Attribution scope · R3 reconfirmation
The former preview has attribution; route equivalence does not
OpenRouter explicitly says Union Alpha was revealed as Pareto by Unbiased. Unbiased says Pareto is a blended model built and maintained by Circuit & Chisel. R3 reconfirms that attribution only for the former preview; it does not map the former OpenCode Go alias to Pareto or to any fixed version.
Confirmed
Scope boundary
| Question | R3 answer | Evidence boundary |
|---|---|---|
| Was the former OpenRouter preview disclosed as Pareto? | Yes, on the historical OpenRouter page. | Primary attribution for that former preview; not an old-ID request. |
| Was the former Go alias Pareto or a fixed Pareto version? | Unknown. | No inspected source states a mapping; alias is now absent from current Go sources. |
| What models or weights compose Pareto? | Undisclosed. | “Blended” does not identify components or proportions. |
Historical R1 theories
Retired as identity answers: prompt self-ID, tokenizer counts, output style, safety behavior, account geography and timing are weaker than explicit primary attribution. They remain archived launch discourse, not a current inference about Pareto composition.
| Lead | R1 record | Current treatment |
|---|---|---|
| GLM / Z.ai family | Image-prompt self-ID and tokenizer discussion without reproducible traces. | Historical, unconfirmed fingerprint lead. S16 |
| Kimi, Mistral, OpenAI, Qwen | Name/timing/context/style/safety speculation in threads. | Archived discussion, not attribution evidence. S10 |
Read the precise R3 scope in the current availability audit; earlier evidence remains in R2 and R1.