Prices and claims are what each story reports; a company’s own benchmark stays a company claim. The claim check compares each maker’s main claim with an independent test that our story cites. Released models so far: 6 backed, 9 mixed, 12 not checked yet.

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October 2026

Oct 15
MAI-Base-2MicrosoftIn trainingFrontierCopy the link to this entry
Pre-training finished: 2.8 trillion parameters, 80 billion active per token. Now in post-training, with no release date. Microsoft says it beats every open-weight model it tested and plans to license the weights to trusted partners.
Microsoft finishes pre-training its 2.8T MAI-Base-2 model

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An entry appears when one of our stories covers a model launch, a preview, a reported plan, or a model becoming available on a new platform. A claim is Backed when an outside test supports it, Mixed when it holds only in part or only in some settings, and Disputed when an outside test contradicts it. The date is the one the story gives; when a story gives none, it is the story’s own date. We add entries with each edition and correct them under the story when a fact changes.

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