Anthropic Unveils Haiku 4.5, A Powerful Yet Affordable AI

San Francisco – Artificial intelligence startup Anthropic has unveiled a major upgrade to its smallest AI model, introducing Haiku 4.5, designed to deliver high performance at a fraction of the cost of its more advanced systems.

The new model is reported to be one-third the cost of Sonnet 4, a medium-sized Anthropic model, and one-fifteenth the cost of Opus, the company’s top-tier AI. Despite the lower price, Haiku 4.5 matches or even surpasses Sonnet 4 in multiple applications, including coding, content generation, and data analysis.

With businesses increasingly wary of high computational expenses, Haiku 4.5 provides an economical option for companies eager to scale AI across hundreds or thousands of employees. “Small models really help because they can be a more economical way of deploying into that,” said Mike Krieger, Anthropic’s chief product officer.

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The launch of Haiku 4.5 comes amid rising demand from traditional companies outside Silicon Valley, which often prefer more affordable, yet capable AI solutions. According to Anthropic, 80% of its revenue comes from enterprise clients, with over 300,000 organizations using Anthropic tools internally or for product development. The company’s annual revenue run rate is estimated at nearly $7 billion.

Anthropic, founded in 2021 by former OpenAI employees and last valued at $183 billion, competes closely with other AI giants. While early AI hype focused on the most powerful models, the high costs of training and operating them—sometimes exceeding $100 million—prompted the industry to rethink scalable solutions. Companies now often combine models, using smaller systems for routine tasks and larger AI for strategy and decision-making.

Haiku 4.5 marks the first update to Anthropic’s smallest AI model in about a year, signaling the company’s focus on affordable AI accessibility without compromising quality. This move is expected to make AI adoption easier for companies worldwide and further broaden Anthropic’s presence in global markets.