{"formula":"price_cny = upstream_cost_usd * fx_rate * group_multiplier * model_multiplier","fx_rate":"7.30","fx_base":"7.3","fx_buffer":"1.0","default_group_multiplier":"1.0","default_model_multiplier":"1.0","note":"upstream_cost_usd 由 LiteLLM 按上游官方 per-token 单价自动核算，可用响应头 x-litellm-response-cost 自行复算。"}