Perseus Vault: encrypted, local-first agent memory off the GPU — 100% MI300X HBM free for tokens. v2.19, 32 releases, 55 tools, 5 PyPI adapters.
The only submission that rented MI300X, 2×H100, 2×A100 80GB, and 8×A100 40GB and published real numbers — MI300X is 11.7× cheaper per agent than 2×H100.