Always current
Indexes on every push, so answers describe the branch you are on rather than the one it was trained on.
Lumen 2 is available
The model that reads your whole codebase.
Lumen answers questions about the systems you actually run — not a snapshot of them. Point it at a repository and it keeps up as the code changes.
No card required · 14-day trial · SOC 2 Type II
Live preview
Why did checkout latency double after Tuesday's deploy?
The pricing service started resolving
tax rules per line item instead of per cart in
#4412. Two of three carts hit the slow
path.
p95 +118%
3 files
Open a PR that reverts just that change.
Northwire
Harbour
Greenhouse Labs
Quarry
Signal Systems
Why teams switch
Built for the code you already have.
Three things matter when a model works on a real system: that it sees the current state, that it explains itself, and that it cannot quietly do something irreversible.
Shows its work
Every claim links to the lines it came from. If it cannot cite a file, it says so instead of guessing.
Asks before it acts
Writes, merges and deploys are proposals until a human approves them. Read access is the default.
What teams build
One model, several jobs.
Incident triage
Platform teams
Correlates a regression with the change that caused it, and drafts
the revert.
Review assistant
Every repository
Reads the diff in the context of the whole system, not just the
files that changed.
Migration planning
Staff engineers
Finds every call site, groups them by risk, and sequences the work.
Onboarding
New joiners
Answers "why is this here" with the commit, the review and the
issue behind it.
Dependency audits
Security
Separates the advisories that reach your code from the ones that
do not.
Pricing
Per seat, not per question.
Usage limits make people ration the tool that is supposed to save them time.
Starter
For a single repository.
$0 forever
- One repository
- Community support
- Read-only access
Team
Most chosenFor a codebase several people touch.
$24 per seat / month
- Unlimited repositories
- Pull request proposals
- Shared context across the team
- SSO and audit log
Enterprise
For code that cannot leave your network.
Talk to us
- Self-hosted or VPC
- Custom retention
- Named support engineer
Questions
Before you ask.
Do you train on our code?
No. Repository contents are used to answer your team's questions and
nothing else. Enterprise plans can run entirely inside your own
network, where the question never leaves it either.
What happens when it is wrong?
Every answer cites the files it drew on, so a wrong answer is
checkable rather than merely confident. Anything that writes is a
proposal until a person approves it.
How large a codebase can it handle?
The largest repository we index in production is around eleven
million lines. Indexing is incremental, so size affects the first
run far more than the ones after it.
Point it at a repository.
The first answer usually arrives before the tour would have finished.