Katechon ArcWhat OpenAI says
The Sora 2 models and Videos API were shut down on September 24, 2026 and are no longer available; there is no one-to-one replacement API. Source: OpenAI API docs, Sora 2 model page (developers.openai.com/api/docs/models/sora-2), checked 2026-10-18
The model page's price table listed Sora 2 at $0.10 per second (720×1280 or 1280×720) and Sora 2 Pro at $0.30 (720p), $0.50 (1024×1792) and $0.70 (1080p) per second, with synced audio. Source: OpenAI API docs, Sora 2 model page (developers.openai.com/api/docs/models/sora-2), checked 2026-10-18
Alternatives at similar prices
| Model | USD per second (audio on) | Audio | Clip length quoted |
|---|---|---|---|
| Veo 3.1 Fast 720p | $0.096 | Cheaper without | 8 s |
| Wan 3.0 720p | $0.100 | Same price | 10 s |
| Kling 3.0 Pro | $0.168 | Cheaper without | 10 s |
| Seedance 2.0 Mini 720p | $0.121 | Same price | 10 s |
| Seedance 2.0 Fast 720p | $0.194 | Same price | 10 s |
| Seedance 2.0 720p | $0.243 | Same price | 10 s |
Model prices on this page are Atlas Cloud list prices quoted 2026-10-17 with its free /calculate endpoint, as published in our AI video price index. Source: Atlas Cloud model catalog and /calculate list prices (atlascloud.ai/models), checked 2026-10-17
How to choose a replacement
- For short ads with native sound, Veo 3.1 Fast is the closest in price and clip length.
- For multi-shot scenes with dialogue, Kling 3.0 and Seedance 2.0 both generate audio with the video.
- For long series on a budget, Seedance 2.0 Mini rendered most of our released episodes.
- If your pipeline called the Sora API, plan for a different request format: none of these is a drop-in replacement.
Where Katechon Arc fits
If you used Sora for story work, Arc renders on Seedance 2.0 models and keeps characters consistent across episodes with reference sheets.
Arc is not an API replacement for Sora's Videos API; it is a production studio with its own MCP server.
People also ask
How much did Sora 2 cost?
OpenAI's model page listed Sora 2 at $0.10 per second at 720p and Sora 2 Pro at $0.30 to $0.70 per second depending on resolution, before the September 24, 2026 shutdown.
Is Sora 2 free?
Sora 2 is no longer available through OpenAI's API as of September 24, 2026, free or paid.
Related answers
Sources
- OpenAI API docs, Sora 2 model page: developers.openai.com/api/docs/models/sora-2, checked 2026-10-18
- Atlas Cloud model catalog and /calculate list prices: www.atlascloud.ai/models, checked 2026-10-17