Access guidance · R3 · 20 Sep 2026 UTC

Do not configure a retired or unlisted Union Alpha identifier

This is route-status guidance, not a success recipe. R3 made no request and does not establish access, quota, price, privacy, capacity, or behavior for any route.

A. Former OpenRouter preview

Status

stealth/union-alpha is retired / no longer catalog-listed. The historical page says the free stealth period ended and names Pareto by Unbiased. No old-slug request was made, so this is not an API-error claim. R3-S01 · R3-S02

Do not start a fresh integration on the retired ID or present its historic $0, context, modality, or retention text as current availability.
Do not treat generic OpenRouter free-variant policy as a model quota. The rule is scoped to free variants; a catalog field such as per_request_limits: null is not “unlimited.” R3-S04

B. Current paid Pareto route

If a Pareto evaluation is separately authorized, review its current listing, access terms, pricing, and route-specific data terms before use.
Do not send sensitive code based on the former preview’s historical retention wording. R3 did not locate a current Pareto-specific assurance in its narrow audit.
Do not call paid Pareto an immutable Union Alpha replacement: component models, weights, routing, version and snapshot equivalence are unverified.

C. Former OpenCode Go alias

Status

Do not configure opencode-go/union-alpha. R3 found no Union Alpha entry in inspected current Go docs or the public Go model catalog. This omission does not reveal the response an old alias would return. R3-S06 · R3-S07

Do not rely on R2’s “Free (limited time),” “Unlimited,” “Not used,” or “0 days” language. Those are dated historical documentation, not present route policy or entitlement.
If OpenCode officially re-lists the alias with an explicit route mapping, only an already-authorized subscriber should make one tiny non-sensitive text request.
For that future single request, save UTC, model, settings, status, redacted headers/response and latency; stop on any error or limit. One result would be n=1, not a quota, capacity, SLA, or equivalence result.

R3 observation: zero Go requests were sent because both prerequisites failed—no current alias listing and no pre-existing authorized credential. No account, subscription, purchase, retry, or sensitive-code request was made.

Evidence and precise boundaries: current availability audit · preserved R2 report · current summary.