What is the effort parameter in Claude Opus 4.5?

The effort parameter is a unique feature in Opus 4.5 that allows users to control reasoning depth through high, medium, and low levels, directly impacting token consumption and response thoroughness.

When should I use 'low' effort mode?

Use low effort mode for simple tasks like text classification, summarization, or basic lookups to reduce token costs by up to 70% while maintaining speed.

How does Opus 4.5 pricing compare to previous versions?

Opus 4.5 is significantly more cost-effective, priced at $5/M input tokens, which is five times cheaper than the $25/M rate of Opus 4.1, despite being more capable.

Does Opus 4.5 support computer use automation?

Yes, Opus 4.5 includes advanced automation capabilities, including application control and office document processing, making it ideal for agentic workflows.

Claude Opus 4.5 Expert Guide

Name: Claude Opus 4.5 Expert Guide
Author: adaptationio

byadaptationio

Data Science & ML

Provides comprehensive guidance on leveraging Claude Opus 4.5, including reasoning control via the effort parameter and performance optimization.

About

This skill serves as a definitive resource for developers and architects using Claude Opus 4.5, Anthropic's most advanced model. It offers deep insights into the revolutionary effort parameter—allowing dynamic control over reasoning depth—as well as detailed benchmarking, model selection matrices, and cost-efficiency strategies. Whether you are building autonomous coding agents or complex enterprise workflows, this guide helps you maximize state-of-the-art AI performance while managing token consumption effectively.

Key Features

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Cost optimization and migration paths from previous models
Detailed model selection and comparison matrices
Advanced coding and SWE-bench performance insights
Hybrid reasoning depth optimization strategies
Effort parameter configuration (high/medium/low)

Use Cases

Optimizing token consumption for high-volume reasoning tasks
Configuring hybrid reasoning for complex system design
Implementing autonomous coding agents with Opus 4.5

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add adaptationio/skrillz claude-opus-4-5-guide

For use in Claude.ai and ChatGPT

Download Skill

GitHub