ByteDance unveils Seedance 2.5 AI video model with 30-second generation capability

Jun 22, 2026

ByteDance officially released its Seedance 2.5 AI video model on June 23, 2026, enabling native 30-second single-segment generation and supporting up to 50 multimodal reference inputs. This launch comes amid significant market consolidation, following OpenAI's discontinuation of Sora due to high operational costs and ByteDance's own suspension of the international rollout of Seedance 2.0 over Hollywood copyright disputes. Meanwhile, Alibaba Cloud has expanded its global footprint and upgraded its HappyHorse 1.1 model to capture enterprise demand.

HappyHorse 1.1 release

▪HappyHorse 1.1 supports multi-image reference capability, called Reference-to-Video, to maintain consistent subject identity across generated video frames.
▪Alibaba Cloud released HappyHorse 1.1, an upgrade to its AI video generation model, on June 21, 2026.
▪HappyHorse 1.1 features four generation modes, including text-to-video, image-to-video, subject-to-video, and video editing, with integrated audio output.

Sora shutdown

▪OpenAI discontinued its Sora web and app experiences on April 26, 2026, with the Sora API scheduled to follow on September 24, 2026.
▪OpenAI discontinued Sora because it was financially unsustainable, costing approximately $1 million daily to operate while generating $2.1 million in total revenue.

Seedance model releases and international suspension

▪Seedance 2.5 supports native single-segment video generation up to 30 seconds long without requiring sequential segment stitching.
▪Seedance 2.5 supports up to 50 concurrent multimodal reference inputs, representing a fourfold increase over the 12-input limit in Seedance 2.0.
▪ByteDance indefinitely postponed the international launch of Seedance 2.0 following copyright infringement allegations and legal threats from Hollywood studios.
▪ByteDance officially announced the release of the Seedance 2.5 AI video generation model at the Volcano Engine FORCE Conference on June 23, 2026.

Video Arena benchmark performance

▪HappyHorse 1.0 holds the No. 2 position across all three leaderboards of the Artificial Analysis Video Arena.
▪HappyHorse 1.0 scored 1,444 in both text-to-video and image-to-video categories, leading Google's Veo-3.1 by 69 points in text-to-video.

Alibaba Cloud infrastructure expansion

▪Alibaba Cloud opened its first data centers in France with two availability zones in the Paris region on June 16, 2026.
▪Alibaba Cloud Chief Executive Officer Eddie Wu committed to investing $52.7 billion to build a unified global cloud network.
▪Alibaba Cloud opened its fifth data center in Tokyo, Japan, on June 19, 2026.

Pentagon listing

▪Alibaba rejected its designation on the United States Department of Defense list, stating it is not a Chinese military company.
▪The United States Department of Defense added Alibaba, BYD, and Baidu to its list of Chinese military companies on June 8, 2026.