Former Union Alpha routes are not current Pareto routes
Then: OpenRouter offered a free stealth/union-alpha preview; OpenCode Go also named Union Alpha. Now: the OpenRouter preview has ended, and the former Go alias is absent from inspected current Go sources. Not equivalent: older paid Pareto and the separate, mutable 26.10 Preview are distinct listings. Neither former alias is pinned to either paid route or a fixed model version.
This is a dated source-review decision, not a live access test. The latest saved primary-source cutoff is ; no October 14 source finding is claimed. No old-ID or inference request was made in R5 or the October audits.
Which identifier should you use?
| Route | Saved evidence | Decision and boundary |
|---|---|---|
stealth/union-alphaFormer OpenRouter preview | The historical page attributes it to Pareto by Unbiased and says the free period ended. Its exact ID was absent from the inspected catalog. | Do not configure for a new integration. No old-ID endpoint response, quota, data term, or fixed-version mapping was tested. |
union-alphaopencode-go/union-alphaFormer OpenCode Go alias | No alias match in inspected current Go docs, public catalog or changelog. | Do not configure as a documented current route. Source absence is not an endpoint result or a Pareto mapping. |
unbiased/paretoOlder paid OpenRouter route | Separately listed at $2.50/M input, $7.50/M output and $0.25/M cache read; 262,144 context. These are listed terms, not an observed charge. | Evaluate only in a separate authorized study. No transaction, numeric route quota or equivalence to a former alias was established. |
unbiased/pareto-26.10-previewSeparate mutable OpenRouter preview | Listed as an Oct 1 next-version preview: $0.80/M input, $3.20/M output, $0.03/M cache read and 1,048,576 context. | Consider only as its own named route. Its metadata and preliminary scores do not describe September Union Alpha or replace older paid Pareto. |
Listings are as observed by the October 12 source review. No route-specific numeric quota was found for these routes; per_request_limits: null does not mean unlimited. Published listing prices are not tested charges.
Evidence boundaries
- The provider’s Pareto 26.9 and 26.10 benchmark figures are not Union Alpha results. Read their dated scopes.
- The public eval repository root did not show
results/on Oct 12, but direct complete tree, tags and releases inventory was uninspectable. That does not prove global artifact absence. Read the scoped record.
Route-limit reader
Research record
R1–R5 establish the launch and wind-down record. The October audits preserve later source observations; they did not reopen monitoring or test an endpoint.
Explore availability, benchmarks, attribution, historical user reports, and access guidance. Dated records: Oct 12, Oct 10, Oct 9, R5, R4, R2, R1.