Claude Opus 5.5 is a model from Anthropic. Its posted API price is $4.00 per 1M input tokens and $20.00 per 1M output tokens, or $8.00 per 1M tokens blending 3 input tokens with 1 output token. Its price has not changed since Sep 23, 2026. It carries 58.2% of Anthropic's API tokens and is one of the 6 models in the Anthropic token price index, $6.37 per 1M tokens today. Of the 30 models in the token index it is the 4th most expensive. At today's H100 rental price of $3.69 per GPU-hour, its break-even throughput is 128 tokens per second per GPU. Prices are collected once a day, for each UTC day.
Models near this price
Claude Opus 5 (Anthropic): $10.00 per 1M tokens, $5.00 input and $25.00 output
GPT-5.6 Sol (OpenAI): $8.00 per 1M tokens, $4.00 input and $20.00 output
Kimi K3 (Moonshot AI): $6.00 per 1M tokens, $3.00 input and $15.00 output
Claude Sonnet 5.5 (Anthropic): $4.00 per 1M tokens, $2.00 input and $10.00 output
Claude Sonnet 5 (Anthropic): $4.00 per 1M tokens, $2.00 input and $10.00 output
GPT-6.1 Sol (OpenAI): $4.00 per 1M tokens, $2.00 input and $10.00 output