ImprovementModels ·
Claude Sonnet 5.5 is now available
What it does
You can now select Claude Sonnet 5.5 for your agents, with image inputs, Actions, and reasoning controls.
Before this
An expansion. This adds another model to the existing model picker.
Why it matters
Try it on your existing prompts and tools without rebuilding your agent.
The specs
Open Agent Builder → Build → Model, search for Claude Sonnet 5.5, select it, then choose Use Claude Sonnet 5.5.
- Context and output
- 999,000 tokens of context and up to 128,000 output tokens.
- Inputs and tools
- Text and image inputs, with Actions support.
- Reasoning
- Fastest, Fast, Smart, Smartest, and Maximum.
Reasoning type offers Default and Between tools. Between tools skips the initial thinking step and supports Fastest, Fast, and Smart effort.