Claude Opus 4.8 was published yesterday, and it was made available also via Microsoft Foundry. You can deploy Claude Opus 4.8 to Global Standard region.
Claude Opus 4.8 is our most intelligent Opus model and the best generally available model for coding and agents, with deeper reasoning for enterprise workflows.
Training cut-off date: January 2026
Key model capabilities
- Adaptive thinking is an upgrade to extended thinking that gives Claude the freedom to think as much or as little as needed depending on the task and effort level. We’ve also introduced a new effort level, xhigh.
- 1M context window: Claude Opus 4.8 supports a 1M token context window, enabling reasoning over entire codebases and carrying multi-day project context forward without frequent compaction.
- High-resolution image input: Claude Opus 4.8 processes images at up to 2576px / 3.75MP delivering sharper results on screenshots, documents, and computer use.
Claude Opus 4.8. It builds on Opus 4.7 with improvements across benchmarks, and is a more effective collaborator. It’s available today for the same price.
Opus 4.8 launches alongside several new features. Users on claude.ai now have control over the amount of effort Claude puts into a task. Claude Code has a new “dynamic workflows” feature that allows it to tackle very large-scale problems. And fast mode for Opus 4.8—where the model can work at 2.5× the speed—is now three times cheaper than it was for previous models.
Introducing Claude Opus 4.8 \ Anthropic
Input formats
Image & text input: With powerful vision capabilities, Claude Opus 4.8 can process images and return text outputs to analyze and understand charts, graphs, technical diagrams, reports, and other visual assets.
Text output: Claude Opus 4.8 can output text of a variety of types and formats, such as prose, lists, Markdown tables, JSON, HTML, code in various programming languages, and more.
Pricing
Information from Microsoft Learn:
To use Claude models in Microsoft Foundry, you must have a paid Azure subscription with a billing account in a country or region where Anthropic offers the models for purchase.
The following subscription types are currently not supported:
- Enterprise Accounts located in South Korea
- Cloud Solution Provider subscriptions
- Azure subscriptions that don’t have an active pay-as-you-go billing method (for example, student, free trial, or startup credit–based accounts)
- Sponsored subscriptions that only use Azure credits. Note: If you have an account with a credit card on file, the credit card will be charged instead of Azure Credits.
Please do note that note. If you are like me who has sponsored subscription with Azure credits: deploying and using Claude models will be charged on your credit card instead of your subscription credits.
System Card and more resources
- Deploy and use Claude models in Microsoft Foundry (preview)
- Learn more about Claude Opus 4.8 from it’s system card.
- Claude Documentation : Visit Claude documentation for a wealth of resources on model capabilities, prompting techniques, use case guidelines, and more.
- Adaptive Thinking Guide : Understand how best to use adaptive thinking with Claude.
- Claude Prompting Resources : Check out Anthropic’s prompting tools and guides to learn how to craft prompts that elicit more helpful, nuanced responses.
- Claude Cookbooks : Check out example code for a variety of complex tasks, such as RAG from various web sources, making SQL queries, function calling, multimodal prompting, and more.
Vesa Nopanen - Future Work today 