Anthropic unveils new Fable, Mythos models as competition heats up ahead of IPO

Anthropic on Monday unveiled two new AI models, Claude Fable 5.2 and Claude Mythos 5.2, as the OpenAI rival looks to strengthen its position in the fast-growing AI market ahead of its planned IPO.

Here are more details:

Claude Fable 5.2 targets coding, reasoning and AI agent tasks, while Claude Mythos 5.2 targets approved cybersecurity and life-sciences research applications


Anthropic said access to Claude Mythos 5.2 is restricted to organizations approved through its verification programs for cybersecurity and life-sciences research, while Claude Fable 5.2 is available more broadly

Anthropic said the new models generate outputs up to 30% faster than their Claude 5.1 predecessors and communicate more clearly with users

The company said the models are priced at $8 per million input tokens and $40 per million output tokens, lower than the pricing for previous Fable and Mythos releases

The launch follows Anthropic's rollout of Claude Haiku 5.5 in October as the AI startup broadens its product lineup ahead of a planned IPO

Competition in the AI industry has also intensified as OpenAI, Alphabet's Google and Meta Platforms rapidly release new models focused on coding, reasoning and AI agents to attract developers and enterprise customers