doubao · Balanced

Doubao 1.5 Pro 256k

Added Mar 12, 2025

Doubao's (Bytedance) flagship model with a 256k token context window. ⚠️ Note: This model routes through ByteDance, a Chinese entity - privacy and logging guarantees may be limited.

Input: Text
Output: Text
Discovery tier: Balanced

Pricing

USD per 1M tokens

Input: $0.80
Output: $1.45

Reference prices as published by the model provider. API example

Specifications

Context window: 256K
Max output: 16.4K

Side by side

Doubao 1.5 Pro 256k compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

Limits
	Doubao 1.5 Pro 256kdoubaoThis model	AionLabs: Aion-2.0aionlabsRemove
Provider	doubao	aionlabs
Discovery tier	Balanced	Balanced
Added	Mar 12, 2025	Feb 23, 2026
Context window	256KBest	131.07K
Max output	16.38K	32.77KBest
Average output	—	631 tokens
Pricing, USD per 1M tokens
Input	$0.80Best	$0.80
Output	$1.45Best	$1.60
Cache read	—	$0.20
Performance
Request success (24h)	—	100.0%
Capabilities
Tools	No	Yes
Reasoning effort	—	—

Public evaluations

Benchmarks

There are no public benchmark results for these models yet.

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart

curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-1.5-pro-256k",
    "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="doubao-1.5-pro-256k",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

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