Anthropic Launches Claude Sonnet 5.5: Performance and Cost Analysis

Anthropic has released Claude Sonnet 5.5, which is priced at half the cost of the flagship Opus 5.5 model. While official reports highlight a 30% increase in efficiency for most tasks, third-party testing by Artificial Analysis indicates that the model can become significantly more expensive when run at 'Max' inference effort settings due to high token consumption. The model is available via API on AWS, Google Cloud, and Microsoft Azure.