Copilot writes code.
Hyrax architects the codebase.
GitHub Copilot is the default AI assistant for most teams, spanning completions, chat, review and an agent that opens pull requests. Hyrax works at a level Copilot does not: the state of the whole repository, and resolves verified against the project test suite.
- Hyrax audits roughly 400 of its own repositories.
- Free plan: full access, up to 100 PR reviews a month, a $30 starter credit, and $10/month ongoing.
Verified end to end, with no GitHub Copilot handoff
What changes when Hyrax runs above the tools.
Judgment above the agents
GitHub Copilot executes the task it is given. Hyrax decides what is worth doing and whether the result fits the system it lands in.
Verified before review
Every change runs the project baseline tests, build and lint, and passes a second reviewer agent, before the pull request exists.
Context that compounds
The map of the codebase lives in the repository and strengthens with every merge, so the next decision starts from everything learned before it.
How Hyrax and GitHub Copilot make decisions.
| Decision criteria | GitHub Copilot | Hyrax |
|---|---|---|
| Unit of work | The file being edited, and the pull request under review. | The whole repository, audited continuously across six domains. |
| Codebase context | Editor context plus repository indexing on GitHub. | A durable map committed to the repository as HYRAX.md and .hyrax/discovery, so it strengthens as the codebase changes. |
| Output type | Completions, chat answers, review comments and agent pull requests. | Verified pull requests, plus issues ranked by severity and effort. |
| Verification | The coding agent runs in Actions, and repository CI gates the result. | Baseline tests, build, lint and a second reviewer agent run against the project itself before a pull request opens. |
| Human control | The developer accepts completions and merges pull requests. | A human approves and merges every pull request. Hyrax never merges on its own. |
| Delivery surface | The IDE, GitHub.com and pull requests. | GitHub pull requests, with issues and posture in the Hyrax console. |
| Pricing model | Free plan, then $10 to $39 per user per month. | Free plan with a $30 starter credit and $10/month ongoing. Paid is $30 per user per month and each paid user gets $30/month of credits. |
Read how GitHub Copilot describes itself: github.com/features/copilot(opens in a new tab)
Comments on a diff, or a verified pull request.
- 01A developer assigns GitHub Copilot a task.
- 02GitHub Copilot writes code for that task and stops when the task is done.
- 03The team decides whether the change fits the wider system, then merges.
- 01Maps the codebase and keeps the map in the repository
- 02Applies architectural judgment across six domains
- 03Opens a verified pull request that a human merges
GitHub-native. Human-controlled. Verified before merge. No training on customer code.
From install to the first verified pull request.
Install the GitHub App
Grant read access to the repositories in scope. No card is required to start.
Hyrax maps the repository
Discovery writes HYRAX.md and .hyrax/discovery into the repository, so humans and AI tools read the same context.
Review the first pull request
Approved upgrades arrive as verified pull requests. A human merges every one.
Both tools solve real problems.
Choose GitHub Copilot if
The team wants one assistant inside GitHub for writing, reviewing and small delegated tasks, with no extra vendor. Copilot is a sound default.
Choose Hyrax if
The gap is architectural rather than assistive. Hyrax maps the codebase, audits six domains, and returns verified pull requests instead of suggestions to evaluate.
Free plan, then per seat across Copilot plans.
Free plan with a $30 starter credit and $10/month ongoing. Paid is $30 per user per month, and each paid user gets $30/month of credits.
Questions about GitHub Copilot and Hyrax.
Does Hyrax work alongside GitHub Copilot?
Yes, and most teams run both. GitHub Copilot keeps doing its job. Hyrax works at the level of the whole codebase, decides what is worth changing, and delivers verified pull requests. Nothing about the GitHub Copilot setup has to change.
What does Hyrax change in the repository?
Discovery writes HYRAX.md and a .hyrax/discovery directory, which document the architecture, conventions and risk areas of the codebase. Everything else arrives as a normal pull request on its own branch. Hyrax has no write access to the default branch.
How does pricing work?
The free plan includes full access, a $30 starter credit and $10/month of credits ongoing, with no card required. The paid plan is $30 per user per month, and each paid user gets $30/month of credits. Pull request reviews are included on every plan.
What happens after signup?
Installing the GitHub App and granting access to a repository takes a few minutes. Hyrax maps the codebase, then runs the first audit and returns issues ranked by severity and effort. The first verified pull requests follow once an audit is approved.