Anthropic has launched Claude Fable 5.2 and Claude Mythos 5.2, its first new frontier AI models since chief executive Dario Amodei called for a slowdown in AI development.
The releases come as attention around Anthropic’s potential stock market listing grows. The new models improve coding, reasoning, and visual understanding and the company positions them for complex technical and scientific work.
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Claude Fable 5.2 and Mythos 5.2: What Has Changed?
Both models share the same underlying technology, but differ in access and safeguards. Fable 5.2 is available to users with protections against potentially harmful cybersecurity and biological research applications. Mythos 5.2 is restricted to organisations approved through Anthropic’s Cyber Verification and Life Sciences programmes.
Anthropic said the new models generate responses up to 30% faster than their 5.1 versions and cost less. Pricing starts at $8 per million input tokens and $40 per million output tokens. An optional fast mode can increase generation speeds by up to 2.5 times.
Also Read: IPO-Bound Anthropic Warns of ‘Existential Risks to Humanity’
Anthropic Defends its AI safety approach Amid Competitive Pressure
The launch is Anthropic’s first release of frontier models since Amodei called for a slower pace of AI development in September. The company said the models underwent extensive safety and alignment testing, including new evaluations and post-launch monitoring measures.
Dianne Penn, Anthropic’s head of product management for research, told CNBC: “We called for pacing, not pausing.”
Penn said Fable 5.2 is aimed primarily at power users handling complex, open-ended work in engineering, mathematics and robotics. Anthropic recommends Claude Opus 5.5 for routine coding and knowledge tasks, with Fable 5.2 reserved for more demanding assignments.
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Anthropic Targets $1.5 Trillion Valuation Ahead of IPO
The model launch comes as Anthropic prepares for a potentially major initial public offering (IPO), which could take place as soon as next week.
The company is reportedly targeting a valuation of $1 trillion to $1.5 trillion, below the $2 trillion figure discussed in recent months. Its amended prospectus showed revenue of $33.24 billion for the nine months ended 30 September, up around 1,200% from the same period last year.
The company now faces the task of demonstrating that its approach to AI safety can keep pace with its commercial ambitions. The latest releases put that balance under scrutiny as Anthropic prepares to make its case to public market investors.
For the market, the real question is whether Anthropic can sustain its rapid commercial growth while maintaining the safety commitments that distinguish its public positioning. That will be an important point for investors to watch as the company moves towards its anticipated IPO.
Samarjit Kaur is a journalist and communications professional covering technology & emerging digital trends. With a focus on clarity and context, she reports on developments shaping industries and governance. When not reporting, she chooses to plug-in and relax on her playlists and plan her next bucket-list trips!
