Google has announced enhancements to its Gemini 2.5 models, including the 2.5 Pro version and the new 2.5 Flash model, which improves speed and efficiency. The 2.5 Pro will include native audio output controls for developers to customize speech. Enhanced security measures will protect against malicious instructions and prompt injection attacks. Project Mariner's functionality will be integrated into Gemini and Vertex AI. Google is also introducing insightful summaries for developers to aid in debugging, along with cost control features through a "thinking budget." A generally available model will be released, and support for Model Context Protocol (MCP) will facilitate the integration of open-source tools into Gemini projects.