Updated: Anthropic Introduces Claude Fable 5.1 and Limited Mythos 5.1

Claude Fable 5.1 offers a million-token context window, cheaper cache reads, and updated cyber protections.

Claude Fable 5.1 offers a million-token context window, cheaper cache reads, and updated cyber protections.

Anthropic reportedly told investors that its annualized revenue run rate exceeded $65 billion at the end of July 2026, according to several media outlets. This is an unaudited run rate, not full-year revenue.

A federal court in California halted Pentagon measures against Anthropic. Judge Rita Lin called the government’s actions unconstitutional retaliation for the company’s protected speech.