
doubao-seed-1-8-251215
API Overview
Doubao-Seed-1.8 (DouBao Large Model 1.8) is ByteDance’s flagship multimodal language model, primarily positioned as an all-purpose reasoning engine for the Agent era. It has been deeply optimized for complex task planning, tool invocation, and multimodal understanding.
- Comprehensively enhanced Agent capabilities: Significantly upgraded tool invocation, complex instruction following, and OS-level operational abilities, enabling autonomous completion of cross-app, multi-step tasks.
- Breakthrough in video understanding: Supports parsing of up to 1280 frames per video in a single session, allowing for fast browsing at low frame rates combined with focused analysis at high frame rates—ideal for applications such as surveillance and quality inspection.
- Intelligent context management: Natively supports dynamic clearing of low-value historical information, ensuring stable execution of long-running tasks without crashes.
- Leading multimodal understanding: Outperforms top global models in multiple public benchmarks; ranks first globally in the BrowserComp agent evaluation.
───────────────────────────────────────────────────────────────────
Core Capabilities
🧠 Autonomous task planning: When faced with complex, multi-scenario demands, it can automatically decompose tasks, invoke tools, and integrate results.
👁️ Upgraded multimodal understanding: Greatly enhances foundational visual comprehension capabilities, enabling low-frame-rate understanding of ultra-long videos. Additionally, it shows improvements in video motion understanding and complex spatial comprehension abilities.
📄 Deep document collaboration: Simultaneously parses over 10 types of long texts—including email attachments, strategic documents, and industry reports—to generate structured decision recommendations.
🧩 Native Agent architecture: From perception and reasoning to execution, the entire process is completed within a single model, avoiding distortion and latency caused by stitching together multiple modules.
Playground
Log in to explore more features! Click to Log In