Claude Pro: Opus model will only be available if extra usage is enabled
support.claude.com
April 27, 2026
2 min read
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45/100
Summary
Claude Code allows users to change the model using three methods: the /model command for instant changes, the --model flag for one-time session adjustments, and environment variables for setting a permanent default model. The /model command can be executed directly within Claude Code without requiring a terminal restart.
Key Takeaways
- Users can change the Claude model in Claude Code using the /model command for immediate changes without restarting the terminal.
- The --model flag allows users to set a specific model for one-time session changes when starting Claude Code.
- To set a default model for all future sessions, users must modify their shell configuration file and apply the changes by sourcing the file.
- Supported models include Opus 4.7, Sonnet 4.6, Opus 4.6, Opus 4.5, Haiku 4.5, and Sonnet 4.5.
Community Sentiment
Positives
- The introduction of Opus models in Pro plans reflects a significant advancement in AI capabilities, although it comes with additional costs.
- The ongoing development of open models indicates a competitive landscape that could drive innovation and accessibility in AI.
Concerns
- The high costs associated with extra usage for Opus models may limit accessibility for many users, particularly in enterprise settings.
- Concerns about the sustainability of AI pricing models suggest that many companies may struggle to afford these tools in the long run.
- The reliance on potentially less trusted open models from China raises ethical and security concerns for businesses looking to implement AI solutions.