Doubao Seed 2.0 Code Preview (Build 260215)(Deprecated)

Seed 2.0 Code is a flagship coding model by ByteDance, engineered for 128k context reasoning. This seed version excels at repository-level logic, UI-to-code tasks, and high-concurrency API performance for modern engineering teams.

Modalities

Context

API Usage Examples

curl --request POST "https://gptproto.com/v1/chat/completions" \
    --header "Authorization: Bearer $GPTPROTO_API_KEY" \
    --header "Content-Type: application/json" \
    --data '{
        "model": "doubao-seed-2-0-code-preview-260215",
        "messages": [
            {
                "role": "user",
                "content": "Hello"
            }
        ]
    }'

Doubao Seed 2.0 Code Preview 260215 pricing

Chat, coding agents & document work. Priced per 1M tokens — input, cached input and output are billed separately. GPTProto is 20% below official rates.

Scenario	Bytedance list	OpenRouter	GPTProto	You save / mo
Personal10M tokens / mo (4.8M cached)	$6.57	$6.93	$5.25	−$1.31≈ $15.77 / yr
Team100M tokens / mo (48M cached)	$65.67	$69.29	$52.54	−$13.14≈ $157.66 / yr
Business500M tokens / mo (240M cached)	$328.37	$346.43	$262.68	−$65.69≈ $788.30 / yr

Monthly cost by source

OpenRouter

$0.00

Bytedance

$0.00

GPTProto

$0.00

Save $0.00 / month

Annual savings ≈ $0.00 · pay as you go

Core Features of Seed 2.0 Code

Seed 2.0 Code provides a suite of advanced developer tools, from 128k repository reasoning to multimodal UI-to-code conversion, all powered by an efficient seed-based engine.

Repository-Level Seed Logic

Identifies cross-module dependencies and race conditions within a massive 128k token window for deep code understanding.

Visual UI-to-Code Seed

Converts Figma and Sketch screenshots into production React and Tailwind components with 92% layout accuracy.

Sub-second Seed Inference

Achieves TTFT under 200ms, providing the speed necessary for high-concurrency coding tasks and real-time IDE support.

Zero-Shot Seed Testing

Improves unit test branch coverage by 15% in Rust and Go compared to previous iterations of the seed architecture.

Seed 2.0 Code Support & API Details

Explore technical questions about the Seed 2.0 Code model, ByteDance integration, and how this seed architecture optimizes your programming workflow and API performance.

How does Seed 2.0 Code handle complex repositories?

Seed 2.0 Code is specifically engineered for repository-level logic. This seed model handles up to 128,000 tokens, allowing it to understand cross-file dependencies and complex architectural patterns. Compared to general models, this seed 2.0 provides much higher accuracy for specialized programming tasks like race condition detection and modular refactoring, ensuring your code remains clean and maintainable across large-scale projects.

Can I use Seed 2.0 Code for UI and frontend design?

Yes, the Seed 2.0 Code model features a specialized vision-encoder. It can convert high-fidelity UI screenshots from Figma or Sketch into production-ready Tailwind CSS, React, or Vue components. This seed 2.0 architecture maintains a 92% layout accuracy score, making it an excellent tool for rapid frontend prototyping. Simply provide the image as input, and the seed will generate the corresponding code structure automatically.

Is the Seed 2.0 Code API OpenAI-compatible?

Absolutely. The Seed 2.0 Code endpoint on GPTProto.com is fully OpenAI-compatible. You can use standard OpenAI SDKs in Python or Node.js by simply updating your base URL and model name to the seed 2.0 identifier. This allows for a seamless migration from other models like Claude 3.5 Sonnet without rewriting your entire integration logic, though we recommend a lower temperature for the most deterministic seed results.

How does Seed 2.0 Code handle data privacy?

Data privacy is a priority for the Seed 2.0 Code implementation. As per our agreement with ByteDance, all inputs and code snippets sent to the seed 2.0 endpoint are strictly excluded from the training loop. This ensures that your proprietary logic and sensitive repository data remain confidential. We provide enterprise-grade security for the seed API, making it suitable for professional engineering teams and corporate environments.

What is the typical latency for a Seed 2.0 Code request?

Seed 2.0 Code is optimized for high-concurrency and speed. Leveraging ByteDance’s distributed inference infrastructure, the seed 2.0 achieves a Time-to-First-Token (TTFT) under 200ms for standard queries. This makes the seed one of the fastest flagship-tier models available, significantly reducing the wait time during interactive coding sessions or automated CI/CD pipeline audits where high-speed seed responses are critical.

Which programming languages does Seed 2.0 Code support?

The Seed 2.0 Code model supports over 80 programming languages. It shows primary proficiency in Python, TypeScript, Go, Rust, Java, and C++. Additionally, this seed architecture is uniquely capable of generating bilingual comments and documentation in both Chinese and English. This makes the seed 2.0 an ideal choice for global teams managing mixed-language codebases that require clear technical documentation in multiple locales.