Claude Opus 5.5
Anthropic's strongest Claude model for complex work that calls for careful judgment.
Claude Opus · Generally available
Overview
Anthropic positions Claude Opus 5.5 for complex work that requires careful judgment, sustained reasoning, and high capability.
In Manywise, it is an option for demanding tasks where depth is more important than choosing the lightest model.
+Pros
- Designed for difficult, open-ended work
- Strong reasoning and coding profile
- Complements the faster Sonnet model
-Cons
- Routine tasks may be faster with a lighter model
- Availability and limits depend on the Manywise plan
Best suited to
Complex analysis and planning
Difficult coding tasks
Long-form professional work
Tasks requiring sustained judgment
Manywise workspace
Available in Manywise on eligible plans.
Manywise can select Claude Opus 5.5 for complex requests that benefit from sustained reasoning and careful judgment when eligible.
Research sources
- Introducing Claude Opus 5.5Anthropic
