Anthropic Plans to Launch Two Upgraded AI Models
Anthropic announced on November 9 that it plans to launch Fable 5.2 and Mythos 5.2. The company says the new models process complex tasks up to 30% faster and reduce operating costs by about 20%. The models will serve different user groups as Anthropic prepares for an initial public offering.
Artificial intelligence company Anthropic announced on November 9 that it plans to launch upgraded versions of two models, Fable 5.2 and Mythos 5.2. The company says the new models process complex tasks such as programming up to 30% faster than previous versions, while reducing operating costs by about 20%.
Illustration of artificial intelligence technology.（VietVance）
The two models are based on the same foundation model but differ in who can access them. Fable 5.2 has safeguards designed to block most potentially harmful requests related to cybersecurity and biology and will be widely available to users. Mythos 5.2 has fewer restrictions and will be available only to vetted organizations working in cybersecurity or biomedical research.
The first versions of Fable and Mythos sparked controversy after their launch in June 2026. Citing national security concerns, the U.S. Department of Commerce required Anthropic to restrict access by foreign nationals; those restrictions were lifted a few weeks later.
The planned launch of the new models comes as Anthropic prepares for an initial public offering. The offering is expected during the week of November 16 and aims to raise up to $100 billion. The company is expected to be valued at more than $1 trillion, although some recent estimates have fallen below an earlier peak of $2 trillion.
According to securities filings released in early November, Anthropic reported revenue of $17 billion in the third quarter of 2026, compared with $1.4 billion a year earlier. It recorded an operating loss of $567 million in the same quarter, mainly because of higher costs for short-term computing capacity. Revenue growth slowed from previous quarters amid competition from OpenAI and suppliers of lower-cost models.
Source: VietVance
