OpenRouter Upstage Solar Decide — 50% off input — Event History

First canonical observation: OpenRouter route upstage/solar-decide currently advertises 50% off: USD 0.05/M input, USD 0.05/M cached, zero output-token charge, 524,288 context. Separate route from Upstage Console direct USD 0.10/M input. Promo expiry unknown. NEW, not a price-drop event.