Hosted model APIs
Access hosted models through the IonRouter API.
The full AI stack. Built to outperform.
Optimized orchestration, inference, fine-tuning, evaluation, and more.
Paladin predicts resource needs, packs jobs into spare GPU capacity, and moves running work as demand changes.
Run models through an API or on dedicated GPUs.
Fine-tune models for specific agent actions. Control where data runs and measure quality and cost.
Access hosted models through the IonRouter API.
Run models and agents on Cumulus GPUs or your hardware.
Founded by alumni from






Ion accepts text, images and audio. Pictures of mountains, a city, and a forest cycle through the request “Describe this image.” The GPU runs model-specific inference kernels while the GPU and Grace CPU exchange data over NVLink-C2C. Ion quickly returns a description of each picture.
“Move my visit to next Friday’s first afternoon opening.”