How long can a Sora 2 video be?
Before Sora was discontinued, the maximum depended on the product channel: up to 15 seconds in the app and on the web for all users, or up to 25 seconds on the web for Pro users, according to OpenAI’s October 16, 2025 update as reported at the time. Separately, OpenAI’s archived Sora 2 API guide listed a maximum of 20 seconds per API clip. These are historical specifications, not currently available Sora generation options. (digitaltrends.com)
OpenAI says the Sora web and app experiences ended on April 26, 2026, and its API guide is marked archived. The Sora 2 API was discontinued on September 24, 2026, according to OpenAI’s discontinuation notice. (openai.com)
What was the API maximum?
OpenAI’s archived Sora 2 guide lists 4, 8, 12, 16, and 20 seconds as supported API clip lengths, with 4 seconds as the default. It says the maximum duration had increased from 12 to 20 seconds. This describes the API while it was available; it is not a currently usable production limit. (developers.openai.com)
Did the Sora app have the same maximum?
No. OpenAI’s October 16, 2025 update was reported as allowing clips up to 15 seconds in the app and on the web for all users, and up to 25 seconds on the web for Pro users. The 25-second option was therefore a web-and-Pro condition, not the general app maximum. (digitaltrends.com)
Don’t confuse Sora 2 with the original Sora
OpenAI’s original Sora announcement said the first-generation model could generate videos up to one minute long. That figure is for the original Sora, not Sora 2, and does not replace Sora 2’s historical channel-specific limits. (openai.com)
Sources
Sora 2 Prompting Guide — OpenAI
What to know about the Sora discontinuation — OpenAI Help Center
Sora 2 just unlocked longer clips, but there’s a catch — Digital Trends
OpenAI Extends the Video Length to 25 Seconds on Sora 2 — IBL News