Celestia said Voyager benchmarked at 21 million transactions per second in a five-hour test for agentic commerce, with key limits still untested.

Celestia introduced Voyager, a blockchain architecture it says is designed for hyperscale payments in an agentic internet, and said the system sustained 21 million transactions per second in a benchmark meant to test onchain payments between machines. The announcement, published on October 29, 2026, matters because the company is positioning Voyager as a payments layer for AI agents that need fast, low-cost settlement for content, data and services on demand.

In the company’s post, Celestia said its first full benchmark showed Voyager processing a sustained 21 million transactions per second across 100 million accounts over five hours. The same post said throughput averaged 21.2 million transactions per second over the run and peaked at 21.6 million, with about 400 billion transfers included in one hour of the benchmark. Celestia said the system kept memory usage at about 48 GB, ran execution on a single CPU core at 96% to 100% utilisation, and moved about 4.8 GB/s through both the journal and the Fibre publisher.

The architecture described by Celestia splits payment processing into separate threads so balance updates are not blocked by other work. Transactions pass through an ingress layer that checks signatures and batches payments before they reach the core node, while a ring-buffer design distributes work across the journal, executor and storage components. Celestia said Voyager is built specifically for payments rather than a general-purpose virtual machine, uses a flat table for state rather than a Merkle tree, and publishes every transaction to Celestia Fibre so others can replay and verify the payments.

Source link