Prism
Prism assistants work alongside the people you trust — clearing repetitive work so quality goes up, creativity and collaboration flourish, and everything ships faster. You set the hours. You control the data.
Get Prism now →AI should do more than just promise.
With Userlite… AI empowers individuals and teams today. Not in six to twelve months. Not “just around the corner.” Today.
Frontier capability.
Actually delivered.
Tempo
Everyone knows agents are the future of work. Frontier labs are all-in on the category. Tempo is the one that actually keeps up — 20–50× faster iteration, live.
Meet Tempo →The API
Stream Lumen into your product with one endpoint, typed SDKs, and predictable pricing.
Read the docs →Conductor
Orchestrate multi-step agents with guardrails, evals, and full-trace observability by default.
Join the beta →Lumen Nano
A distilled model small enough to run at the edge, private by construction and fast on modest hardware.
See benchmarks →Research & Insights
2026 · 06
Legible Chains: supervising reasoning without collapsing it
A method for keeping intermediate reasoning faithful and human-auditable.
Interpretability
2026 · 05
Lumen 3: technical report
Architecture, training data, and evaluations for our flagship model.
Models
2026 · 03
Constitutional preference tuning at scale
Aligning model behavior to written principles with minimal human labels.
Alignment
2026 · 01
Calibrated refusals: knowing when not to answer
Teaching models to express uncertainty instead of confident error.
Safety
2025 · 11
Sparse retrieval memory for million-token context
An attention-efficient memory that scales recall without scaling cost.
Systems
Making AI safe for humans means much more than preventing the worst-case scenario.
AI is only beneficial as much as it truly lifts and elevates humanity.
Singularity or Doom Spiral?
We'll let the other labs sort that out. Our work is always grounded in the next meaningful, tangible step forward.
The Future of Software
We believe AI is the future of software, no matter what your definition of software is.
The Time is Now
The future of software is not going to arrive automatically. Someone needs to build it.
That's what we're doing at Userlite.
Connect with us.
Product and model access, research collaboration, or potential investors/partners: tell us what you're interested in and we'll follow up.