Claude Opus 4.8
Anthropic's high-capability model for difficult coding, deep reasoning, and sustained knowledge work.
Claude Opus · Generally available
Overview
Claude Opus 4.8 is designed for difficult, multi-stage work where careful judgment, sustained context, and reliable execution matter more than minimum latency.
In Aether, it is the model to consider for a complex codebase, deep analysis, or a professional draft that benefits from an extra layer of reasoning and critique.
+Pros
- High capability on complex multi-stage tasks
- Strong coding and tool use
- Good at maintaining direction across long work
-Cons
- Usually unnecessary for simple chat or formatting
- A stronger model can still be wrong and should not replace expert review
Best suited to
Complex software engineering
Deep reasoning and analysis
Long professional drafts
Extended agentic work
Aether Workspace Position
Available as Anthropic's high-capability model in Aether.
Aether can reserve Claude Opus 4.8 for complex reasoning, difficult coding, and sustained professional work.
Research sources
- Introducing Claude Opus 4.8Anthropic
