Doubao Seed Evolving

Name: Doubao Seed Evolving
Price: 0.42 USD
Availability: InStock
Author: Doubao

52% below official

A continuously updated Doubao Seed model that ByteDance refreshes with its latest training improvements, priced the same as Seed 2.1 Pro. Pick it if you want new capabilities as soon as they ship and can accept behaviour changing between updates.

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Input: $0.42
Output: $2.11
Cached input: $0.085
Context: —
Family: Doubao

Pricing

USD per 1M tokens, charged from your prepaid balance. How billing works

Comparison input length

Input$0.42Official $0.8965

Output$2.11Official $4.482

Cached input$0.085Official $0.1793

Input tokens Output tokens

Estimated cost per request $0.0019

Official comparison methodology & sources

For the selected input length, each rate uses the higher of domestic and overseas official standard pay-as-you-go prices. Domestic rates are converted to USD. Savings use the lower input/output discount; storage, tool fees and batch discounts are excluded. Image, video and audio models are compared at the same model version and unit; our video price is the same at every resolution, so the comparison uses the official price at the lowest resolution the model supports. Only models with a published official price are shown.

Exchange rate: 1 USD = 6.692782 CNY · 2026-10-12 · ECB ↗

Official price sources: 智谱 GLM CN ↗ Global ↗ · DeepSeek CN ↗ Global ↗ · 豆包 / Doubao · Kimi CN ↗ Global ↗ · MiniMax CN ↗ Global ↗ · OpenAI Global ↗ · xAI Global ↗ · BytePlus · 阿里云百炼 / Model Studio Global ↗ · Krea Global ↗ · Stability AI Global ↗ · Kling Global ↗ · Vidu Global ↗ · MiniMax 视频 Global ↗ · LTX Global ↗ · Prices checked 2026-10-18

API

POST /v1/chat/completions

OpenAI-compatible. Use your BigModel.io key with any OpenAI SDK by changing the base URL.

Request example

Set BIGMODEL_API_KEY in your terminal to your API key, then run one of these. The Python and Node.js samples use the official OpenAI SDK.

Language

curl https://bigmodel.io/v1/chat/completions \
  -H "Authorization: Bearer $BIGMODEL_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "doubao-seed-evolving",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ]
}'

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Use in Claude Code, Cursor and other tools

Set the model to doubao-seed-evolving after following the guide for your tool.

On BigModel.io

Model ID: doubao-seed-evolving
Inputs: Text
Outputs: Text
Developer: Doubao