GitHub Copilot vs HagiCode: Features and Comparison

HagiCode is a proposal-driven AI coding workbench that turns a request into a reviewable proposal, runs it through agent CLIs such as Claude Code, Codex and GitHub Copilot, and keeps the outcome as team knowledge.

GitHub Copilot is a terminal AI agent that runs on your Copilot subscription; HagiCode is a desktop workbench that uses it as an executor. This page compares what each does, what they cost, and when Copilot alone is enough.

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English2026-10-16

Short answer

GitHub Copilot is GitHub's terminal AI coding agent: you run copilot in a repo, and it reads, edits and runs commands using your Copilot subscription. HagiCode is a desktop and web workbench that launches Copilot (or one of 15 other Agent CLIs) as the executor behind its sessions, proposals and commits. It does not replace Copilot and it does not sell models.

If you want one agent in one terminal, close to GitHub issues and pull requests, stay with Copilot alone. HagiCode earns its place when you run several tasks at once, want spec-driven proposals, or prefer a visual workspace on top of the same Copilot login.

GitHub Copilot vs HagiCode at a glance

DimensionGitHub CopilotHagiCode
What it is

Terminal AI coding agent from GitHub, part of the Copilot product line

Desktop and web AI programming workbench that drives Agent CLIs you install

Interface and platforms

Terminal UI started with copilot; Linux, macOS, Windows (PowerShell or WSL)

Desktop app for Windows, macOS, Linux; Docker Compose container; Microsoft Store edition

Pricing and licensing

Needs a Copilot plan: Free tier, or paid Pro (from $10/month as of October 2026), Pro+, Max, Business, Enterprise

Desktop and Container free; Store edition free with optional one-time TurboEngine purchase

Model and provider access

Pick models with /model, including Claude and GPT families; bring-your-own provider via environment variables

Hosts no models; uses whatever Copilot is signed in with, so model cost stays on your Copilot plan

Parallel work

One conversation per terminal; delegates to built-in and custom sub-agents

Several concurrent sessions across repos, managed from an Agents view

Spec and planning workflow

Plan mode, toggled with Shift+Tab inside a session

OpenSpec proposals: propose, validate, apply, archive; 3 concurrent on free editions, 32 with TurboEngine

Git and commit handling

Runs Git commands and talks to GitHub.com from the session

AI-composed commits, Git management, GitHub integration, embedded Code Server editor

Setup effort

One install command, then /login or a token; no extra app

Install HagiCode Desktop, and have Copilot installed and signed in first

Best for

Terminal-first developers working in GitHub issues and pull requests

Developers juggling several tasks or repos who want a GUI and a spec discipline

What GitHub Copilot does well

GitHub-native by design

Copilot is built by the company that hosts your repository, so asking it about issues, pull requests and GitHub.com is a first-class use rather than a plugin. It signs in with /login, or with a fine-grained personal access token that has the "Copilot Requests" permission, passed as GH_TOKEN or GITHUB_TOKEN, which is convenient for scripts.

Model choice, including your own provider

Switch models mid-session with /model or start with --model. GitHub lists Claude and GPT families, and some newer models offer a 1 million token context window with configurable reasoning levels, which use more credits. You can also point the CLI at an OpenAI-compatible endpoint, Azure OpenAI, Anthropic or a local model such as Ollama through environment variables.

Interactive and scripted use from one tool

Run copilot for an interactive session, or copilot -p "<prompt>" for a single scripted run, with explicit approval flags for file changes and commands. That makes it usable in shell scripts and CI, which a GUI workbench is not suited for.

Extensible and governed

MCP servers add data sources and tools, custom agents specialise Copilot for a task, and built-in specialised agents take common jobs. Content exclusion applies to Business and Enterprise users, so organisations can set policy centrally. Experimental features such as Autopilot sit behind --experimental.

When to choose GitHub Copilot, and when to choose HagiCode

Stay with GitHub Copilot when

  • You already pay for Copilot and mostly work in a single terminal on one task at a time.
  • Your work revolves around GitHub issues and pull requests, and you want the agent close to them.
  • You need headless or scripted runs, for example copilot -p in CI.
  • You want the smallest possible toolchain: one install, one login, no extra app.
  • Your organisation manages Copilot policy and expects people to use the CLI directly.

Reach for HagiCode when

  • You run several tasks or repositories at once and want sessions side by side instead of terminal tabs.
  • You want a written proposal, validation and archive step before the agent changes code.
  • You like reviewing tool calls and diffs in a GUI, and having an AI-composed commit step.
  • You want a shared knowledge base (Vault) and multi-repo workspaces (Monospecs) around your agent.
  • You switch between Agent CLIs (Copilot, Claude Code, Codex and others) and want one workspace for all of them.

Using GitHub Copilot together with HagiCode

HagiCode sits on top of the CLI you already have. It starts copilot for you through the GitHub Copilot SDK, so your install, GitHub login and Copilot plan are unchanged, and usage still counts against that plan.

Nothing is locked in: your repositories stay ordinary Git repositories and you can run copilot in a terminal at any time.

  • 1. Install Copilot (npm install -g @github/copilot, brew install copilot-cli, or winget install GitHub.Copilot) and sign in with /login.
  • 2. Install HagiCode Desktop (free) for Windows, macOS or Linux.
  • 3. In HagiCode, choose GitHub Copilot as the Agent CLI for a session.
  • 4. Open a repository and start a session or an OpenSpec proposal.
  • 5. Expect the usual Copilot model choices and billing; HagiCode adds the surrounding workflow, not new models.
  • 6. To go back to plain Copilot, just open a terminal in the same repository.

What HagiCode adds on top of any agent

Parallel sessions and Agents management

Copilot is one conversation per terminal. In HagiCode you can keep several Copilot sessions running across repositories and follow them from an Agents view, instead of juggling tabs.

OpenSpec proposals

Before Copilot edits anything, you can run a propose, validate, apply and archive loop. The proposal becomes a reviewable record of why a change was made, which plain chat history is not.

AI commits and Code Server

After a Copilot session HagiCode can compose the commit message from the diff, and the embedded Code Server lets you inspect or fix the result without leaving the workbench.

Monospecs and Vault

Monospecs groups several repositories into one workspace so Copilot sessions can span them; Vault keeps notes and decisions that outlive a single session.

One tool-call view and optional TokenMonitor

Tool calls from Copilot and other agents are shown in the same layout, and an optional TokenMonitor can show usage in the status bar. HagiCode does not change how Copilot is billed.

The bottom line

  • Copilot is a capable, GitHub-aware terminal agent; if one terminal and one task at a time is your workflow, you do not need anything else.
  • HagiCode is a different layer: a workbench for parallel sessions, proposals and commits that runs Copilot underneath.
  • Using both costs nothing extra beyond your Copilot plan, since HagiCode's free editions run your existing install.
  • Skip HagiCode if you need headless automation or dislike spec discipline.

Frequently asked questions

Is GitHub Copilot free?

There is a free Copilot tier with limited usage, and paid plans from Pro upward; Pro starts at $10/month as of October 2026. Plan names, prices and usage allowances change, so check GitHub's Copilot plans page.

How do I install GitHub Copilot?

Run `npm install -g @github/copilot`, `brew install copilot-cli`, `winget install GitHub.Copilot`, or `curl -fsSL https://gh.io/copilot-install | bash`. Then start `copilot` and sign in with `/login`.

Can I use GitHub Copilot with HagiCode?

Yes. Install and sign in to Copilot first, then pick GitHub Copilot as the Agent CLI in HagiCode. Billing stays with your Copilot plan.

Does HagiCode replace GitHub Copilot?

No. HagiCode runs Copilot as its executor and adds sessions, proposals, commits and a GUI around it.

GitHub Copilot vs HagiCode: which should I pick?

Use Copilot alone for single-terminal work and scripts. Add HagiCode when you run parallel tasks, want OpenSpec proposals, or prefer a visual workspace.

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