Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max)

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Analysis of Anthropic’s Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.

Opening excerpt

Compare Try it out API Provider Benchmarks Model summary Intelligence Updated # 1 / 212 58 Artificial Analysis Intelligence Index 4 out of 4 units for Intelligence. Speed N/A Output tokens per second Unknown out of 4 units for Speed. Cost # 87 / 212 In $4.00 Out $20.00 Cache Discount 95% $5.98 Cost per Intelligence Index task 4 out of 4 units for Cost. Verbosity # 95 / 212 260M Output tokens from Intelligence Index 4 out of 4 units for Verbosity. Comparison Summary Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) is amongst the leading models in intelligence, but somewhat expensive when comparing to other models of similar price. The model supports text and image input, outputs text, and has a 1M tokens context window.

Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) scores 58 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models (median: 25). When evaluating the Intelligence Index, it generated 260M tokens, which is very verbose in comparison to the median of 88M.

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