{
  "schemaVersion": 1,
  "id": "microsoft-mai-base-2",
  "provider": "microsoft",
  "name": "MAI-Base-2",
  "lastVerifiedAt": "2026-10-15T19:04:59.980978Z",
  "sourceUrls": [
    "https://microsoft.ai/news/frontier-pre-training-at-microsoft-ai/",
    "https://azure.microsoft.com/en-us/pricing/details/ai-foundry-models/microsoft/",
    "https://ai.azure.com/catalog"
  ],
  "announcementDate": "2026-10-15",
  "availability": "post-training",
  "publicApiModelId": null,
  "publicEndpoint": null,
  "publicWeightsUrl": null,
  "pricing": {
    "currency": "USD",
    "inputPerM": null,
    "outputPerM": null,
    "status": "not-published",
    "note": "No MAI-Base-2 token rate or licensing fee is published in the reviewed official announcement, Microsoft model pricing page or public catalog. Null means unknown, not free."
  },
  "licensing": {
    "status": "future-intent",
    "note": "Microsoft says this will enable licensing model weights to trusted partners through Foundry; no public download or license terms are announced."
  },
  "specifications": {
    "totalParameters": 2800000000000,
    "activeParameters": 80000000000,
    "trainingGpus": 16000,
    "trainingGpuType": "NVIDIA GB200",
    "trainingDays": 38,
    "trainingTokens": 50000000000000,
    "nativeVisionPretraining": true
  },
  "vendorClaims": {
    "pretrainingFlopsEfficiencyVsDeepSeekV4ProBase": {
      "min": 4.2,
      "max": 12.3,
      "scope": "Microsoft scaling-law estimates at matched held-out bits-per-byte; not inference speed, API price, independent score or total training bill."
    }
  },
  "labs": {
    "status": "blocked-unreleased-route",
    "reason": "Still undergoing post-training; no public exact-model route, weights, token rate or authorized Labs access verified. Vendor-held-out BPB comparisons are not Labs results.",
    "unblockRequirements": [
      "Official exact model ID and authorized endpoint or pinned weights/license",
      "Serving configuration, fixed tasks and acceptance rubric",
      "Raw responses, token counts, latency, retries and complete cost ledger"
    ]
  },
  "articlePath": "/news/microsoft-mai-base-2-frontier-pretraining-pricing-impact-october-2026/",
  "providerPath": "/microsoft-ai-pricing/",
  "maintenance": {
    "owner": "aipricing-data",
    "cadenceDays": 1,
    "watch": "daily pricing-asset-watch official-source and freshness checks; review and republish paired records on access or pricing change"
  }
}