New Model Available: Claude Sonnet 5.5

Anthropic released Claude Sonnet 5.5, an upgraded Sonnet-class model that the company says outperforms Claude Sonnet 5 while running over 30% faster and at lower cost for many workloads. The model is priced at $2 per million input tokens and $10 per million output tokens, with cache reads at $0.2 per million tokens and cache writes at $2.5-4 per million tokens, and is positioned for agentic coding, tool use, and everyday professional tasks.

Claude Sonnet 5.5 is Anthropic’s upgraded Sonnet-class model, delivering stronger performance than Claude Sonnet 5 while running over 30% faster and at lower cost for many workloads. It is designed for agentic coding, tool use, and everyday professional tasks, making it well suited for developers and teams building fast, capable AI agents. Back to Models https://zenmux.ai/models Providers Route requests across multiple providers. Copy a provider slug to set your preference. $2 / M tokens $10 / M tokens Read: 0.2 / M tokens Write: 2.5-4 / M tokens1M2.49s73.8tps $2 / M tokens $10 / M tokens Read: 0.2 / M tokens Write: 2.5-4 / M tokens1M1.95s99.8tps Uptime 24hours Direct request success rate on AI Gateway and per-provider. Throughput 24hours P50 throughput on live AI Gateway traffic, in tokens per second TPS . Latency 24hours P50 time to first token TTFT on live AI Gateway traffic, in milliseconds. Activity Token volume and request traffic to this model over time. Benchmarks Scores on standardized evaluations. Higher percentages are better — and rank percentile shows Metrics sourced from Artificial Analysis https://artificialanalysis.ai/ Apps Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for. View All https://zenmux.ai/analytics/apps Related Models More models from Anthropic https://zenmux.ai/anthropic