{"history":[{"observed_at":"2026-10-19T22:42:44+00:00","day":"2026-10-19","price":15.0,"currency":"USD","price_usd":15.0,"price_eur":13.363029,"prices":{"per_1m_tokens_out":90.0},"fx_usd_per_eur":1.1225,"snapshot_id":41}],"sku_id":"inference/openrouter/openai/gpt-5.4-pro:batch/openai/unknown","license":"CC BY 4.0","window":{"plan":"anonymous","history_days":90,"truncated":false}}