Microsoft wants to train its own leading-edge models
The results of MAI-Base-2 give an industrial capacity signal, not a new button in Copilot.
Pre-training results, not an available product
Facts, analysis and limits
Verified facts
- MAI-Base-2 is presented as the basis for the next generation of models, still in post-training.
- Microsoft claims an efficiency in pre-training FLOPs 4 to 12 times higher than DeepSeek-V4-Pro-Base on its internal evaluations.
- The article already mentions preparations for MAI-Base-3; it does not publish API access, pricing or weights for MAI-Base-2.
What changes
The infrastructure and training strategy deserves to be followed without confusing the basic model with the ready-to-use assistant.
Practical implication
Wait for dissemination modalities and external evaluations before changing your tool choices.
Availability
Public technical article and PDF; no new model for use in Belgium/EEA established by this announcement.
Limits and uncertainty
Vendor comparison on selected evaluations and pre-training cost: not an independent measure of inference cost or a guarantee of production superiority.