Microsoft AI CEO Mustafa Suleyman said its new MAI-Base-2 model beats OpenAI’s GPT 5.6 Sol. It used one quarter of the compute OpenAI used. It also used twelve times less compute than DeepSeek’s V4-Pro-Base. Microsoft tested it privately against OpenAI models. The model was announced on the same day. Microsoft has a major partnership with OpenAI. The relationship between the two has frayed recently. Microsoft is now building its own models more aggressively.

• 1/4 the compute of OpenAI’s GPT 5.6 Sol model
• 12x less compute than DeepSeek-V4-Pro-Base