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Doubao Seed Evolving

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volcengine/doubao-seed-evolving
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Doubao-Seed-Evolving is ByteDance Volcengine's continuously updated reasoning model, tracking the latest-version weights with embedded thinking. It is designed for users who need access to the most recent improvements as they ship. Context: 256K tokens, output: 256K. Available via OpenAI and Anthropic protocols through Ofox.

Context Window
256K
Max Output Tokens
256K
Released
2026-06-23
Capabilities
VisionFunction CallingReasoningPrompt CachingWeb SearchVideo Input
Available Providers
VolcengineVolcengine
Supported Protocols
OpenAIopenaiAnthropicanthropic

Providers

VolcengineVolcengine
Input Tokens
$0.884/M
Output Tokens
$4.42/M
Cache Read
$0.177/M
Cache Write
$0.0025/M
Web Search
$0.0012/R
Protocols
OpenAIopenai/v1/chat/completions/v1/responses
Anthropicanthropic

Code Examples

from openai import OpenAI


client = OpenAI(
    base_url="https://api.ofox.run/v1",
    api_key="YOUR_OFOX_API_KEY",
)


response = client.chat.completions.create(
    model="volcengine/doubao-seed-evolving",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)


print(response.choices[0].message.content)

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$0.3/M/$2.5/M

Frequently Asked Questions

Doubao Seed Evolving on Ofox.ai costs $0.884/M per million input tokens and $4.42/M per million output tokens. Pay-as-you-go, no monthly fees.