UnionToken
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1M free tokens on registration

One APIfor Every AI Model

Ultra-low China latency · 100% OpenAI compatible · 200+ models switchable with one click Zero-code migration, best value, pay per token with no monthly fees

Get Started Free →View Docs
200+
Models
<400ms
First Token Latency
¥0.1
Starting Price
99.99%
SLA Uptime

Why UnionToken?

Multi-model API gateway built for developers, solving all pain points of LLM integration

⚡

Ultra-Low Latency

Optimized China routes, Beijing/Shanghai nodes, as low as 10ms

🔗

100% OpenAI Compatible

Just replace the base URL, no code changes needed to use GPT-5.4, Claude Opus 4.6, DeepSeek V3

💰

Best Value

Volume pricing, tiered discounts, pay as you go. Smart routing automatically selects the optimal model, saving up to 40% on costs.

🌐

Global + China Coverage

Supports GPT, Claude, Gemini and other top overseas models, plus DeepSeek, Doubao, Qwen and other leading Chinese models.

🔒

Transparent Pricing

No monthly fees, no subscriptions, no hidden charges, pay only for what you use

🔄

Smart Routing + Fallback

Price-priority / latency-priority / balanced routing modes. Auto-fallback when the primary model is unavailable.

Supported Models

Access models from top providers worldwide with one unified API

O
OpenAI
12 个模型
A
Anthropic
8 个模型
D
DeepSeek
6 个模型
豆
豆包 (Doubao)
10 个模型
通
通义千问
8 个模型
G
Google Gemini
6 个模型
x
xAI Grok
4 个模型
M
Mistral
5 个模型
Popular ModelsView All →
OpenAIGPT-4o
In ¥0.005/1KOut ¥0.015/1KOnline
AnthropicClaude 3.5 Sonnet
In ¥0.003/1KOut ¥0.015/1KOnline
DeepSeekDeepSeek V3
In ¥0.00027/1KOut ¥0.0011/1KOnline
豆包Doubao Pro
In ¥0.0008/1KOut ¥0.002/1KOnline
通义千问Qwen Turbo
In ¥0.0008/1KOut ¥0.002/1KOnline
GeminiGemini 1.5 Pro
In ¥0.00125/1KOut ¥0.005/1KOnline
Developer Experience

3 Lines of Code to Migrate

If you're already using the OpenAI API, just replace base_url and API Key — no code changes needed.

1
Register & Get API Key
Get 1M free tokens on registration
2
Replace base_url
Change https://api.openai.com/v1 to https://api.uniontoken.ai/v1
3
Call any model
Fill in any model identifier as the model parameter — zero code migration
Read Full Docs →
Python Example
# Install SDK
pip install openai
# Example
from openai import OpenAI
client = OpenAI(
base_url="https://api.uniontoken.ai/v1",
api_key="utk_xxxxxxxx",
# ⬆ Replace with your Key
)
response = client.chat.completions.create(
model="gpt-4o",
messages=[
{"role": "user", "content": "你好"}
]
)
print(response.choices[0].message.content)

Testimonials

Hear what developers say

★★★★★

"UnionToken helped us quickly integrate Claude and GPT into our product..."

Z
Zhang Engineer
Excellent Integration Experience
★★★★★

"Through UnionToken's aggregation service, we saved 60% on API costs..."

L
Li Product Manager
Significantly Reduced Costs
★★★★★

"Easy setup, detailed docs, and fast customer support response..."

W
Wang Developer
Great Documentation and Support

Frequently Asked Questions

Still have questions?

Contact Support →

Ready to Get Started?

Get 1M free tokens on registration, no credit card required 3-minute setup, zero cost to try all models

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