Anthropic's Claude Opus 5 Matches Fable 5 Quality at Half the Cost

Full text

Credit: Anthropic

TL;DR

Anthropic has announced the launch of Claude Opus 5.

The new model is described as coming close to Fable 5, but at half the cost.

The company claims that the model doubles the performance of its predecessor on knowledge work and software engineering tasks.

Google just pulled the covers off of Gemini 3.6 , as well as two new entries in the 3.5 Flash line. Not to be outdone, Anthropic is unveiling a new model of its own. This model adds on to the Opus series and is said to give the company’s powerful Fable 5 model a run for its money.

Anthropic has announced the launch of Claude Opus 5, which is described as being more efficient than other models. In the blog post , the company heaps praise upon the model, claiming that it approaches Fable 5 levels of intelligence, but at half the cost. It also claims that Opus 5 is “state-of-the-art” when it comes to coding and knowledge work, but trails behind Mythos 5 on cybersecurity tasks.