Sora 2 Video Length: Max Duration by Plan (2026)

Sora 2 doesn't make long videos. The maximum you can generate in one shot is 25 seconds, and that's only if you're paying $200/month for ChatGPT Pro. Most users on the Plus plan are capped at 15 seconds per clip.

That's the headline. But there are some details that matter: how much each length costs against your daily quota, what resolution you actually get, and how to stitch shorter clips into something longer. Here's the breakdown.

Video Length Limits by Plan

The thing that catches people off guard is the daily quota cost. A 15-second video doesn't count as one video toward your daily limit. It counts as two. A 25-second video counts as four. So if your daily limit is, say, 50 videos, generating 25-second clips eats through it four times faster than making 5-second ones.

How Long Does It Take to Generate a Video?

Generation time depends on the length and resolution you pick:

These times vary a lot based on server load. During US business hours, expect the upper end. Late at night or on weekends, it's noticeably faster. Pro subscribers also get priority processing, which can cut wait times roughly in half.

How to Make Videos Longer Than 25 Seconds

If you need a video longer than 25 seconds, Sora can't do it in one generation. But there are workarounds that produce decent results:

Storyboard mode (Pro only)

Pro subscribers can use storyboard mode to plan a sequence of clips that share visual continuity. You define keyframes and transitions, and Sora generates each segment. The clips connect more smoothly than if you generated them independently because the storyboard gives the model context about what comes before and after.

Last-frame extension

Generate your first clip, extract the last frame as an image, then use that image as the starting point for the next clip. Add a prompt that continues the action. This works reasonably well for simple scenes but can produce visible seams at the transition points, especially with complex motion.

External stitching

Generate multiple clips and combine them in a video editor (CapCut, DaVinci Resolve, or even iMovie). Add crossfade transitions to smooth the cuts. This gives you the most control but requires more manual work.

None of these produce results as clean as a single long generation would. The transitions between clips are the weak point. For social media content (where people are used to jump cuts), it works fine. For professional work, the seams can be distracting.

How Does Sora Compare on Video Length?

For pure length, InVideo AI is in a different league at 15 minutes. But the quality is lower and it's a different kind of tool (more like automated editing than generation from scratch). Among true AI video generators, Sora and Runway are tied for the longest clips. If you need to compare multiple generators before choosing one, Merlio's text-to-video tools let you test several from one interface.

Sources

• TechRadar: Sora 2 longer videos update - latest updates on Sora video lengths
• eWeek: Sora 2 storyboarding and longer clips - storyboard feature details

Written by

Merlio