--- title: "Off-peak windows · Undominated.ai" canonical: https://undominated.ai/off-peak/ description: "2 models whose published price comes from an offer priced by time of day, as of 2026-10-06: the standard rate, each discount window in UTC, and the saving. Every other page shows the standard rate." --- # Off-peak windows · Undominated.ai > 2 models whose published price comes from an offer priced by time of day, as of 2026-10-06: the standard rate, each discount window in UTC, and the saving. Every other page shows the standard rate. # Off-peak windows Some models cost less at certain hours. Everywhere else on this site such a model is priced at its standard rate, the dearest window its vendor lists, so a table never depends on the hour it was read. Two were once priced at a discount window instead; §83 of the [correction log](https://undominated.ai/corrections/) tells how. This page shows each discount window, its rate, the saving and its hours in UTC. As of Oct 6, 2026, **2** models have a published price taken from an offer priced by time of day. Every price elsewhere on this site is the standard window; this page is where the discount is shown. Rates are USD per million tokens. A model’s windows are those of the seller whose offer sets its published price (the [reference price](https://undominated.ai/methodology/#reference-price)), read from that offer’s own endpoint row, never from the time this page was built. A window offered by another seller is not a price this site publishes, and is not shown as one. 3 more models have a seller with a discount window whose offer does not set the published price, so they are not listed below: [DeepSeek V4 Flash 0731](https://undominated.ai/models/deepseek__deepseek-v4-flash-0731/) (Alibaba); [DeepSeek V4 Pro 0813](https://undominated.ai/models/deepseek__deepseek-v4-pro-0813/) (Alibaba, DeepSeek); [DeepSeek V4.1 Flash](https://undominated.ai/models/deepseek__deepseek-v4.1-flash/) (Alibaba, DeepSeek). ## [Hy4 preview](https://undominated.ai/models/tencent__hy4-preview/) Standard rate: **$0.834** in · **$2.50** out. This is the price the rest of the site shows. Discount: **$0.751** in · **$2.25** out, 10% less. Hours, UTC: every day 16:00–24:00. Mon Tue Wed Thu Fri Sat Sun 00:00 06:00 12:00 18:00 24:00 Shaded: the discount hours. Each row is a day, Monday first; each cell is half an hour, UTC. ## [Hy3](https://undominated.ai/models/tencent__hy3/) Standard rate: **$0.132** in · **$0.528** out. This is the price the rest of the site shows. Discount: **$0.083** in · **$0.330** out, 38% less. Hours, UTC: every day 16:00–24:00. Mon Tue Wed Thu Fri Sat Sun 00:00 06:00 12:00 18:00 24:00 Shaded: the discount hours. Each row is a day, Monday first; each cell is half an hour, UTC.