Microsoft Copilot: Models, Capabilities & API for Developers

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Copilot

Microsoft

Start Building an AI app

Microsoft Copilot brings AI directly into the apps you already use, including Word, Excel, PowerPoint, Outlook, Teams, and VS Code. Instead of adding another tool to your workflow, Copilot helps you write, analyze, create, collaborate, and code right where you work.

Context window

1.1M tokens

Pricing

Per-token

License

Proprietary

Copilot models compared

Model

Arena ELO ±CI

Rank

Votes

Context

$ / 1M in

$ / 1M out

License

GPT-6 Astra Max

1477.7 ±7.5

7185

1.1M tokens

Proprietary

GPT-5.5

1476.7 ±3.7

70635

1.1M tokens

Proprietary

GPT-5.2 Chat Latest 20260210

1475.8 ±4

35962

128K tokens

1.75

Proprietary

Data source:

LM Arena

· Data as of

25 Sep 2026

Learn more about the methodology

What Copilot is best at

Native Microsoft 365 integration

Microsoft Copilot is built into Word, Excel, PowerPoint, Outlook, and Teams. Draft documents, generate formulas, build presentations from outlines, summarize email threads, recap meetings — all without opening a separate app.

Enterprise-grade security and compliance

Copilot AI inherits Microsoft's full security stack: Azure AD, Conditional Access, DLP, and compliance boundaries. Data stays in your Microsoft 365 tenant. Copilot respects existing permissions — users only see what they're authorized to see.

GitHub Copilot for code completion

Copilot for developers is the most adopted AI coding assistant, available in VS Code, Visual Studio, JetBrains, and Neovim. It suggests code as you type, understands your project context, and handles everything from autocomplete to multi-file edits and PR summaries.

How to use Copilot via Setapp AI Gateway

One API, all models

Step 1

Access ChatGPT, Claude, Gemini, DeepSeek, Grok, Llama, Mistral, Qwen, Copilot-class models, and Perplexity through a single endpoint. One key, one integration, every model.

Transparent, unified pricing

Step 2

No surprise bills, no per-model accounts. Setapp Al Gateway consolidates billing across providers with clear per-token pricing and usage dashboards.

Smart routing

Step 3

Automatically route requests to the best model for each task — or choose manually. Optimize for cost, speed, or capability without changing your code.

Zero vendor lock-in

Step 4

Switch between models with a parameter change. Your integration stays the same. When a new model launches, it's available in your existing setup - no migration needed.

Read the docs Supported models

What people build with Copilot

extract

Office productivity automation

Draft a Word doc from bullet points. Get Excel to write its own formulas. Build a PowerPoint from an outline. Summarize a 40-message Outlook thread. Copilot removes the formatting and drafting overhead that makes office work slow.

ship

Meeting intelligence and follow-up

Copilot joins Teams meetings, captures notes and action items, and drafts follow-up emails. If you missed a meeting, it gives you a summary with key decisions and who's responsible for what.

refine

Code development and review

GitHub Copilot suggests code as you type, writes tests, explains unfamiliar functions, and reviews PRs for bugs. For dev teams, it meaningfully reduces the time spent on boilerplate and routine code review.

trust

Enterprise knowledge management

Microsoft 365 Copilot can search across your organization's emails, documents, chats, and meeting recordings to answer questions. Instead of digging through SharePoint or old threads, you just ask.

Common questions

What is Microsoft Copilot?

An AI assistant built into Microsoft's product suite — Microsoft 365 (Word, Excel, PowerPoint, Outlook, Teams), Windows, Bing, and GitHub. It runs on OpenAI's GPT models combined with Microsoft Graph, so its answers are grounded in your organization's actual data.

How does Copilot AI differ from ChatGPT?

ChatGPT is a standalone AI platform. Copilot is AI embedded inside the tools you already use. The key difference: Copilot has access to your documents, emails, calendar, and organizational context. ChatGPT is more versatile as a general assistant; Copilot is more immediately useful if you live in Microsoft 365.

Copilot for developers — is GitHub Copilot worth it?

For most professional developers, yes. It noticeably reduces time on boilerplate, test writing, and documentation. Suggestions are context-aware to your project, and PR review catches real bugs. The ROI usually becomes clear within the first month of active use.

What data does Copilot access?

Microsoft 365 Copilot accesses data within your Microsoft 365 tenant — emails, docs, chats, meetings, calendars — but only what the authenticated user already has permission to view. It doesn't cross tenant boundaries or access personal accounts unless explicitly connected.

Can I access Copilot's underlying models via API?

Microsoft offers Azure OpenAI Service for API access to the GPT models behind Copilot, with enterprise security and compliance. Through Setapp AI Gateway, you can also reach these models alongside Claude, Gemini, and others without dealing with Azure-specific setup.

Browse the best Al models

Every large language model available through Setapp - in one chat, under one subscription. Click any model for benchmarks, pricing, sample prompts, and comparisons.

Access Copilot-class models via Setapp AI Gateway

Use the same GPT models powering Copilot — through one API, without Azure complexity.

Apply now

Al models for developers - one integration, every provider

Setapp Al Gateway gives your app access to all models listed above through a single OpenAl-compatible endpoint. No separate API keys,  no provider
contracts, no billing logic to build.

Apply now

Al models for developers - one integration,
every provider

Setapp Al Gateway gives your app access to all models listed above through a single OpenAl-compatible endpoint. No separate API keys,  no provider contracts, no billing logic to build.

Apply now

Copilot models compared

What Copilot is best at

How to use Copilot via Setapp AI Gateway

What people build with Copilot

Common questions

Browse the best Al models

Access Copilot-class models via Setapp AI Gateway

Al models for developers - one integration, every provider

Al models for developers - one integration,every provider

Al models for developers - one integration,
every provider