Microsoft's MAI-Code-1-Flash Scores 51% SWE-Bench Pro with Just 5B Active Params

EvanZhouDev · HackerNews · 5 min read · original

MAI-Code-1-Flash | Microsoft AI

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Discover the latest MAI models, designed for real-world intelligence

Image 5: A watercolor illustration of a thought bubble made up of overlapping pastel circles in pink, yellow, green, and blue, set against a light gray background. ### MAI-Thinking-1Image 6: Two large watercolor curly brackets face each other on a white background. The left bracket is blue and green, while the right bracket is pink and orange. ### MAI-Code-1-FlashImage 7: Watercolor illustration of two flowers with green stems and leaves. The petals are painted in shades of pink, yellow, orange, and green, set against a plain white background. ### MAI-Image-2.5Image 8: A watercolor illustration of a soundwave with soft, overlapping peaks in green, pink, and yellow tones on a light gray background. ### MAI-Transcribe-1.5 All models Image 9: A watercolor illustration of a thought bubble made up of overlapping pastel circles in pink, yellow, green, and blue, set against a light gray background.

MAI-Thinking-1

Built for the complex problems that matter most, with competitive reasoning and top SWE-Bench Pro results at a mid-weight price. Image 10: Two large watercolor curly brackets face each other on a white background. The left bracket is blue and green, while the right bracket is pink and orange.

MAI-Code-1-Flash

Helps your engineering team write better code faster, with a lightweight, agentic model built into GitHub Copilot and VS Code. Image 11: Watercolor illustration of two flowers with green stems and leaves. The petals are painted in shades of pink, yellow, orange, and green, set against a plain white background.

MAI-Image-2.5

Create stunning, design-ready images from any text or photo prompt, with best-in-class Arena ELO scores at a lower price. Image 12: A watercolor illustration of a soundwave with soft, overlapping peaks in green, pink, and yellow tones on a light gray background.

MAI-Transcribe-1.5

Turn noisy audio into precise, domain-specific transcripts, with leading FLEURS and Artificial Analysis accuracy scores.
* Blog ## Featured stories

The latest breakthroughs and updates from within our team

Image 13 ## Building a hill-climbing machine:Launching seven new MAI models

7 min read Image 14 ## MAI-Image-2.5 launches at No. 2 for image editing on Arena

4 min read Image 15 ## Introducing MAI-Code-1-Flash

5 min read All stories
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MAI-Code-1-Flash

MAI-Code-1-Flash

From quick fixes to complex engineering challenges, write better code, faster.

From quick fixes to complex engineering

challenges, write better code, faster.

Try in VS Code

Features

Features

Image 16

Coding task reasoning

Coding task reasoning

MAI-Code-1-Flash plans and reasons through complex coding tasks from start to finish, so you spend less time debugging and more time building.

MAI-Code-1-Flash plans and reasons

through complex coding tasks from

start to finish, so you spend less time

debugging and more time building.

Image 17

Agentic execution

Agentic execution

Takes initiative across multi-step workflows, making decisions and adapting autonomously without waiting for input.

Takes initiative across multi-step

workflows, making decisions and adapting

autonomously without waiting for input.

Broad programming language support

Broad programming

language support

Fluent across programming languages, frameworks, and ecosystems.

Image 18: The Python programming language logo featuring two interlocking snake shapes, one blue and one yellow, each with a white dot resembling an eye, forming a stylized "P" design.Image 19: A red hexagon with a large white letter "C" and two plus signs ("++") to its right, representing the C++ programming language logo.Image 20: A blue shield-shaped logo with a white number three in the center, representing the CSS3 web design standard.Image 21: An orange shield-shaped logo with a white number 5 in the center, representing the HTML5 web technology standard.Image 22: A purple circle with ".NET Core" written in white text, representing the .NET Core software framework logo.Image 23: A stylized red logo featuring a rising swirl of steam above a cup, representing the Java programming language.Image 24: Yellow square background with large, bold black letters "JS" in the bottom-right corner, representing the JavaScript programming language logo.Image 25: A blue square with the white uppercase letters "TS" centered inside, representing the logo for TypeScript.

Image 26: A code editor window displays JavaScript code for creating a canvas animation, overlaid on a blurred pink background with soft, abstract shapes.

Optimized for GitHub Copilot in VS Code

Optimized for GitHub

Copilot in VS Code

Custom-trained for native VS Code integration, working better together with GitHub Copilot.

Custom-trained for native VS Code

integration, working better together with

GitHub Copilot.

Performance

Performance

SWE-Bench Pro

51.2 %

Coding capabilities

AIME 2026

92.5 %

Math performance

IFBench

75 %

Instruction following

Dig Deeper

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Try MAI-Code-1-Flash

Try MAI-Code-1-Flash

GitHub Copilot in Visual Studio Code

From strategy to shipped code, keep every project moving forward.

Coming Soon to VS Code

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