Claude Sonnet and Opus variants appear in the FastSubS text catalogue. Consider them for editing, reviewing supplied text and discussing code. Catalogue availability does not establish support for every file type, unlimited context or guaranteed accuracy.
Review a document without invented conclusions
Define what you need: deadlines, inconsistencies, obligations or a summary. Example: “Review this contract excerpt. Make a table containing clause, obligation, deadline and clarification question. Do not add information absent from the text.” If your interface cannot attach that document, paste an appropriate text excerpt instead. Avoid disclosing third-party personal data without a valid basis.
Editing and coding
Specify audience, tone and constraints: “Shorten this instruction by a third while keeping every step and warning; list uncertain passages separately.” For code, request an explanation and a reproducible example. Treat AI output as a draft: contracts need professional review, and code needs tests in your environment.
Sonnet, Opus, Fable and version labels
Compare input support, cost and suitability for your task instead of choosing by a headline name. Latest can be a changing supplier alias rather than a fixed version. Read the Fable guide and check the current catalogue. FastSubS is not an official Claude subscription.
Budget and access
Describe your needs in the advisor and compare the available suggestions. Large source texts and accumulated history increase request volume; split work into logical sections where appropriate. The website, Telegram, Windows and Android share your account. Use the API only for documented methods, and consult FAQ for account and result guidance.