# MAI-Thinking-1: SI Model Safety Record

> MAI-Thinking-1 is an SI model from Microsoft. The Containment Board lists it as a flagship model of Microsoft, which gets C+ overall. Sources linked.

Source: https://enterrsi.si/encyclopedia/mai-thinking-1/
Updated: 2026-11-08

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RSI Encyclopedia · Model

# MAI-Thinking-1

MAI-Thinking-1 is an SI model from Microsoft. The Containment Board lists it as a flagship model of Microsoft, which gets C+ overall.

Developer
:   Microsoft

Type
:   SI model

Rogue Log cases
:   0

Lab grade
:   C+

## What the sources document

This entry only states what the sources on enterrsi.si document. Release dates, sizes and other specifications are left out unless a source here gives them.

- The public record for its own MAI models is thin: the MAI-Thinking-1 report describes red teaming but gives no frontier risk classification or government testing. Containment Board, summary
- The MAI-Thinking-1 technical report (June 2026) describes internal red teaming, Microsoft's separate red team and third-party vendors, but names no outside evaluator of dangerous capabilities and no government pre-release testing. Containment Board, outside testing
- The MAI-Thinking-1 report gives safety benchmark results but no frontier risk classification. Containment Board, incident disclosure

## Grade context

The Containment Board grades labs, not single models. Microsoft gets **C+** overall, rank 4 of 11, on the commitments that decide whether its models can be tested, contained and stopped. See the [full report card](https://enterrsi.si/containment-board/microsoft/).

- Safety frameworkB-
- Outside testingC
- Shutdown and pauseB-
- Incident disclosureC
- Whistleblower protectionC+

## Sources

1. [MAI-Thinking-1: Building a Hill-Climbing Machine](https://microsoft.ai/wp-content/uploads/2026/06/main_20260602_2.pdf) Microsoft AI · Jun 2, 2026
2. [Frontier Governance Framework (February 2026)](https://cdn-dynmedia-1.microsoft.com/is/content/microsoftcorp/microsoft/msc/documents/presentations/CSR/Frontier-Governance-Framework-Feb-2026.pdf) Microsoft · Feb 13, 2026

The model

Model
:   MAI-Thinking-1

Developer
:   Microsoft

On the board
:   Yes, as a flagship

Highest Rogue Scale level
:   None recorded

Developer

[Microsoft **Lab**](https://enterrsi.si/encyclopedia/microsoft/)

Other Microsoft models

- [MAI-Cyber-1.1-Flash](https://enterrsi.si/encyclopedia/mai-cyber-1-1-flash/)
- [Bing Chat](https://enterrsi.si/encyclopedia/bing-chat/)

Related terms

[Frontier model **Term**](https://enterrsi.si/encyclopedia/frontier-model/)

Cite this entry

"MAI-Thinking-1." The RSI Encyclopedia, enterrsi.si, November 8, 2026. https://enterrsi.si/encyclopedia/mai-thinking-1/

Free to cite under CC BY 4.0 with a link to enterrsi.si.

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