Model Switcher with Hierarchy
Claude implements a tiered model selection system that balances simplicity with power user needs. The main dropdown presents three current models with clear use-case descriptions, while a "More models" submenu provides access to legacy versions.

Claude composer showing model selection dropdown with three primary options: Opus 4.5 (complex work), Sonnet 4.5 (everyday tasks), and Haiku 4.5 (quick answers)
What's happening
Claude takes a task-oriented approach to model selection, presenting each model with a clear description of its strength (complex work, everyday tasks, quick answers). This guides users toward the right model for their needs rather than requiring technical knowledge of version numbers.
Patterns
Dropdown showing current model family with descriptive labels and use cases
"More models" submenu reveals legacy versions without cluttering the main interface
UX Insights
- •Task-based descriptions (e.g., "Best for everyday tasks") are more accessible than technical specs
- •Hierarchical menu structure keeps the interface clean while maintaining version access
- •Checkmark indicator provides clear feedback on current selection
- •Upgrade prompts on premium/legacy models create clear upgrade paths
- •Consistent placement in composer enables per-conversation model switching
Design Decisions
Claude's model switcher prioritizes user intent over technical details. By describing models through their best use cases rather than technical capabilities, Claude makes model selection approachable for all users. The progressive disclosure pattern (hiding legacy models behind "More models") keeps the primary interface simple while preserving access to older versions for testing or comparison.
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