OpenAI is expanding into Asia with a new office in Tokyo, Japan, where they are releasing a custom GPT-4 model optimized for the Japanese language. This custom model offers improved performance in translating and summarizing Japanese text, operates up to 3x faster than GPT-4 Turbo, and is more cost-effective. As an example, the English learning app Speak is seeing 2.8x faster tutor explanations in Japanese with a 47% reduction in token cost when using this model. OpenAI plans to provide broader access to this Japanese language model through their API in the coming months. The introduction of this localized AI model demonstrates OpenAI’s commitment to developing safe and tailored AI tools that meet the unique needs of the Japanese market.

Summarized by Claude 3 Sonnet