doubao · Balanced
Doubao Seed 2.1 Pro
Higher-capability model in the Doubao Seed 2.1 family for agentic coding, long-context analysis, complex instruction following, and productivity workflows. Supports a 256k context window and up to 128k output tokens. Note: privacy and logging guarantees may be limited.
- Input
- Text
- Output
- Text
- Discovery tier
- Balanced
Pricing
USD per 1M tokens- Input
- $1.00
- Output
- $5.00
Reference prices as published by the model provider. API example
Specifications
- Context window
- 256K
- Max output
- 128K
- Average output (7 days)
- 2.7K tokens
- Longer than 95% of 465 models
Side by side
Doubao Seed 2.1 Pro compared
Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.
| Doubao Seed 2.1 ProdoubaoThis model | ByteDance Seed 2.1 TurbodoubaoRemove | |
|---|---|---|
| Provider | doubao | doubao |
| Discovery tier | Balanced | Balanced |
| Added | Jun 23, 2026 | Aug 12, 2026 |
| Limits | ||
| Context window | 256K | 262.14KBest |
| Max output | 128K | — |
| Average output | 2.7K tokens | 257 tokens |
| Pricing, USD per 1M tokens | ||
| Input | $1.00 | $0.50Best |
| Output | $5.00 | $2.50Best |
| Capabilities | ||
| Reasoning | No | Yes |
| Tools | No | Yes |
| Vision | No | Yes |
| Structured output | No | Yes |
| Video input | No | Yes |
| Reasoning effort | — | — |
Public evaluations
Benchmarks
There are no public benchmark results for these models yet.
Live routing data
Performance and reliability
Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.
- Prompt cache hits
- 0.0%
Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.
Developers
Use it through the API
Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.
curl https://www.noumen.xyz/api/v1/chat/completions \
-H "Authorization: Bearer $NOUMEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/doubao-seed-2.1-pro",
"messages": [{ "role": "user", "content": "Explain this stack trace." }]
}'import os
from openai import OpenAI
client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
model="bytedance/doubao-seed-2.1-pro",
messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)doubao
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