Claude Opus 4.8
Is Here.
Anthropic’s most intelligent model yet. Capable of complex reasoning, state-of-the-art coding, and understanding long-form content with a 1M token context window.
What Is Claude Opus?
Claude Opus 4.8 is Anthropic's most advanced large language model. It is designed to handle complex reasoning, agentic coding, long documents, and nuanced conversations more effectively than any earlier AI model.
With a massive 1 million token context window, Opus can read multiple books, entire codebases, or lengthy legal contracts in a single prompt—delivering safer, smarter, and more human-aligned responses.
Claude Opus Features
Built for performance, safety, and scale.
Long Context Understanding
Process up to 1 million tokens. Analyze entire codebases, summarize books, and maintain context over very long conversations.
Advanced Reasoning
Opus excels at multi-step tasks, logic puzzles, coding challenges, and strategic analysis that stump other models.
Human-Aligned Responses
Designed with Constitutional AI to be helpful, honest, and harmless—reducing bias and hallucinations.
How Claude Opus Is Used
Writing & Summarization
Create high-quality content and summarize long documents with nuance.
Coding Assistance
Generate complex code, debug errors, and architect software solutions.
Research & Analysis
Synthesize information from multiple sources and perform deep analysis.
Education & Learning
Explain complex topics simply and act as a personalized tutor.
Business Productivity
Draft emails, analyze reports, and automate strategic workflows.
Claude Opus vs Other AI Models
Opus stands out for its high-fidelity writing and coding capabilities, often preferred for creative and technical tasks requiring nuance.
How to Get Started With Claude Opus
Create an Account
Sign up at Anthropic's website to access Claude.ai.
Upgrade to Pro
Claude Opus is available via the Claude Pro subscription.
Start Chatting
Select 'Opus' from the model dropdown and begin.