Fast mode in Claude Code is designed for rapid iteration and live debugging, allowing users to toggle speed on or off based on their needs. It utilizes the same Opus 4.6 model with a different API configuration to prioritize speed while maintaining identical quality and capabilities.
code.claude.com
4 min
2/7/2026
Fast mode in Claude Code is designed for rapid iteration and live debugging, allowing users to toggle speed on or off based on their needs. It utilizes the same Opus 4.6 model with a different API configuration to prioritize speed while maintaining identical quality and capabilities.
code.claude.com
4 min
2/7/2026
Fast mode in Claude Code is designed for rapid iteration and live debugging, allowing users to toggle speed on or off based on their needs. It utilizes the same Opus 4.6 model with a different API configuration to prioritize speed while maintaining identical quality and capabilities.
code.claude.com
4 min
2/7/2026
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