SeedVideo AI

Sora 2 online:the last window before the API sunset

OpenAI closed the Sora app in April 2026 and retires the API on September 24, 2026. Until that date, both Sora models generate here as usual — and the Seedance family is ready to take over the same workflows. Start in the composer below.

Specifications

What Sora 2 does here

The limits below are the ones this generator actually applies. Sora is the strictest model in the menu on reference inputs, so read the image row before you plan a workflow around it.

API availabilityOpenAI has scheduled the Sora API sunset for September 24, 2026. Generation here works normally until that date; afterwards the Sora models leave the menu and the Seedance models carry these workflows.
Models in the menuSora 2 as the standard option and Sora 2 Pro for higher-fidelity output with a resolution choice. Both sit under the OpenAI filter in the model menu.
Clip length4, 8 or 12 seconds per generation.
Output resolutionSora 2 returns the upstream default; Sora 2 Pro adds a 720p or 1080p choice. Your plan caps the ceiling: 1080p from Lite upward.
Aspect ratios16:9 landscape and 9:16 vertical.
Image inputOne reference image, up to 10 MB, used as the opening frame. Sora does not take an end frame or a multi-image reference set here.
AudioDialogue and sound effects are generated with the picture and timed to it, so there is no separate audio switch in the panel.
Prompt lengthUp to 5,000 characters — the longest prompt budget of any video model in this generator.
Plan requirementSora 2 and Sora 2 Pro both need a paid plan. The free plan covers the entry Seedance models instead.

Official Sora sources

The background clip on this page was generated on SeedVideo AI with Seedance, not with Sora 2.

Last updated:

Straight answers

Before you spend a credit

The questions people ask first when they land on a Sora 2 page that is not run by OpenAI — starting with whether it still works.

01

Is Sora 2 shut down?

The consumer Sora app closed on April 26, 2026, but the API behind this page runs until September 24, 2026 — so Sora 2 still generates here today. For anything ongoing, build on a model that stays, such as Seedance 2.5.

02

Is Sora 2 free here?

No. Sora 2 and Sora 2 Pro are paid-plan models and each generation is metered in credits. If you want to test the platform without paying first, the free plan includes Seedance 2.0 Mini.

03

Sora 2 or Sora 2 Pro?

Start on Sora 2: it costs the least per second of any model in this generator. Move to Pro when a shot is going into a finished edit and you want the resolution choice and the higher fidelity.

04

Can I use my own images?

One image, as the opening frame. If your project needs a locked product, character or style across several shots, Sora is the wrong tool in this generator — the Seedance reference workflow is.

05

What does one clip cost?

Credits are charged per second, so a 12-second clip costs three times a 4-second one at the same settings. The composer shows the exact quote before you submit, and nothing is deducted for a failed task.

Workflow

From prompt to Sora clip

Sora rewards long, specific prompts more than attachments — the steps reflect that.

  1. 01

    Select Sora 2

    Open the composer on this page, or the full generator, and pick Sora 2 or Sora 2 Pro from the model menu under the OpenAI filter.

  2. 02

    Write the scene in full

    Sora accepts up to 5,000 characters. Spend them: subject, setting, physical action, camera position, and the exact lines or sounds you want to hear.

  3. 03

    Attach one frame if you have it

    A single image sets the opening frame. Skip it when the prompt already describes the world you want — Sora is strong from text alone.

  4. 04

    Set length, then submit

    Choose 4, 8 or 12 seconds, check the credit quote, and submit. Finished clips land in your asset library with the audio embedded.

Comparison

Sora 2 vs Seedance 2.5

Both models run in this workspace, so the choice is per shot. Sora leads on physical plausibility and dialogue; Seedance leads on length and references.

FeatureSora 2Seedance 2.5
AvailabilityAPI retires on September 24, 2026Actively developed — 2.5 shipped in July 2026
Clip length4, 8 or 12 secondsUp to 30 seconds in a single generation
Prompt budget5,000 characters10,000 characters
ReferencesOne opening image, 10 MBUp to 30 reference images and 10 reference videos
Frame controlOpening frame onlyFirst and last frame, plus reference sets
AudioAlways generated, dialogue includedOptional — audio generation is a switch
Editing the resultRegenerate with a new promptLocalized edit and extend on an existing video
Cost per secondLowest in this generator on standard Sora 2Higher, and scales with resolution

Vendor reference: OpenAI Sora 2 announcement

Where it fits

Shots Sora 2 handles well

Physical action, spoken lines and grounded camera work — anything where the audio has to match what the frame is doing.

01

Physical action beats

A ball bouncing, a body falling, liquid pouring — shots where the give-away of a weak model is physics that does not hold up.

02

Spoken lines in scene

A single character delivering one line, with the audio generated to match mouth and room rather than dubbed afterwards.

03

Long-prompt scene writing

Scenes described in a full paragraph of blocking, lens and sound notes, where the prompt is doing the directing.

04

Cheap first passes

Standard Sora 2 has the lowest per-second cost in this generator, which makes it a sensible place to explore before committing to a pricier model.

Also on this platform

If Sora 2 is not the right fit

Same account, same credits, same asset library. These three Seedance pages cover the cases Sora 2 cannot take — and they are where Sora workflows land after the September 2026 sunset.

01

Testing on the free plan

Sora needs a paid plan. Seedance 2.0 Mini is the entry model included on the free plan, at 480p and 720p, for cheap iteration before you commit.

Try Seedance 2.0 Mini free online

02

Shots longer than 12 seconds

Sora caps a generation at 12 seconds. Seedance 2.5 runs to 30 seconds with multi-shot structure and localized editing on the finished video.

See Seedance 2.5 for 30-second video

03

More than one reference image

Sora takes a single opening frame. When a product, character or style has to stay identical across takes, the Seedance 2.0 reference workflow is the one that holds it.

Compare the Seedance 2.0 video generator

FAQ

Sora 2 questions

Model scope, plan requirements, reference limits and how this platform relates to OpenAI.

Sora 2 is OpenAI’s video and audio generation model, positioned as more physically accurate and controllable than the original Sora, with synchronized dialogue and sound effects generated alongside the picture.

Sora 2 and Sora 2 Pro. Both accept a text prompt or one opening image, at 4, 8 or 12 seconds, in 16:9 or 9:16. Sora 2 Pro adds a 720p or 1080p resolution choice.

Not in this generator. Sora takes one image as the opening frame. Multi-reference workflows — several images, reference videos, first and last frame — run on the Seedance models instead.

Yes. Audio is part of what the model generates, including spoken dialogue timed to the action, so there is no separate audio toggle for Sora in the panel.

Switch models rather than stitching. Seedance 2.5 generates up to 30 seconds in one pass with multi-shot structure, and it can edit or extend a finished video.

OpenAI retires the Sora API on that date, and the two Sora models will be removed from this generator. Clips you have already generated stay in your asset library. The closest replacements here are Seedance 2.5 for sound-on generation and Seedance 2.0 for reference-driven work.

No. SeedVideo AI is an independent platform that runs Sora 2 through an upstream API, and it is not operated by, endorsed by or affiliated with OpenAI. The official Sora links on this page point to OpenAI’s own pages.

Sora 2 on SeedVideo AI

Generate your first Sora shot

Prompt, duration, submit — while the window is open. Every generation lands in the same asset library as your Seedance work, and stays there after the sunset.

Open the generator
Sora 2 Free: AI Video Generator | 1080P, No Watermark