Write like your
best people. Always.
Lumen learns your team's voice and helps everyone write with the same clarity, tone, and confidence.
Trusted by 1,200+ teams at Vercel, Notion, and Linear
Our main objective for this quarter is to accelerate user growth by 30%.
L23We will be launching our new developer platform, but the date has been pushed back due to issues.
To mitigate this delay, the product and dev teams are aligning on a streamlined release plan next Tuesday.
...date has been pushed back due to issues.
...but we delayed the launch because of infrastructure issues.
Teams at these companies write better with Lumen
Tone intelligence.
Lumen reads your existing docs and learns what good writing looks like for your team. Then it helps everyone match it.
We will be implementing a Redis-based cache structure.
It is crucial that we make an attempt to avoid locking indexes.
This keeps system database operations performant and stable under heavy loads.
💡 Weak Verb: Change "make an attempt to avoid" to a direct verb like "avoid" or "prevent".
Lumen's pricing is built to scale naturally alongside your workspace.
We are currently in the process of building a startup credit system.
...currently in the process of building
...building
Inline suggestions.
Get rewrite suggestions as you type — not after. Lumen sits inside your workflow, not outside it.
Living style guides.
Lumen builds a living style guide from your best docs. New hires write on-brand from day one.
Simple, transparent tiers.
Choose a plan that fits your team's workflow. Start writing clearer documentation today.
Core suggestions for individual writers and small teams.
- Up to 3 users
- Core suggestions
Advanced tone and vocabulary matching for growing organizations.
- Unlimited users
- Tone profiles
- Standard integrations
Maximum control, security, and dedicated support for large enterprises.
- SSO & Audit logs
- Dedicated support
- Custom SLAs
Word of mouth.
Lumen has completely changed how our product engineers write. Specs that used to take multiple review cycles are now approved on the first pass.
VP of Product, Vercel
We used to struggle with maintaining a consistent brand voice across marketing, support, and documentation. Lumen solved that in an afternoon.
Head of Brand, Linear
As a fast-growing team, onboarding new hires and teaching them our technical style guide was a bottleneck. Lumen makes them sound like veterans from day one.
Engineering Director, Raycast