● Covered by 1 source · 1 reportLow impact1 neutral
Claude Opus 5.5 Intelligence, Performance, and Price Analysis
Key points
- Claude Opus 5.5 released on September 22, 2026, by Anthropic.
- Scores 58 on Artificial Analysis Intelligence Index (median: 25).
- Input pricing: $4.00/1M tokens (median: $2.00).
- Output pricing: $20.00/1M tokens (median: $10.00).
Model Overview
Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) is a language model developed by Anthropic, released on September 22, 2026. It supports text and image input, generates text output, and features a 1M token context window.
Intelligence and Performance
The model achieved a score of 58 on the Artificial Analysis Intelligence Index, which is significantly above the median score of 25 for comparable models. During evaluation, it generated 260M tokens, indicating a verbose output compared to the median of 92M tokens.
Pricing Structure
Claude Opus 5.5 is priced at $4.00 per 1M input tokens and $20.00 per 1M output tokens. These prices are considered somewhat expensive when compared to the median pricing of $2.00 per 1M input tokens and $10.00 per 1M output tokens for similar models. The total cost to evaluate this model on the Intelligence Index was $8708.20.
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Primary sources
GitHub meta-llama/llama-models GitHub deepseek-ai/DeepSeek-V2 GitHub QwenLM/Qwen GitHub deepseek-ai/deepseek-LLM GitHub deepseek-ai/DeepSeek-Coder-V2 GitHub MiniMax-AI/MiniMax-M2Reporting from
An analysis of Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) shows it scores 58 on the Artificial Analysis Intelligence Index, placing it above average among comparable models. However, its pricing at $4.00 per 1M input tokens and $20.00 per 1M output tokens is considered somewhat expensive compared to the median for similar models.