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.

Your usage

Model

Bytedance · ≈ 148M tokens/mo (48M cached)

Monthly volume

OpenRouter

List + 5.5% credit fee

$69.29

per month

Input (non-cached)$15.6578

Cache read$4.6993

Output$48.93

Bytedance

Direct from Bytedance (list price)

$65.67

per month

Input (non-cached)$14.8416

Cache read$4.4544

Output$46.38

BEST VALUE

GPTProto

20% off official

$52.54

per month

After discount$52.54

Effective$52.54

Monthly cost by source

OpenRouter

$69.29

Bytedance

$65.67

GPTProto

$52.54

Save $13.14 / month

on GPTProto vs Bytedance (−20%)

Annual savings ≈ $157.66 · pay as you go

OpenRouter costs include its ~5.5% credit purchase fee. GPTProto applies a per-model discount (10–30% off) and your bonus credits are also spent at discounted rates — savings compound. Estimates assume a 60% cache hit rate.

Related Models

All Models

Doubao Seed 2.0 Code Preview (Build 260215)

Current

byBytedance262K context$0.371/M input$1.8551/M output

DeepSeek Flash

byDeepSeek$0.3/M input$1.2/M output

Hy4 Preview

byHunyuan1.05M context$0.7923/M input$2.376/M output

GPT 6 Astra

byOpenAI1.05M context$8/M input$40/M output

Gemini 3.8 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Claude Fable 5.1

byClaude1M context$9/M input$45/M output

Qwen3.8 Max 0902

byQwen1M context$1.8/M input$5.4/M output

GLM 5.3 Flash

byZ-AI1.31M context$0.15/M input$0.5/M output

DeepSeek v4 Flash Vision Exp

byDeepSeek1.05M context$0.3/M input$1.2/M output

GLM 5.3

byZ-AI1.31M context$1.26/M input$3.96/M output

Gemini 3.7 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Grok 4.6

byGrok500K context$1.2/M input$3.6/M output

Qwen3.8 Max

byQwen1M context$1.8/M input$5.4/M output

Claude Opus 5

byClaude1M context$4.5/M input$22.5/M output

Gemini 3.6 Flash

byGoogle1.05M context$0.9/M input$4.5/M output

Kimi K3

byMoonshotAI1.05M context$2.7/M input$13.5/M output

GPT 5.6 Luna

byOpenAI1.05M context$0.16/M input$0.96/M output

GPT 5.6 Terra

byOpenAI1.05M context$1.6/M input$9.6/M output

Grok 4.5

byGrok500K context$1.2/M input$3.6/M output

Claude Sonnet 5

byClaude1M context$1.8/M input$9/M output

Minimax M3

byMiniMax1.05M context$0.48/M input$0.96/M output

GLM 5.2

byZ-AI1.05M context$1.26/M input$3.96/M output

Qwen3.7 Max

byQwen1M context$0.36/M input$1.44/M output

DeepSeek v4 Flash

byDeepSeek1.05M context$0.3/M input$1.2/M output

Grok 4.3

byGrok1M context$0.75/M input$1.5/M output

Kimi K2.6

byMoonshotAI262K context$0.855/M input$3.6/M output

Minimax M2.5

byMiniMax205K context$0.24/M input$0.96/M output

Kimi K2.5

byMoonshotAI262K context$0.54/M input$2.7/M output

Doubao Seed 1.6 Thinking (Build 250715)

byBytedance262K context$0.0971/M input$0.9714/M output

Doubao Seed 1.6 Thinking (Build 250615)

byBytedance262K context$0.0971/M input$0.9714/M output

Doubao Seed 1.6 Flash (Build 250615)

byBytedance262K context$0.0182/M input$0.1821/M output

Doubao Seed 1.6 (Build 250615)

byBytedance262K context$0.0971/M input$0.2428/M output

Doubao 1.5 Pro 32K (Build 250115)

byBytedance$0.0971/M input$0.2428/M output

Doubao 1.5 Vision Pro 32K (Build 250115)

byBytedance$0.3642/M input$1.0928/M output

Model					Input → Output
Doubao Seed 2.0 Code Preview (Build 260215)Current $		262K	$0.37 / $1.86 per 1M	$0.07 / $0.07 per 1M	Input: TextInput: Image Output: Text
DeepSeek Flash $	—	—	$0.30 / $1.20 per 1M	— / $0.006 per 1M	Input: TextInput: Image Output: Text
Hy4 Preview $		1.05M	$0.79 / $2.38 per 1M	— / $0.04 per 1M	Input: Text Output: Text
GPT 6 Astra $		1.05M	$8.00 / $40.00 per 1M	$10.00 / $0.80 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.8 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text
Claude Fable 5.1 $		1M	$9.00 / $45.00 per 1M	$11.25 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Qwen3.8 Max 0902 $		1M	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text
GLM 5.3 Flash $	—	1.31M	$0.15 / $0.50 per 1M	— / $0.03 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
DeepSeek v4 Flash Vision Exp $	—	1.05M	$0.30 / $1.20 per 1M	— / $0.006 per 1M	Input: TextInput: Image Output: Text
GLM 5.3 $		1.31M	$1.26 / $3.96 per 1M	— / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.7 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.6 $		500K	$1.20 / $3.60 per 1M	— / $0.30 per 1M	Input: TextInput: Image Output: Text
Qwen3.8 Max $		1M	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
Claude Opus 5 $		1M	$4.50 / $22.50 per 1M	$5.63 / $0.45 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.6 Flash $		1.05M	$0.90 / $4.50 per 1M	$0.60 / $0.09 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K3 $		1.05M	$2.70 / $13.50 per 1M	$0.27 / $0.27 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Luna $		1.05M	$0.16 / $0.96 per 1M	$0.20 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Terra $		1.05M	$1.60 / $9.60 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.5 $		500K	$1.20 / $3.60 per 1M	$0.30 / $0.30 per 1M	Input: TextInput: Image Output: Text
Claude Sonnet 5 $		1M	$1.80 / $9.00 per 1M	$2.25 / $0.18 per 1M	Input: TextInput: Document Output: Text
Minimax M3 $		1.05M	$0.48 / $0.96 per 1M	$0.10 / $0.10 per 1M	Input: TextInput: ImageInput: Document Output: Text
GLM 5.2 $		1.05M	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Qwen3.7 Max $		1M	$0.36 / $1.44 per 1M	$0.07 / $0.07 per 1M	Input: TextInput: Document Output: Text
DeepSeek v4 Flash $	—	1.05M	$0.30 / $1.20 per 1M	— / $0.006 per 1M	Input: Text Output: Text
Grok 4.3 $		1M	$0.75 / $1.50 per 1M	$0.12 / $0.12 per 1M	Input: TextInput: Image Output: Text
Kimi K2.6 $		262K	$0.85 / $3.60 per 1M	$0.14 / $0.14 per 1M	Input: TextInput: Document Output: Text
Minimax M2.5 $		205K	$0.24 / $0.96 per 1M	$0.30 / $0.02 per 1M	Input: TextInput: Document Output: Text
Kimi K2.5 $		262K	$0.54 / $2.70 per 1M	$0.09 / $0.09 per 1M	Input: TextInput: Document Output: Text
Doubao Seed 1.6 Thinking (Build 250715) $		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Thinking (Build 250615) $		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Flash (Build 250615) $		262K	$0.02 / $0.18 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 (Build 250615) $		262K	$0.10 / $0.24 per 1M	—	Input: TextInput: Image Output: Text
Doubao 1.5 Pro 32K (Build 250115) $		—	$0.10 / $0.24 per 1M	—	Input: Text Output: Text
Doubao 1.5 Vision Pro 32K (Build 250115) $		—	$0.36 / $1.09 per 1M	—	Input: TextInput: Image Output: Text

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.