Hard to say, but the fact is the intelligence was there and now it's not. Maybe they are giving Sonnet, or maybe a distilled Opus, or maybe Opus but with lower

Hard to say, but the fact is the intelligence was there and now it's not. Maybe they are giving Sonnet, or maybe a distilled Opus, or maybe Opus but with lower context, not quite sure but intelligence costs compute so less intelligence means cheaper compute.