Vertex AI Release Notes

On September 23, 2025, we discovered a technical issue in the Vertex AI API that resulted in a limited amount of responses being misrouted between recipients for certain third-party models when using streaming requests. This issue is now resolved. Google models, e.g. Gemini, were not impacted.

Some internal proxies did not properly handle HTTP requests that have an Expect: 100-continue header, resulting in a desynchronization in a streaming response connection, where a response intended for one request was instead delivered as the response for a subsequent request.

For more information, see Security bulletins.

Anthropic's Claude Haiku 4.5

You can use Anthropic's Claude Haiku 4.5 in Model Garden.

Veo video generation

Veo 2 supports adding and removing objects from videos in Preview.
For more information about Veo 2, see Veo 2 Preview

For more information about adding and removing objects, see the following:

• Insert objects into Veo videos
• Remove objects from Veo videos
• Veo video generation API

Veo 3.1 in Preview

Veo 3.1 is available in Preview, and introduces the following models:

• Veo 3.1 preview
• Veo 3.1 Fast preview.

For more information, see the following:

• Generate videos with Veo on Vertex AI
• Generate Veo videos from text prompts
• Generate Veo videos from an image
• Generate Veo videos using first and last frames
• Direct Veo using a reference image
• Veo video generation API

Colab Enterprise

SQL cells: You can use SQL cells to write, edit, and run SQL queries directly from your Colab Enterprise notebooks. For more information, see Use SQL cells.

Generative AI on Vertex AI v1

Imagen subject and style fine-tuning

Imagen subject model and style model tuning will be removed on December 31, 2025. We recommend that you use Gemini 2.5 Flash Image, which supports most use cases that require fine-tuning. For more information, see Edit images with Gemini.

Imagen 4 preview models

The following Imagen 4 preview models will be removed on November 30, 2025: imagen-4.0-generate-preview-06-06, imagen-4.0-ultra-generate-preview-06-06, and imagen-4.0-fast-generate-preview-06-06. To avoid service disruption, migrate all workflows that use Imagen 4 preview models before November 30, 2025, to the following Imagen 4 Generally Available models: imagen-4.0-generate-001, imagen-4.0-ultra-generate-001, imagen-4.0-fast-generate-001.

Imagen

Imagen's virtual try-on model, virtual-try-on-preview-08-04 was updated on September 30, 2025, to more accurately preserve the person's body shape and preserve the garment's identity.

Vertex AI Workbench

v2

M134 release

• Patched a regression with custom notebook metrics reporting (for example, jupyterlab_kernels and docker_status metrics).
• Updated the Dataproc JupyterLab plugin (dataproc-jupyter-plugin) to version 0.1.92.
• When using Google Cloud CLI commands, the project and region properties are preset.

Post-startup scripts

You can use a post-startup script to perform tasks after the startup process of your Colab Enterprise runtime. For example, you can use a post-startup script to install specific packages or make specific changes to your runtime's VM. For more information, see Use a post-startup script.

Save and share prompts in Vertex AI Studio

You can now save and share prompts in Vertex AI Studio. Sharing prompts lets you collaborate with team members, ensure consistency, and build a library of effective prompts for various tasks. For more information, see Save and share prompts.

The following Qwen models are available in Model Garden

• Qwen-Image
• Qwen-Image-Edit
• Qwen-Image-Edit-2509
  v1beta1

The Gemini 2.5 Computer Use model and tool (gemini-2.5-computer-use-preview-10-2025) is now available in Preview. The Computer Use model and tool lets you enable your applications to interact with and automate tasks in the browser. With the Computer Use model and tool, you can build agents that can:

• Automate repetitive data entry or form filling on websites.
• Navigate websites to gather information.
• Assist users by performing sequences of actions in web applications.

Generative AI on Vertex AI v1

Updated pricing for Vertex AI Agent Engine: Starting on November 6, 2025, Vertex AI Agent Engine Runtime will start charging for runtime usage for the following regions:

• asia-southeast1 (Singapore)
• australia-southeast2 (Melbourne)
• europe-west2 (London)
• europe-west3 (Frankfurt)
• europe-west4 (Netherlands)

For more details, see Pricing for Vertex AI Agent Engine.

Access Transparency for Vertex AI Agent Engine: Access Transparency is now available for Vertex AI Agent Engine. For more information, see the overview for Enterprise security.

Vertex AI Agent Builder

Updated pricing for Vertex AI Agent Engine: Starting on November 6, 2025, Vertex AI Agent Engine Runtime will start charging for runtime usage for the following regions:

• asia-southeast1 (Singapore)
• australia-southeast2 (Melbourne)
• europe-west2 (London)
• europe-west3 (Frankfurt)
• europe-west4 (Netherlands)

For more details, see Pricing for Vertex AI Agent Engine.