Model Comparison

MAI-Code-1-Flash vs GPT-5.5Which is better in 2026?

GPT-5.5 significantly outperforms across most benchmarks.

Verdict: MAI-Code-1-Flash vs GPT-5.5 — which is better?

MAI-Code-1-Flash (by Microsoft) and GPT-5.5 (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

MAI-Code-1-Flash outperforms in 0 benchmarks, while GPT-5.5 is better at 6 benchmarks (FrontierMath, GPQA, Humanity's Last Exam, SWE-Bench Pro, Tau2 Telecom, Terminal-Bench 2.0). GPT-5.5 significantly outperforms across most benchmarks.

Choose MAI-Code-1-Flash if…

  • you want the most recent training data — it shipped Jun 2026

Choose GPT-5.5 if…

  • you want the strongest raw capability — it leads on 6 of 6 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

MAI-Code-1-Flash outperforms in 0 benchmarks, while GPT-5.5 is better at 6 benchmarks (FrontierMath, GPQA, Humanity's Last Exam, SWE-Bench Pro, Tau2 Telecom, Terminal-Bench 2.0).

GPT-5.5 significantly outperforms across most benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-5.5 specifies input context (1,050,000 tokens). Only GPT-5.5 specifies output context (128,000 tokens).

Microsoft
MAI-Code-1-Flash
Input- tokens
Output- tokens
OpenAI
GPT-5.5
Input1,050,000 tokens
Output128,000 tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.5 supports multimodal inputs, whereas MAI-Code-1-Flash does not.

GPT-5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

MAI-Code-1-Flash

Text
Images
Audio
Video

GPT-5.5

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

MAI-Code-1-Flash

Proprietary

Closed source

GPT-5.5

Proprietary

Closed source

Release Timeline

When each model was launched

MAI-Code-1-Flash was released on 2026-06-02, while GPT-5.5 was released on 2026-04-23.

MAI-Code-1-Flash is 1 month newer than GPT-5.5.

MAI-Code-1-Flash

Jun 2, 2026

1 months ago

1mo newer
GPT-5.5

Apr 23, 2026

2 months ago

Knowledge Cutoff

When training data ends

GPT-5.5 has a documented knowledge cutoff of 2025-12-01, while MAI-Code-1-Flash's cutoff date is not specified.

We can confirm GPT-5.5's training data extends to 2025-12-01, but cannot make a direct comparison without MAI-Code-1-Flash's cutoff date.

MAI-Code-1-Flash

—

GPT-5.5

Dec 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Microsoft

No standout differentiators in the data we have for this pair.

OpenAI
Larger context window (1,050,000 tokens)
Supports multimodal inputs
Higher FrontierMath score (35.4% vs 6.3%)
Higher GPQA score (93.6% vs 84.6%)
Higher Humanity's Last Exam score (52.2% vs 18.0%)
Higher SWE-Bench Pro score (58.6% vs 51.2%)
Higher Tau2 Telecom score (98.0% vs 71.7%)
Higher Terminal-Bench 2.0 score (82.7% vs 54.8%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against MAI-Code-1-Flash and GPT-5.5 side-by-side, then vote on the output you prefer.

MAI-Code-1-Flash
✓ Preferred
GPT-5.5
Open in Playground
AI Model Comparison Table
Feature
Microsoft
MAI-Code-1-Flash
OpenAI
GPT-5.5

FAQ

Common questions about MAI-Code-1-Flash vs GPT-5.5.

Which is better, MAI-Code-1-Flash or GPT-5.5?

GPT-5.5 significantly outperforms across most benchmarks. MAI-Code-1-Flash is made by Microsoft and GPT-5.5 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does MAI-Code-1-Flash compare to GPT-5.5 in benchmarks?

MAI-Code-1-Flash scores AIME 2026: 92.5%, GPQA: 84.6%, IFBench: 75.0%, Tau2 Telecom: 71.7%, SWE-Bench Verified: 71.6%. GPT-5.5 scores Tau2 Telecom: 98.0%, ARC-AGI: 95.0%, GPQA: 93.6%, ARC-AGI v2: 85.0%, GDPval-MM: 84.9%.

What are the context window sizes for MAI-Code-1-Flash and GPT-5.5?

MAI-Code-1-Flash supports an unknown number of tokens and GPT-5.5 supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between MAI-Code-1-Flash and GPT-5.5?

Key differences include multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes MAI-Code-1-Flash and GPT-5.5?

MAI-Code-1-Flash is developed by Microsoft and GPT-5.5 is developed by OpenAI.

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