Callosum helps developers route AI workloads across multiple models and hardware providers to optimize compute efficiency.
$100MSeed
A $100M seed for an AI routing layer signals that model fragmentation is now a real operational problem—not theoretical. Callosum is likely building the plumbing to let teams avoid vendor lock-in and arbitrage cost/latency across Claude, GPT, open models, and custom hardware, which means they're betting on a future where no single provider dominates inference. If you're building any AI product with meaningful compute spend, this matters: the economics of your stack just became negotiable.