Anthropic's Claude Fable 5 cost $6,227 to benchmark on the Intelligence Index, using 87 million output tokens. Here's why frontier AI is getting expensive.

Last week, Anthropic launched Fable 5 — their most powerful model ever — free for all Pro/Max...

Anthropic's Claude Fable 5 scores 161 on the Epoch Capabilities Index, beating GPT-5.5 Pro with dominant results on FrontierMath and SWE-Bench Pro

Anthropic's Claude Fable 5 cost $6,227 to benchmark on the Intelligence Index, using 87 million output tokens. Here's why frontier AI is getting expensive.