The fastest serverless
inference API for
open-source models.
Built for agentic workloads. Our stack adapts end to end
to how your application runs, so you get top speed at the
limits you need. OpenAI-compatible, pay per token.
NVFP4
NVFP4
NVFP4
357407327287PrimaLabs384513651
Xiaomi16251625
DeepInfra#1 on Artificial Analysis.
Check it yourself.
Independently measured, dated, and linked. When rankings move, these charts move with them.
One API. Tuned to
your application.
Try the Serverless API 
Your workload
1
Many short steps over the same codebase.
Settings adapt
2
Self-driving optimization,
from national-lab research.
PrimaLabs learns how your traffic behaves, tests candidate changes, and ships only the ones that run faster with the same output quality.
Self-driving optimization
The platform tunes batching, scheduling, and cache to your live traffic on its own, with methods from national-lab HPC research.
Works with your coding agent
OpenAI-compatible API.
Production-ready
Zero data retention. No training on your data.Security
Limits you can see.
Throughput you can reserve.
Pay per token, and pick the lane that fits your traffic.
Serverless API
Pay per token on the latest open-source models. Need higher limits or reserved throughput? Talk to an engineer.
Try the Serverless API
DOE Genesis Mission partnerBuilt by researchers from the national labs.
The team behind the stack.
Former Director of AI Programs, Oak Ridge
National Laboratory. Learn more
- Led ORBIT: 113B-parameter foundation model, 1.6 exaFLOPS sustained on 49,152 GPUs
- ACM Gordon Bell Prize Finalist, 2024 (ORBIT) and 2025 (ORBIT-2)
- White House panels and the Tennessee AI Advisory Council
Four-time founder, zero-to-one across enterprise SaaS, AI, and healthtech. Learn more
- Built and scaled a venture studio incubating early-stage startups
- Entrepreneur Magazine, Top 25 People in Tech
- Operator background across GTM, fundraising, and product, from pre-seed to growth
Our team has built at
From the lab.
Benchmarks, partnerships, and inference engineering notes from the PrimaLabs team.
Nemotron 3.5 Lightning is live.
NVIDIA Nemotron 3.5 Lightning on PrimaLabs serverless. #1 for output speed on Artificial Analysis, as of 22 Oct 2026.
Speculative decoding under load.
Why acceptance length isn’t throughput. A production study of draft length, concurrency, and the cost of a decode step.
See the numbers
before you switch.
Point your OpenAI client at PrimaLabs and compare on your own traffic. Need reserved throughput? Talk to an engineer.
