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2026 comparison

Microsoft MAI-Thinking-1 vs ChatGPT-5.5

Side-by-side analysis, no fluff. We've tested both in real-world conditions.

Summary table

Criterion
M

Microsoft MAI-Thinking-1

Paid

C

ChatGPT-5.5

Freemium

Score
4.5 / 5
4.9 / 5
Category
Chatbots & Assistants
Chatbots & Assistants
Pricing model
Paid
Freemium
Starting price
$20/mo
Badge
New
M

What's best about Microsoft MAI-Thinking-1

  • Advanced reasoning chain-of-thought processing
  • Outstanding performance in complex mathematical algorithms
  • Highly integrated into Azure Foundry and Microsoft 365
  • Offline enterprise deployment options for data security
C

What's best about ChatGPT-5.5

  • Excellent speed-to-intelligence ratio with GPT-5.5 Instant
  • Massive 512K context window for flagship GPT-5.5
  • Very competitive API token pricing ($4/$12 per 1M)
  • Superb developer and Custom GPT ecosystem
C

What's weakest about ChatGPT-5.5

  • Trails Claude Fable 5 on complex multi-file software engineering tasks
  • Plus consumer caps still apply during peak traffic hours
Quick verdict

ChatGPT-5.5 is the obvious pick if you value flagship intelligence with gpt-5.5 and ultra-fast gpt-5.5 instant..

Frequently asked questions

Which is better, Microsoft MAI-Thinking-1 or ChatGPT-5.5?+

In our tests, ChatGPT-5.5 (4.9/5) edges out Microsoft MAI-Thinking-1 (4.5/5). ChatGPT-5.5: Flagship intelligence with GPT-5.5 and ultra-fast GPT-5.5 Instant.

Does Microsoft MAI-Thinking-1 have a free plan?+

No, Microsoft MAI-Thinking-1 is paid-only.

Does ChatGPT-5.5 have a free plan?+

Yes, ChatGPT-5.5 has a free plan available. Paid plans start at $20/mo.

How does Microsoft MAI-Thinking-1 differ from ChatGPT-5.5?+

Microsoft MAI-Thinking-1 stands out for: Advanced reasoning chain-of-thought processing; Outstanding performance in complex mathematical algorithms. ChatGPT-5.5 excels at: Excellent speed-to-intelligence ratio with GPT-5.5 Instant; Massive 512K context window for flagship GPT-5.5.