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Data checked September 25, 2026
Data checked September 25, 2026
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Microsoft

Microsoft · MAI

MAI-Thinking-1

Closed weightsPreviewproprietary

Microsoft AI's first in-house reasoning LLM (sparse MoE, ~1T total / 35B active), offered in preview on Microsoft Foundry for reasoning and coding.

AA Intelligence
—
Input / output per 1M
$2.00/ $8.00
Output speed
—
Context window
256K tokens

Coding

  • SWE-bench Pro#23 of 31
    52.8%vendor256k context; bash + str_replace toolsMAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: Claude Opus 5.5 at 89.9%

  • SWE-bench Verified#8 of 16
    73.5%vendor256k contextMAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: Claude Sonnet 5 at 85.2%

  • Terminal-Bench 2.x#63 of 103
    46%vendorTerminal-Bench 2.0; bash tool onlyMAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: Claude Fable 5.1 at 91.4%

  • LiveCodeBench#6 of 56
    87.7%vendorv6MAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: Fugu at 92.9%

Reasoning and knowledge

  • AIME 2026#6 of 13
    94.5%vendorAIME 2026MAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: ERNIE 5.1 at 99.6%

  • HMMT February 2026#5 of 8
    84.9%vendorHMMT Feb 2026MAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: GLM-5.2 at 92.5%

  • GPQA Diamond#62 of 142
    84.2%vendorMAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: GPT-6 Astra at 96.1%

  • MMLU-Pro#3 of 14
    85%vendorMAI-Thinking-1 technical report (Table 11/12) ↗

    Leader: Nemotron 3 Ultra 550B A55B at 86.8%

Other published results

ResultScoreReported bySource
aime-2025 · AIME 202597%vendorMAI-Thinking-1 technical report (Table 11/12) ↗
IFBench69%vendorMAI-Thinking-1 technical report (Table 11/12) ↗
SimpleQA Verified31%vendorMAI-Thinking-1 technical report (Table 11/12) ↗
BFCL v372%vendorMAI-Thinking-1 technical report (Table 11/12) ↗
GraphWalks (<=128k)90%vendorMAI-Thinking-1 technical report (Table 11/12) ↗

Specs

Released
June 2, 2026
Parameters
1T total, 35B active
Size class
1 to 2T
Input
text
Output
text
Context
256K tokens
Max output
64K tokens
Cached input
$0.20 / 1M
Blended 70/30
$3.80 / 1M
  • Price: Azure Retail Prices API: MAI Models ↗ Microsoft Foundry global deployment list rate (Azure retail price meters "MAI-Thinking-1 Inp/Opt/Cd Inp glbl", effective 2026-08-01). Model is in Preview.

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Compare with

  • MicrosoftMAI-Code-1.1-Flash
  • MicrosoftPhi-45.9
  • MicrosoftPhi-4 Mini Instruct6.3
  • MicrosoftPhi-4 Multimodal Instruct5.8