字节跳动发布 Seedance 2.5 视频生成模型，单次生成时长翻倍至 30 秒，将陆续上线即梦 AI、豆包专业版，API 接入火山方舟，覆盖影视、广告、教育、工业制造及自动驾驶等场景。该模型延续多模态音视频联合生成架构，重点提升长叙事、多模态参考与编辑能力，推动 AI 视频从短片段迈向长内容创作。
字节跳动发布豆包视频生成模型Seedance2.5，单条视频最长30秒，时长目前全球第一，已在全球企业内测，预计7月初正式发布。
2026年6月23日火山引擎FORCE大会，字节跳动发布豆包大模型重大升级：推出2.1Pro，聚焦编程、智能体与视觉语言模型；同时发布视频生成模型Seedance 2.5及2.04K版、图像生成模型Seedream 5.0 Pro、音频生成模型1.0。2.1Pro已开放API并接入扣子生态。火山引擎总裁谭待表示，豆包面向用户的日常基础功能（如搜索问答）将持续免费。
火山引擎在2026原动力大会上发布豆包视频生成模型Seedance 2.5，实现跨越式升级。新模型支持单段原生30秒视频直出，可同时导入最多50个全模态素材，生成可控性大幅提升。目前全球企业内测，预计7月初正式上线。
Openai
$2.8
Input tokens/M
$11.2
Output tokens/M
1k
Context Length
Google
$0.49
$2.1
Xai
$1.4
$3.5
2k
$7.7
$30.8
200
-
Anthropic
$105
$525
$0.7
$7
$35
$17.5
$21
Alibaba
$4
$16
$1
$10
256
$2
$20
Baidu
128
$6
$24
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