Anthropic has launched Claude Fable 5.1 and Claude Mythos 5.1, with a primary focus on reducing costs for users. Fable 5.1 is projected to be approximately 25% cheaper for typical workloads compared to its predecessor, Fable 5. The most significant savings are observed in highly agentic tasks and complex coding, where costs could be slashed by up to 45%. This price reduction is primarily driven by a 75% decrease in the cost of cache reads, which are now priced at $0.25 per million tokens.
This strategic move comes as Anthropic prepares for a potential initial public offering (IPO), which could value the company at $2 trillion, potentially making it the largest IPO on record, surpassing SpaceX. The decision to release a cheaper model addresses concerns among customers who have been gravitating towards less expensive models from Anthropic's lineup. Data from Ramp, covering 70,000 companies, indicates that spending on the more powerful Fable 5 model has never exceeded about 11% of total expenditures on Anthropic's tools, with many customers opting for older, more affordable alternatives that adequately meet their business needs.
Analysts and investors suggest that this trend away from the most powerful and expensive AI models is not a temporary anomaly. Miles Clements, a partner at Accel, an investor in Anthropic, noted that the era where customers exclusively opted for frontier models was not sustainable, as most don't require the most advanced capabilities. This shift in customer preference highlights the importance of cost-efficiency, especially for an AI company like Anthropic, which is aggressively spending ahead of its highly anticipated public listing. The relaunch of Fable 5, after its initial withdrawal due to national security concerns, has seen price and performance remain key determinants for customer choice, rather than a strong pull towards the most advanced offerings.
Furthermore, Anthropic is reportedly considering rolling out another new AI model to compete with OpenAI’s GPT-6 Astra, which has gained significant traction in enterprise AI spending, capturing about 13% compared to Claude Fable’s 8%, according to Ramp. This competitive pressure, alongside the upcoming IPO, scheduled potentially after the November US midterm elections, underscores Anthropic's efforts to solidify its market position and financial outlook. The company's CEO, Dario Amodei, had previously called for an industry-wide slowdown, yet the company is now actively strategizing to counter rival momentum and prepare for its public debut.
