Claude 4.6 Opus has been freely available, attracting many users who often waste valuable credits on simple tasks. This article provides effective tips and priority scenarios for using your limited free credits to accomplish work that previously took days or weeks.

Core Principles of Credit Management

Free credits are limited, so they should not be wasted on simple tasks. The core principle of credit management is to reserve Opus for complex tasks that only it can handle, while using free models like Sonnet 4.6 for simpler tasks.

Simple Q&A, copywriting, information retrieval, and casual chatting can be effectively performed by Sonnet 4.6, which offers nearly identical performance to Opus but is completely free and has no credit limits. Use Opus credits only for complex tasks that Sonnet cannot handle, maximizing the value of each call and ensuring your limited free credits are used effectively.

High-Value Scenarios for Free Credit Usage

Here are four high-value scenarios where Opus is irreplaceable and best suited for using free credits:

1. In-Depth Analysis of Long Documents: Opus excels in analyzing lengthy documents, such as entire novels, extensive contracts, complete industry reports, or entire codebases. For example, it can review a 500-page merger contract to identify potential risks and loopholes, analyze a 300,000-word academic monograph to summarize key points and theoretical frameworks, or organize a codebase with hundreds of files to understand the overall project structure and logic.

2. Complex System Design and Architecture: Developers and product managers can utilize Opus to design intricate system architectures and product plans. This includes designing a large e-commerce website’s technical architecture, planning a new product’s functionalities and user flows, and creating detailed project development plans and risk control strategies.

3. Professional Document Writing and Review: Opus demonstrates exceptional capabilities in specialized fields such as law, finance, and healthcare, making it suitable for writing and reviewing professional documents. Examples include drafting legal complaints, reviewing financial statements for anomalies, and writing abstracts and discussions for medical papers.

4. Solving Difficult Problems: When faced with a challenging problem, Opus can be a valuable resource. It can assist in debugging elusive bugs, solving complex mathematical proofs, or analyzing tricky business issues to find solutions. Opus can approach problems from different angles, uncovering overlooked details and clues to help you quickly find answers.

Tips to Avoid Ineffective Consumption

Many users waste credits due to improper usage. Here are three tips to help you avoid ineffective consumption:

1. Combine Related Questions: Instead of asking one small question at a time, merge multiple related questions into a single request. For instance, instead of separately asking about issues in a contract’s subject information, breach of contract responsibilities, and dispute resolution clauses, ask, “Please review this contract and identify all risk points, including subject information, breach responsibilities, and dispute resolution clauses, with detailed explanations and modification suggestions.” This approach saves credits by completing all tasks in one call.

2. Clarify Requirements and Output Format: When asking questions, be as specific as possible about your needs and the desired output format to avoid generating unsatisfactory content that requires re-calling. For example, instead of saying, “Help me write a report,” specify, “Please write a 1500-word Q1 sales analysis report, including market overview, sales data, problem analysis, and next steps, in Markdown format with key data presented in tables.” This clarity leads to content that better meets your expectations without needing repeated modifications.

3. Utilize Context Windows: Opus supports a context window of 1 million tokens, allowing it to remember previous conversation content. Avoid starting a new conversation for each question; instead, continue asking in the same thread to gradually refine the content. This not only saves credits but also ensures the generated content is more coherent and accurate.

Advanced Usage Techniques

Mastering the following two advanced techniques can enable you to accomplish more complex tasks with Opus:

1. Use System Prompts: Before starting a conversation, set a clear role and task requirements for Opus. For example, you might say, “You are a senior lawyer with over 10 years of contract review experience. Be meticulous in your review, identifying all potential legal risks and providing specific modification suggestions.” This helps the model better understand your needs and generate more professional content.

2. Complete Complex Tasks in Phases: For very complex tasks, do not expect to complete everything in one go; break it down into phases. For instance, when writing an academic paper, first ask the model to generate an outline, then have it write the main text based on the outline, followed by editing and proofreading, and finally checking formatting and citations. This phased approach not only improves content quality but also better controls credit usage.

In summary, while the free version of Claude 4.6 Opus has credit limitations, mastering the correct usage methods can unlock significant value. Reserve credits for the most complex tasks and plan each call wisely to find that your limited free credits are more than sufficient. More efficient usage tips will continue to be explored to help users better leverage top AI tools to enhance work and learning efficiency.