System status

All systems operational

The Keystone gateway, which an Alexandria brain’s own model calls pass through when it holds a Keystone key, and the model tiers the gateway routes to.

Inference gateway: Responding.
Authentication: Keys validating.
Claude Opus 4.8: Anthropic
Claude Sonnet 5: Anthropic
Claude Haiku 4.5: Anthropic

Last updated Mon, 19 Oct 2026 15:50:58 GMT

Not yet routed

Published so the roadmap is legible, not because the gateway serves them today. Until a tier appears in the table above, no request reaches it.

Claude Fable 5: Anthropic · not yet routed
GPT 5.6: OpenAI · not yet routed

Where prompts can go

Work from a brain reaches exactly one of two places: Anthropic or OpenAI. Nowhere further. In the app you already use, that is the provider behind it; through this gateway, it is the provider the request is relayed to, and to no one else. Anthropic is the only provider routed today. The full detail is in the Privacy notice.

Something wrong that isn’t reflected here? hello@keystone.computer