MAI-Base-2
MAI-Base-2 is an announced but not yet released language model from Microsoft, released October 15, 2026. Its makers disclosed about 2.8T parameters.
In June, we announced MAI-Thinking-1, a general-purpose foundation model post-trained on top of MAI-Base-1 with strong reasoning performance. We’ve recently completed pre-training our new state-of-the-art model, MAI-Base-2, an MoE foundation model with 80 billion active and 2.8 trillion total parameters.
Check it against your own PC →
Lab
Microsoft
Released
October 15, 2026
Weights
announced but not yet released
Parameters
2.8T disclosed
Context
–
Price / M tokens
–
Epoch ECI
not yet rated
Benchmark results
Epoch AI has not published results for MAI-Base-2 yet. New models are usually evaluated within days to weeks.
Links
More from Microsoft
MAI-Cyber-1.1-Flash · MAI-Cyber-1-Flash · MAI-Code-1.1-Flash · Mage VL · MAI-Thinking-1 · MAI-Code-1-Flash · Phi-4 · phi-3-small 7.4B