Google I/O 2025 announcements: Gemini 2.5 models, Imagen 4, Veo 3 and Flow

Google I/O 2025 was a big one with a host of announcements, mostly focused on AI. We got updates and new features for the Gemini 2.5 models (Pro and Flash), alongside the more powerful Imagen 4 image generator, and Veo 3 AI video generator. Google also unveiled Flow - a dedicated AI filmmaking tool that combines Imagen, Veo and Gemini models to create cinematic scenes from simple text prompts.

Gemini 2.5 brings extended language support to over 24 languages with text-to-speech and expressive voices. Google claims improved reasoning, multimodality, coding and long context capabilities for both Flash and Pro models.

The big new update on the Pro model is the added Deep Think reasoning mode for highly complex math and coding tasks. The feature is still in its “experimental” phase and will be released to trusted testers soon. Google says it can consider multiple hypotheses before responding.

Gemini 2.5 Pro is now the leading AI mode on WebDev Arena and LMArena benchmarks. It offers enhanced coding and web app building tools and up to a 1 million token window for long context understanding. Gemini 2.5 also improves security against indirect prompt injections.

Gemini 2.5 Flash is available in preview to all users in the Gemini app, while its general release is coming later in June. Gemini 2.5 Pro’s commercial release will follow shortly after.

Imagen 4 can now output images in up to 2K resolution. Google claims it improved text accuracy in generated cards, posters and comics. Imagen 4 is available starting today across the Gemini, Google Workspace, Whisk and Vertex AI apps.

Imagen 4 samples (shared by Google)

Veo 3 is Google’s latest AI video model and features improved text-to-video prompt recognition. It can output video with sound, character dialogue and background noises. Veo 3 is available starting today for Google AI Ultra subscribers in the US and Vertex AI enterprise users.

Veo 2 is getting camera movements, object addition and removal functionality. Users can also add images for style control and outpainting to extend frames beyond the original borders.

Flow is Google’s new AI filmmaking tool which combines the capabilities of the Veo, Imagen and Lyria models for cinematic scenes with more detail. Google claims Flow can help storytellers create exceptional cinematic clips that excel at physics and realism. Users can control camera motion, angles and perspectives. You can also edit and extend previously generated videos. Google Flow is now available to Google AI Pro and Ultra subscribers in the US.