Doubao is an AI assistant launched by ByteDance in 2023 and continuously upgraded through 2026. It is part of the large-model product matrix jointly developed by ByteDance's Volcano Engine and Flow departments. As one of the first general-purpose large-model applications in China to pass the filing requirements under the Interim Measures for the Management of Generative AI Services, Doubao is based on ByteDance's self-developed Doubao LLM series, which includes multiple parameter versions such as Pro, Lite, and Speed. It features dense models with over 100 billion parameters and MoE sparse model architectures, supporting multi-modal comprehension and generation across text, images, audio, and video.

By 2026, Doubao has evolved from a simple conversational tool into a super AI workbench integrating creation, office work, learning, and entertainment, with over 250 million monthly active users. In the enterprise market, it provides API services through the Volcano Ark platform, becoming one of the leading products in China's general large-model field with the largest user base and broadest scenario coverage. Its core technology stack includes the self-developed Lark (Skylark) inference engine, an efficient training framework, and large-scale RLHF alignment technology, achieving internationally leading performance in Chinese understanding, logical reasoning, code generation, and long-text processing. It is widely recognized as one of the domestic mainstream models benchmarked against ChatGPT and Claude.

• Multi-modal Conversational Understanding - Supports text, image, voice, and video input. Accurately recognizes, parses, and answers questions about image content; audio input supports real-time speech transcription and sentiment analysis, enabling full-sensory interaction.
• Ultra-long Context Handling - The latest version of Doubao supports a context window of up to 1M tokens, capable of processing long texts equivalent to the Three-Body Problem trilogy in one go. Suitable for complete book analysis, large-scale codebase review, long report summarization, and more.
• Agent Workflow Orchestration - Built-in “Doubao Agent Plaza” allows users to create custom AI agents in natural language, configure tool calls, knowledge base attachments, and task orchestration, enabling automated business pipelines.
• Professional Creation Workshop - Integrates vertical functions such as AI writing, PPT generation, mind mapping, paper polishing, and code review. Output formats cover Markdown, HTML, Word, and PDF, with one-click copy and export.
• Real-time Web Retrieval - Enabled by default for web search, fetching the latest news, real-time data, and academic papers, with automatic source citations to address the timeliness issue of large-model knowledge.
• Multi-language Translation and Localization - Supports translation between over 100 languages, with particular strength in business scenarios such as Chinese, English, Japanese, Korean, and French, preserving context and cultural nuances, and offering customizable terminology databases.

• Step 1: Registration and Login - Visit the Doubao official website (www.doubao.com) or download the mobile app. Log in with your phone number, Douyin account, or Feishu account. New users receive a free basic compute quota.
• Step 2: Familiarize Yourself with the Workbench Interface - After logging in, you enter the main conversation interface. On the left are conversation history and agent lists; at the top, you can switch between modes such as “Chat,” “Writing,” “Translation,” “Coding,” and “Agent Plaza”; a drawer on the right allows parameter settings (e.g., temperature, length, context memory toggle).
• Step 3: Input Prompts and Tasks - Describe your needs in natural language in the input box. You can attach files (images, documents, audio), use “@” to invoke specific agents (e.g., @code assistant, @academic advisor), then click send to generate. You can interrupt, follow up, or modify in real time.
• Step 4: Export and Collaboration - Generated results can be copied, downloaded, or shared as text, Word, PDF, or Markdown. You can also send them directly to Feishu, WeChat, or email. The enterprise version supports multi-person collaborative editing of the same conversation and saving conversations as reusable prompt templates.

Example 1: Weekly Work Report Generation - Prompt: 'Based on this week's work summary (attached document), please generate a professional weekly report that highlights key achievements and next week's plans, with a formal and concise tone, and present data comparisons in a table.' Doubao will automatically extract key information, generate a well-structured report including achievement lists, data tables, and risk alerts, and output it in a directly pasteable Markdown format.

Example 2: Code Debugging and Refactoring - Prompt: 'Here is my Python code (attached). It raises an IndexError at runtime. Please analyze the cause, provide a fix, and suggest more Pythonic ways to write it.' Doubao will locate the error line, explain the boundary issue, provide corrected code, and offer optimized examples using list comprehensions or enumerate, along with a comparison of time complexity.

Example 3: Academic Literature Review - Prompt: 'Please search for review papers on safety alignment of large models published between 2024 and 2026, list 10 core papers, summarize each paper's research contribution in 3 sentences, and provide a classification of their methods.' Doubao will perform online retrieval of real literature, output a list with DOI links, and generate a comparison table.

• Leveraging ByteDance's Ecosystem for a Significant Data Flywheel Effect - Relying on massive real Chinese corpora and user feedback from platforms like Douyin and Toutiao, Doubao continuously optimizes context understanding and preference alignment, outperforming many international models in scenario-specific response quality.
• Ultra-low Inference Cost - Through self-developed inference engines and extreme operator optimization, the Doubao large-model API price is only about 1/10 of the industry average (approx. 0.1 RMB per thousand tokens), offering a clear cost advantage for large-scale commercial use.
• Native Multi-modal Support - Native integration of vision, speech, and video encoders within a unified Transformer architecture eliminates the need for external modules, delivering smoother multi-modal joint inference.
• Deep Integration with Feishu - Native connectivity with Feishu multi-dimensional tables, documents, and meetings enables one-click embedding of AI capabilities into enterprise collaborative workflows, making it an excellent entry point for B2B office scenarios.
• Thriving Agent Ecosystem - With over 5 million user-created agents covering verticals such as legal consultation, mental health, and game guides, it forms a positive-feedback community moat.

Doubao's main competitors include OpenAI ChatGPT, Baidu's ERNIE Bot, and Alibaba's Tongyi Qianwen. Compared with ChatGPT, Doubao is more accurate at understanding Chinese cultural idioms and internet slang, offers a more generous free tier (ChatGPT's free version has more limitations), and better aligns with domestic users' needs in web retrieval and localized content. Compared with Baidu's ERNIE Bot, Doubao demonstrates stronger capabilities in long-text processing and multi-modal generation (ERNIE lags slightly in logical reasoning), while ByteDance's content ecosystem (Douyin, Toutiao) provides richer creative resources. Compared with Tongyi Qianwen, Doubao achieves higher accuracy in code execution and programming assistance scenarios and hosts a more active agent community, though Tongyi has unique advantages in Alibaba Cloud enterprise service integration.

Doubao adopts a three-tier business model: “free + value-added subscription + API billing”.

• Free Tier - All registered users can use the standard model (Doubao Lite) unlimited times, supporting basic conversation, writing, and translation. However, generation speed is slightly slower, queueing may occur during high concurrency, and ultra-long context is not supported.
• Doubao Pro Membership (Personal Subscription) - 30 RMB/month or 300 RMB/year, unlocking the most powerful model (Doubao Pro 1.5) with priority compute, 1M context, advanced web retrieval, PDF/PPT generation, unlimited custom agents, and exclusive mobile features.
• Team Edition - 99 RMB per person per month, including deep Feishu integration, enterprise knowledge base attachment, admin console, audit logs, shared workspace, and team templates.
• API Billing - Billed per token on the Volcano Ark platform. Doubao Lite costs 0.1 RMB per thousand tokens, Doubao Pro costs 1.0 RMB per thousand tokens. Multi-modal image input is billed separately (1 RMB per thousand images). Customized enterprise deployment and private deployment solutions are available on an annual quote basis.

• Content Creators and Self-Media Operators - Including short-video script writers, official account operators, Little Red Book bloggers, and video uploaders. Doubao provides hit-copy writing, title optimization, hot topic tracking, and multi-platform adaptation, greatly improving topic selection and output efficiency.
• Software Engineers and Developers - Used for code generation, unit test writing, bug fixing, and architecture design suggestions. Supports 20+ programming languages and can be customized for enterprise codebases (enterprise version), serving as a reliable AI-assisted programming partner.
• Students and Academic Researchers - From homework help, paper polishing, and literature reviews to data analysis, Doubao supports academic English norms, automatic citation format generation, and can act as a virtual tutor for in-depth concept explanations.
• Enterprise Office and Operations Staff - Suitable for marketing, HR, and administrative positions, quickly generating PPTs, meeting minutes, emails, contract summaries, and data analysis reports. Via Feishu integration, it enables team-level knowledge accumulation and process automation.

• Workplace Copywriting and Official Document Creation - One-click generation of notices, requests, summaries, competitive analyses, and other official documents, supporting strict language style and format requirements, reducing writing time by 80%.
• Programming Assistance and Code Review - Developers can get real-time code suggestions, performance optimizations, vulnerability scans, and automatic generation of comments and API documentation. Supports direct invocation from IDE plugins (VSCode, JetBrains).
• Cross-border E-commerce and Multi-language Localization - Product copy, customer service replies, and marketing emails are automatically translated and localized to adapt to local cultural habits. Supports API integration with mainstream e-commerce platforms.
• Intelligent Customer Service and Knowledge Base Q&A - Enterprises can upload product manuals and after-sales FAQs to build a dedicated AI customer service, supporting multi-turn dialogue and emotion recognition, integrated into websites, apps, or official accounts via API.
• Educational Tutoring and Personalized Learning - Students can generate customized exercises and explanations for weak knowledge points, while teachers can automatically grade essays and generate comments. Supports photo-based problem solving.