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ByteDance · Flagship

Doubao Seed 2.1 Pro API

ByteDance's flagship general model with 256K context, strong reasoning and agentic tool use.

$0.4
Input / 1M tokens
$2
Output / 1M tokens
256K
Context window
ByteDance
Provider
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Why use Doubao Seed 2.1 Pro on NovAI?

  • ByteDance flagship general-purpose model
  • 256K context window
  • Strong reasoning and instruction following
  • Agentic tool calling
  • Official-direct Volcengine access

Pricing

NovAIOpenRouterAccess
Input / 1M tokens$0.4N/AOfficial direct
Output / 1M tokens$2N/AOfficial direct

Best use cases

  • General chat assistants
  • Complex reasoning tasks
  • Agentic workflows
  • Long-document analysis
  • Content generation

Quick start

cURL

curl https://aiapi-pro.com/v1/chat/completions -H "Authorization: Bearer $NOVAI_API_KEY" -H "Content-Type: application/json" -d '{
    "model": "doubao-seed-2.1-pro",
    "messages": [{"role":"user","content":"Explain what this API does in one sentence."}]
  }'

Python

from openai import OpenAI
client = OpenAI(base_url="https://aiapi-pro.com/v1", api_key="YOUR_NOVAI_API_KEY")
resp = client.chat.completions.create(
    model="doubao-seed-2.1-pro",
    messages=[{"role":"user","content":"Explain what this API does in one sentence."}],
)
print(resp.choices[0].message.content)

Works with any OpenAI-compatible SDK - just set base_url to https://aiapi-pro.com/v1 and use your NovAI API key. Full reference in the API docs.

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