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What is MAI-Code-1.1-Flash?

MAI-Code-1.1-Flash is a streamlined and powerful coding model designed to boost both the speed and quality of code development specifically for engineering teams. Currently utilized in GitHub Copilot and seamlessly integrated into VS Code, it aligns with the everyday workflows of developers by particularly enhancing command-line functions and .NET operations based on user interactions. In comparison to the version revealed at Microsoft Build in June, this model demonstrates notable advancements in code quality, achieved through lower token consumption and faster streaming responses. Microsoft reports a 22% improvement on Terminal-Bench 2.1 for GitHub Copilot CLI, as well as a 15% enhancement in .NET task performance. Furthermore, production metrics reveal a 4% increase in code survival rates and a 9% rise in user retention on the platform. Impressively, within GitHub Copilot, tokens are streamed 25% more quickly, and the model utilizes 25% fewer tokens to complete tasks, which results in faster responses, shortened wait times, and heightened productivity from each token processed. These improvements arise from refined training approaches and enhanced operational efficiencies, with particular emphasis on practical application in real-world contexts. Ultimately, MAI-Code-1.1-Flash signifies a remarkable advancement in coding assistance technology, paving the way for more efficient development practices. With its emphasis on user experience and real-time feedback, this model is set to redefine how developers interact with coding tools.

What is Claude Opus 5.5?

Claude Opus 5.5 is Anthropic’s high-capability AI model for advanced coding, research, business work, computer use, and extended agentic tasks. It is designed to operate effectively on large and complex workloads that require planning, sustained context, tool use, verification, and multiple execution steps. In software engineering, Opus 5.5 can be used for codebase-wide migrations, debugging, audits, optimization, code review, and other long-running development projects. The model also supports knowledge-intensive work such as financial analysis, legal research, spreadsheet creation, executive presentations, data collection, and professional reporting. Anthropic reports that Opus 5.5 improves both task efficiency and serving efficiency compared with Opus 5, including lower token usage, faster output, and reduced cost on typical workloads. Its writing and communication behavior has been updated to prioritize important information, reduce unclear phrasing, and better follow requested style constraints. Opus 5.5 also includes stronger safeguards for autonomous and tool-using scenarios, including action screening, improved prompt-injection resistance, sandbox support, and vulnerability detection during code review. Anthropic applies additional safeguards to cybersecurity, biology, and model-distillation use cases, with expanded access programs available to verified organizations in certain sensitive fields. The model supports zero data retention and includes watermarking measures intended to support compliance requirements such as the EU AI Act. Developers can access Opus 5.5 through the Claude Platform using the claude-opus-5-5 model, while Claude Code and other Anthropic products can use it for interactive and agentic work. Claude Opus 5.5 is also available through Amazon Web Services, Google Cloud, and Microsoft Azure for organizations that prefer to deploy through major cloud platforms.

Media

Media

Integrations Supported

.NET
GitHub Copilot
Microsoft Foundry
Visual Studio Code

Integrations Supported

.NET
GitHub Copilot
Microsoft Foundry
Visual Studio Code
Biela.dev
C
CSS
Claude Cowork
Devin Desktop
GitAuto
Julia
LaunchLemonade
PrivatClaw
Rider
RubyMine
Simtheory
Solidity
Twigg
Verdent
Visual Basic

API Availability

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

$4 per 1M tokens (input)
$4 per million input tokens and $20 per million output tokens.

Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.20 per million tokens which is 60% cheaper than Opus 5. Opus 5.5 also delivers output over 30% faster than its predecessor.

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Microsoft AI

Date Founded

2024

Company Location

United States

Company Website

microsoft.ai/news/mai-code-1-1-flash-br-better-faster-at-a-quarter-of-the-cost/

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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