The same proxy the public tier uses — with capacity set aside before you ask for it, traffic routed ahead of the queue, and a senior engineer who already knows your stack. Fable 5.1 and Sonnet 5 included from the day they shipped.
What Premium includes
Priority routing
Premium traffic is served from a dedicated key pool. When the public tier enters backoff, your requests do not.
Reserved capacity
A slice of upstream tokens held for you whether you spend it or not. Plan a roadmap against a number rather than a hope.
An engineer on call
A senior engineer wires the first integration with your team, then stays on the pager. Not a chatbot, not a queue.
The lineup
Claude Fable 5.1, Opus 5 and Sonnet 5 are the newest additions, all on a 1M-token window. Every model below answers on the same base URL with the same key — switch per request, no redeploy.
Claude Fable 5.1
claude-fable-5-1The most capable model in the lineup, for demanding reasoning and long-horizon agentic work. Its knowledge runs to June 2026 — the most recent of any model here.
Claude Fable 5
claude-fable-5The previous Fable generation. Frontier reasoning and long-horizon agentic work on a 1M window.
Claude Opus 5
claude-opus-5The Opus flagship. Thinks before answering by default, and its knowledge runs to May 2026.
Claude Sonnet 5
claude-sonnet-5Frontier intelligence at Sonnet speed. The new default for day-to-day building.
Friendly aliases such as Opus 4.8 are accepted and normalised server-side. Appending [1m] to a model name — for example claude-fable-5-1[1m] — tells Claude Code to size its own context budget at 1M, since its /context command can't read the window we report. It selects nothing here: the suffix is stripped before the request is forwarded, and the model's context window is the same either way.
In their words
“OpusLive Premium replaced three vendors and a contract negotiation. We were in production the same afternoon.”
“The dedicated capacity is the part that finally let us ship the agent. No more 429s during demo days.”
Concierge onboarding
Every Premium account is paired with a senior engineer who takes the first integration end to end — IDE configuration, CI keys, rate limits, the lot. Most accounts are in production within four hours of signing.
Kickoff
We scope your workloads, models and budgets together.
Provisioned
Dedicated key pool, IDE configuration and CI variables, handed over.
Smoke test
Real traffic through your own repository, with you watching.
In production
You ship. We hold the dashboards and the pager rotation.
Plans begin at $20 USDT. Or write to concierge first and we will size something to your team.