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New models, rollouts into products, new capabilities. Every change is backed by its source and dated by when it happened, not by when we wrote it down. Whether a statement still holds today is a separate check — where that is pending, it says “not verified”.

Last change recorded (yesterday)957 sourced entries · 166 source documents

Most recent changeDeployment5 months ago

GPT-5.5 is rolling out in Microsoft 365 Copilot — as reported then; current state not verified

An existing model reached — or left — a product. Wider use, not a new capability.

Provider
OpenAI
In products
confirmed in 2 products
Open the model →
20262025-03: 1 sourced changes12025-06: 1 sourced changes12025-08: 1 sourced changes12025-09: 2 sourced changes22025-12: 1 sourced changes12026-03: 1 sourced changes12026-04: 1 sourced changes1
Sourced changes per month · max 2Month of the time each update states (effective time).
Entries 1–25 of 25 · shown in 11 rows (record-keeping folded per day)

ModelsDeploymentProductRecordCorrectionThe date is when it happened according to the source.

Show movement only

Every entry is shown — also record-keeping (a documented model identity, a state a source check found in place) and confirmations (checks that found an existing state unchanged). Neither means something happened that day.

October 2026

  1. 12 days ago

    14 record-keeping entries: identities and states found in place

    RecordRecord-keeping: a model’s identity was documented, or a source check found a state in place. The date is when it was recorded, not when something happened.

    Show the entries (14)
    1. Availability
      GPT-6 AstrainMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    2. Availability
      GPT-5.6 TerrainMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    3. Availability
      GPT-5.6 SolinMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    4. Availability
      GPT-5.5inMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    5. Availability
      Claude Sonnet 5inMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    6. Availability
      Claude Opus 5inMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    7. Availability
      Claude Fable 5.1inMicrosoft 365 CopilotCoworknew→Limited availability
      1learn.microsoft.com
    8. Availability
      MAI-Code-1.1-FlashinGitHub Copilotnew→Limited availability
      1docs.github.com
    9. Availability
      MAI-Code-1.1-FlashinGitHub CopilotCopilot · Pronew→Limited availability
      1docs.github.com
    10. Availability
      MAI-Code-1.1-FlashinGitHub CopilotCopilot · Pro Plusnew→Limited availability
      1docs.github.com
    11. Availability
      MAI-Code-1.1-FlashinGitHub CopilotCopilot · Maxnew→Limited availability
      1docs.github.com
    12. Availability
      MAI-Code-1.1-FlashinGitHub CopilotCopilot · Enterprisenew→Limited availability
      1docs.github.com
    13. Availability
      MAI-Code-1.1-FlashinGitHub CopilotCopilot · Businessnew→Limited availability
      1docs.github.com
    14. Model identity documented
      MAI-Code-1.1-FlashMicrosoftnew→Identity documented · release unknown
      1docs.github.com

September 2026

  1. 16 days ago

    2 models documented in the record

    RecordRecord-keeping: a model’s identity was documented, or a source check found a state in place. The date is when it was recorded, not when something happened.

    Show the entries (2)
    1. Model identity documented
      Phi-4-mini-instructMicrosoftnew→Identity documented · release unknown
      1huggingface.co
    2. Model identity documented
      MAI-Thinking-1Microsoftnew→Identity documented · release unknown
      1microsoft.ai

July 2026

  1. 3 months agoadded to the record on 29 Sept 2026

    Microsoft 365 Copilot

    DeploymentMicrosoft

    1techcommunity.microsoft.com

March 2026

  1. 7 months agoadded to the record on 29 Sept 2026

    GPT-5.4 is rolling out in Microsoft 365 Copilot — as reported then; current state not verified

    DeploymentOpenAI

    1techcommunity.microsoft.com

December 2025

  1. 10 months agoadded to the record on 29 Sept 2026

    GPT-5.2 is rolling out in Microsoft 365 Copilot — as reported then; current state not verified

    DeploymentOpenAI

    1www.microsoft.com

September 2025

  1. 12 months agoadded to the record on 29 Sept 2026

    Microsoft 365 Copilot offers Agent mode with limits

    ProductMicrosoft

    1www.microsoft.com
  2. 12 months agoadded to the record on 29 Sept 2026

    Claude Opus 4.1 is available in Microsoft 365 Copilot with limits — as reported then; current state not verified

    DeploymentAnthropic

    1www.microsoft.com

August 2025

  1. 14 months agoadded to the record on 29 Sept 2026

    GPT-5 is now available in Microsoft 365 Copilot — as reported then; current state not verified

    DeploymentOpenAI

    1www.microsoft.com

June 2025

  1. 16 months agoadded to the record on 29 Sept 2026

    Microsoft 365 Copilot · Deep research: now available

    ProductMicrosoftpreviously: announced

    1www.microsoft.com

March 2025

  1. 19 months agoadded to the record on 29 Sept 2026

    Microsoft 365 Copilot announces Deep research

    ProductMicrosoft

    1www.microsoft.com