Claude model updates

Claude Opus 5.5 for your most complex work

For complex coding, deep research and long-running work. Compare Pro, Max 5x and Max 20x with clear account and usage boundaries.

September 23, 2026

Model update

Claude Opus 5.5 is here for complex coding and long-running work

Claude Opus 5.5 is designed for demanding work such as large codebase changes, difficult debugging, deep research and long-running knowledge projects. Anthropic says Opus 5.5 reaches Fable 5.1-level performance on most work and runs at 40% lower cost than Opus 5. Pro is a practical fit for everyday coding and writing; Max 5x and Max 20x are better when you need more frequent or longer sessions. Model access, features and limits vary by account and plan. A Claude subscription is separate from API billing, and this site is a third-party subscription assistance service.

September 3, 2026

Model update

Claude Fable 5.1 is here for complex coding and long-running work

Writing complex code, running deep research, working through long documents, or keeping a demanding project moving? Claude Fable 5.1 is built for these workloads. Anthropic lists Pro, Max, Team, and Enterprise as eligible plans. Start with Pro for everyday work, choose Max 5x for frequent complex tasks, or Max 20x for heavy long-running projects. Actual model access, features, and limits depend on the target account and Anthropic's current rules.

August 9, 2026

Service notice

Independent subscription assistance

GuideWhale provides independent Claude subscription assistance and is not officially affiliated with Anthropic or related brand owners. Product, price, term, eligibility, and warranty details are the live facts shown at checkout.