Announcing Claude Opus 4.5 on Vertex AI

Today, we’re excited to announce that Anthropic’s newest model, Claude Opus 4.5, is generally available on Vertex AI. As Anthropic’s most advanced model to date, it excels in coding, agents, vision, computer use and office tasks — at one-third the cost of its predecessor, Opus 4.1.

We remain committed to providing Vertex AI customers with even more model choice, a core tenet of our platform. This new model adds to the latest Claude Sonnet 4.5 and Claude Haiku 4.5 models already available on Vertex AI. For customers already building with Claude Sonnet 4.5, Opus 4.5 serves as an upgrade delivering frontier performance across existing use cases. 

When building with Opus 4.5 on Vertex AI, you get a unified AI development platform to quickly build, deploy, and operationalize your AI applications and agents — backed by Google Cloud’s reliable and high performance infrastructure, secure-by-default platform controls and advanced AI protection, and Agent Builder stack.

How Opus 4.5 helps businesses — from complex coding to more capable agents

• Agentic tool use: The model, paired with Anthropic’s next wave of tool use improvements, enables more capable agents with new behaviors. For example, programmatic tool calling lets agents execute tools directly in Python. Tool search lets agents dynamically discover from hundreds of tools without context window bloat.
• Coding: The model can turn multi-day development projects into hours-long tasks, working independently with broader language support and enhanced behaviors like more efficient code, better test coverage, and cleaner architecture choices.
• Office task agents: The model has improved memory to maintain context and consistency across files, alongside a step-change improvement in creating spreadsheets, slides, and docs.
• Financial analysis: The model can connect the dots across complex information systems. This includes regulatory filings, market reports, internal data, making sophisticated predictive modeling and proactive compliance possible.
• Cybersecurity: The model brings professional-grade analysis to security workflows, correlating logs, vulnerability databases, and threat intelligence to support threat detection and incident response.

Build on Vertex AI, our unified AI development platform

Vertex AI is the trusted, open platform for building, deploying, and scaling differentiated AI applications and agents with unconstrained choice. By combining cutting-edge partner models like Claude Opus 4.5 with our enterprise-grade tooling, you can get the most out of your agents without sacrificing control, safety, or speed. 

• Get the most out of your agents: Rapidly build, scale, and govern agents using our comprehensive Agent Builder stack, which makes it easy to move multi-step workflows from prototype to production with enterprise governance. This stack includes the open Agent Development Kit (ADK), Agent2Agent (A2A) protocol, and the fully managed Agent Engine.
• Achieve optimized performance and scale: Remove the burden of provisioning overhead and gain massive scale by running Claude as a Model-as-a-Service on our high-performance infrastructure. You can leverage the global endpoint for Claude for enhanced availability and reduced latency, or reserve dedicated capacity and prioritized processing for your Claude workloads at a fixed cost with provisioned throughput.
• Improve performance and reduce costs: In Vertex AI, you’ll have access to Claude-supported features that help improve performance while reducing cost, including prompt caching with flexible Time To Live (TTL) up to one hour, efficient batch predictions, a 1M token context window, and web search (preview).
• Deploy with confidence: Deploy AI workloads confidently, backed by our secure-by-default platform and advanced threat protection. Utilize Google Cloud’s foundational security, data residency, and governance controls, and get advanced AI Protection in Security Command Center. Protect against novel AI and agentic threats like prompt injection and tool poisoning with Model Armor.

Customers driving impact with Claude on Vertex AI

Augment Code is using Claude on Vertex AI to power its AI coding assistant, which helps developers navigate and contribute to production-grade codebases.

“What we’re able to get out of Claude is truly extraordinary, but all of the work we’ve done to deliver knowledge of customer code, used in conjunction with Claude and the other models we host on Google Cloud, is what makes our product so powerful.” – Scott Dietzen, CEO, Augment Code

Palo Alto Networks speeds up feature development and code implementation by 20% to 30% with Claude on Vertex AI.

“With Claude running on Vertex AI, we saw a 20% to 30% increase in code development velocity. Running Claude on Google Cloud’s Vertex AI not only accelerates development projects, it enables us to hardwire security into code before it ships.” – Gunjan Patel, Director of Engineering, Office of the CPO, Palo Alto Networks.

Replit leverages Claude on Vertex AI to power Replit Agent, which empowers people across the world to use natural language prompts to turn their ideas into applications, regardless of coding experience.

“Our AI agent is made more powerful through Anthropic’s Claude models running on Vertex AI. This integration allows us to easily connect with other Google Cloud services, like Cloud Run, to work together behind the scenes to help customers turn their ideas into apps.” – Amjad Masad, Founder and CEO, Replit

TELUS built its generative AI platform, Fuel iX™, on Google Cloud to give its team members a choice of curated AI models, like Claude, inspiring engineering excellence and enterprise-wide productivity.

“Getting a model as powerful as Claude on Vertex AI is a win-win that makes life so much easier. We get a model that excels at tool calling on a comprehensive platform that integrates with our core Google Cloud workloads like GKE and Cloud Run — that’s the magic.” – Justin Watts, Distinguished Engineer, TELUS

How to get started

Start building with Claude Opus 4.5 today by following these instructions:

1. Navigate to the Claude Opus 4.5 model card in the Vertex AI Model Garden, select “Enable”, and follow the proceeding instructions. You can also find and easily procure Claude Opus 4.5 on Google Cloud Marketplace.

2. Explore our sample notebook for help getting started.

3. Visit our documentation for pricing and regional support details.