







Enhance your workflow with extensions
Tools from the community and partners to simplify tasks and automate processes
Models for your every use case
Try, test, and deploy from a wide range of model types, sizes, and specializations.OpenAI GPT-4.1
by Azure OpenAI Service
gpt-4.1 outperforms gpt-4o across the board, with major gains in coding, instruction following, and long-context understanding
ModelDeepSeek-V3-0324
by DeepSeek
DeepSeek-V3-0324 demonstrates notable improvements over its predecessor, DeepSeek-V3, in several key aspects, including enhanced reasoning, improved function calling, and superior code generation capabilities.
ModelLlama 4 Scout 17B 16E Instruct
by Meta
Llama 4 Scout 17B 16E Instruct is great at multi-document summarization, parsing extensive user activity for personalized tasks, and reasoning over vast codebases.
ModelDiscover apps with Copilot extensions
Your favorite tools now work with GitHub Copilot.Docker for GitHub Copilot
Learn about containerization, generate Docker assets and analyze project vulnerabilities in GitHub Copilot
CopilotStack Overflow
Get answers to your most complex coding questions right where you’re already working
CopilotMermaid Chart
Provides advanced and powerful diagramming and visualization to GitHub Copilot Chat
CopilotMicrosoft 365 Agents Toolkit
Chats with GitHub Copilot extension for Microsoft 365 Agents Toolkit to build applications and agents for Microsoft 365
CopilotView recommended or recent marketplace listings navigation
Continuously build, test, and deploy to any platform and cloud
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Zenhub
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CircleCI
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CodeFactor
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Qlty Cloud
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GitLive
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GuardRails
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gitpod.io
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Mergify
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Apply size labels to Pull Requests based on the total lines of code changed
Code review assignment and custom workflows for teams
DeepSource
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See your test and style results without leaving GitHub. Works with any CI service. Supports JUnit, Checkstyle, and more