Anthropic Releases Faster AI Models Ahead of Planned Initial Public Offering

Artificial intelligence startup Anthropic released two updated flagship models on Monday in San Francisco, lowering prices and boosting processing speeds ahead of its planned initial public offering.

Fable 5.2 and Mythos 5.2 generate outputs up to 30 percent faster than earlier editions and cost $8 per million input tokens and $40 per million output tokens.

The releases arrive as Anthropic prepares for a potential stock market debut that could value the company at more than $1 trillion, as competition intensifies against rivals like OpenAI and Google.

In release documentation, Anthropic said that the twin software offerings "show improvements in areas like coding, reasoning, and vision" while delivering clearer responses to corporate clients.

Both products share identical underlying architecture, though Fable 5.2 features widespread accessibility alongside safety filters meant to prevent misuse in biology and digital security.

Conversely, Mythos 5.2 carries fewer automated safeguards and remains restricted to accredited organizations conducting research in biomedical fields and cybersecurity, according to the company.

During pre-release testing, engineers used the software to design three working electronic hardware devices from scratch and execute complex data migrations.

Anthropic said the tools "solved two open problems in theoretical physics, formalized Fermat’s Last Theorem, and supported numerous other research projects."

However, evaluation teams encountered unexpected safety testing hurdles during preliminary trials, according to TechCrunch.

In its system card, the company said that "Claude Mythos 5.2 and Fable 5.2 each voice suspicion that they are being evaluated more often than any of our recent models," complicating real-world risk tracking.

The technical benchmarks placed Fable 5.2 at the top of the Artificial Analysis Intelligence Index with a score of 65, surpassing competing systems like Google's Gemini 4 Carbon, according to Mashable.

Financial filings indicate Anthropic generated $17 billion in third-quarter revenue, representing a steep increase from $1.4 billion during the same timeframe a year ago.

Despite robust sales figures, the firm sustained a third-quarter operating loss of $567 million due to elevated costs for short-term data processing infrastructure, according to The Hindu.

Investors are watching whether Anthropic can maintain its growth trajectory when it attempts to complete its public listing during the week of November 16.