 3 sources. https://clstr.news/cluster/google-gemini-image-models-face-usage-issues-and-model-updates ### 2026-08-29: Google updates Gemini Notebook usage limits to computation-based system Google is replacing fixed daily limits for Gemini Notebook with a computation-based system that refreshes every five hours, adjusting usage based on prompt complexity and resource intensity. 5 sources. https://clstr.news/cluster/google-updates-gemini-notebook-usage-limits-to-computation-based-system --- Cite as: Google Gemini AI usage and model updates. CLSTR, https://clstr.news/situations/google-gemini-ai-usage-and-model-updates