ByteDance Doubao

Doubao, which translates roughly as 'bean bun', is two things at once. It is a consumer AI assistant app, similar in role to ChatGPT, and it is the brand for ByteDance's family of foundation models, the large neural networks that generate text, images, video and speech. The models are built by ByteDance's Seed research team and sold to businesses through Volcano Engine, ByteDance's cloud computing arm, which also runs an international platform called BytePlus. The app, the models and the cloud share one name, which can make news coverage confusing: 'Doubao 2.0' may refer to an app update, a model release, or both.

The origin is modest. According to Caixin's May 2024 report, the model was first called Yunque, known in English as Skylark, and was among the first AI models in China to receive algorithm registration with regulators in 2023. China requires generative AI services offered to the public to complete such filings. The consumer app reached more than 100 million downloads and over 26 million monthly active users by May 2024, figures ByteDance's vice president of product and strategy Zhu Jun gave at the time.

The turning point for the business side came on 15 May 2024, when Volcano Engine launched the Doubao model family in Beijing. Caixin reported nine models, including Doubao Pro with a context window of up to 128,000 tokens (tokens are the word fragments models process) and a cheaper Doubao Lite, plus models for speech recognition and image generation. Volcano Engine president Tan Dai priced Doubao Pro at about 0.0008 yuan per 1,000 tokens, which he described as 99.8 percent cheaper than OpenAI's GPT-4. Fortune reported that within a week Alibaba cut some Qwen model prices by up to 97 percent, Baidu made its Ernie Speed and Ernie Lite models free for business users, and iFlytek announced its own low prices, a sequence widely called China's LLM price war.

The model line has moved quickly since then. On 14 February 2026, ByteDance released Doubao-Seed-2.0, which TechNode reports was positioned against OpenAI's GPT-5.2 and Google's Gemini 3 Pro for long-chain reasoning and agent tasks, with token pricing about an order of magnitude below comparable models, by ByteDance's account. The official Seed 2.0 model page describes three general-purpose variants: Pro for complex reasoning, Lite as the first omni-modal model in the Seed foundation series that understands video, images, audio and text together, and Mini for high-throughput serving. It lists vendor-reported scores for the Pro model such as 88.9 percent on GPQA Diamond, a graduate-level science quiz, and 46.9 percent on SWE-Bench Pro, a software engineering test. On 23 June 2026, at the Volcano Engine FORCE conference, ByteDance introduced Seed 2.1 in Pro and Turbo versions, with Turbo priced at half of Pro.

Scale is Doubao's defining feature. QuestMobile data reported by Caixin put Doubao at 155 million weekly active users in early December 2025 and 345 million monthly active users in March 2026, the most of any AI app in China, ahead of Alibaba's Qwen, DeepSeek and Tencent's Yuanbao. Qwen added more new users than Doubao in the first quarter of 2026, 126 million against about 100 million, so the race is tight. On the business side, Dataconomy reports that daily token calls across the Doubao model family exceeded 180 trillion by June 2026, more than ten times the level a year earlier, and that IDC credits Volcano Engine with 49.5 percent of China's public cloud model-as-a-service market. These usage figures come from ByteDance, Volcano Engine or third-party trackers rather than audited disclosures.

Compared with Western assistants such as ChatGPT or Gemini, Doubao is focused on the Chinese market and Chinese-language users, and it benefits from ByteDance's distribution through apps like Douyin. Compared with domestic rivals, its strategy has combined aggressive API pricing with consumer reach. DeepSeek drew global attention with openly released models, while Doubao's flagship models are proprietary and offered through apps and paid APIs.

There are clear limits and open questions. Benchmark comparisons with GPT, Gemini or Claude models are ByteDance's own claims and have not been independently replicated in the sources cited here. Caixin notes that no domestic Chinese chatbot has yet sustained revenue from consumer subscriptions alone; Baidu's Ernie Bot tried paid tiers before becoming fully free in April 2025, so Doubao's paid plans are a test. As a service operating in China, Doubao is subject to Chinese content regulation, which shapes what it will discuss. Its smartphone ambitions depend on cooperation from other app makers, which TechNode reports had only been partly secured.

For users, the core app is free, with the paid tiers aimed at heavier professional tasks. For developers, costs are metered per million tokens on Volcano Engine, with cheaper tiers for high-volume work and discounts for cached input; Seed 2.1 Pro cache hits were listed as low as 1.2 yuan per million tokens.