Antropic unveils its latest AI model ahead of IPO... Overwhelming 1st place in performance indicators

Antropic, which is preparing for its initial public offering (IPO), has released a new model that significantly improves the performance and price efficiency of its top artificial intelligence (AI) models 'Claude Mythos' and 'Claude Fable'.

It is interpreted as a ploy to strengthen leadership in technological competition with rival companies ahead of listing.

Antropic released the latest versions of its top AI models, 'Claude Mythos 5.2' and 'Claude Fable 5.2', on the 9th (local time).

This model's output generation speed is up to 30% faster than its predecessor, 5.1, and it also introduces a 'fast mode' that increases the inference speed by up to 2.5 times while maintaining the same intelligence level.

At the same time, the AI ​​model usage fee was lowered by 20% from the previous version to $8 to $40 per million tokens. The quick mode usage fee is set at $16 to $80 per million tokens.

In most performance indicators (benchmarks) such as coding performance, cybersecurity ability, and scientific research, it was found to surpass not only its predecessor but also its competitors, OpenAI's GPT-6 Astra and Google's Gemini 4 Carbon.

Artificial Analysis, an AI performance analysis company, also set the intelligence index (AAII) of this model at 65 points, making it the new No. 1 model, well over the 60 points of Gemini 4 Carbon, which previously had the highest score, by 5 points.

In third place is Antropic's next-highest model, 'Claude Opus 5.5' (59 points), and OpenAI's top model, 'GPT-6 Astra', is in fourth place with 57 points.

Antropic explained that Mythos and Fable 5.2 further enhanced scientific and mathematical research capabilities, solving two unresolved problems in theoretical physics and formalizing the proof of ‘Fermat’s Last Theorem’ into code in 30 hours.

In terms of safety, while maintaining a robust cyber and biological risk defense device, blocking unnecessary false positives was reduced by 55% compared to the previous version, thereby improving user convenience.

It is known that Antropic plans to complete its IPO within this month despite negative news such as the sell-off of AI-related stocks and the scandal of Nvidia CEO Jensen Huang.