Anthropic's fastest AI model with near-frontier performance, optimized for real-time, low-latency tasks. Achieves 90% of Sonnet 4.5's performance in agentic coding while running 4-5 times faster.
Available on Claude API, AWS Bedrock, Google Cloud Vertex AI
Optimized for computer use and coding tasks
Can be orchestrated by Sonnet 4.5 for complex tasks
Real-time, low-latency response times
Pros
Exceptional speed - 4-5x faster than Sonnet 4.5
Near-frontier performance at small model size
Highly cost-efficient pricing model
Strong coding and agentic capabilities
Improved safety and alignment
Available on multiple cloud platforms
Perfect for real-time applications
Great for orchestrated multi-agent systems
Cons
Not as powerful as Sonnet 4.5 for complex tasks
No free tier available
Relatively new with limited production track record
Pay-per-use pricing may not suit all budgets
Use Cases
Best For:
Real-time chat assistantsCustomer service automationPair programming and code generationMultiple-agent projectsRapid prototypingLow-latency applicationsHigh-volume API requestsComputer use automation