Speed up responses with fast mode
code.claude.com
February 7, 2026
4 min read
🔥🔥🔥🔥🔥
59/100
Summary
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.
Key Takeaways
- Fast mode is currently in research preview and prioritizes speed over cost efficiency, using the same Opus 4.6 model with a different API configuration.
- Fast mode pricing starts at $30 for 150 MTok and is available at a 50% discount until February 16 for all subscription plans.
- Fast mode is best suited for interactive tasks such as rapid code iteration and live debugging, where response latency is more critical than cost.
- Fast mode requires extra usage to be enabled on accounts and is not available on third-party cloud providers like Amazon Bedrock or Google Vertex AI.
Community Sentiment
Positives
- Higher inference speeds could provide a significant competitive edge in AI applications, especially as demand for real-time processing grows.
- The introduction of speed-focused pricing models could democratize access to faster AI capabilities, allowing users to choose based on their specific needs.
Concerns
- Concerns about the true cost of inference raise questions about the financial sustainability of AI services, which could impact long-term accessibility.
- The lack of transparency around speed improvements and their underlying technology leaves users uncertain about the reliability and fairness of these advancements.
