Sora

Sora made headlines as the most impressive AI video generation model when OpenAI first previewed it in early 2024, and the public release in December 2024 largely lived up to the hype. Its understanding of physics, object permanence, and natural motion set a new standard for AI-generated video. Where competing models produce visibly artificial movement, Sora generates footage where water flows realistically, shadows move correctly, and people walk with natural gait. For brief clips — marketing b-roll, social media content, concept visualization — the results can be genuinely indistinguishable from real footage.

The platform's trajectory has been turbulent. OpenAI discontinued the consumer Sora app in April 2026, making the model available only through their API. More significantly, the API itself is scheduled to sunset in September 2026, likely to be replaced by a next-generation model. This means Sora in its current form is a transitional product — excellent technology with a limited lifespan. For developers building applications, the API pricing is structured per second of generated video, with standard 720p at $0.10 per second and Pro quality up to 1080p ranging from $0.30 to $0.70 per second.

Despite its uncertain future, Sora remains the benchmark for AI video quality. The Batch API offers a 50% discount for non-urgent processing, making it cost-effective for bulk generation. The main limitations beyond its sunset date are strict content policies that prevent certain creative use cases, relatively slow generation times, and the high cost barrier — there is no free tier. For teams evaluating AI video generation, Sora represents what the technology can achieve at its best while Runway offers a more stable, feature-rich platform for production workflows.