Doubao is hosted on Volcano Engine (火山引擎), which is ByteDance's cloud arm. Like every Chinese cloud (Aliyun, Tencent Cloud, Baidu Cloud), they apply real-name verification required by the Cyberspace Administration of China:
The international version (Volcano Engine International / volcengineapi.com) lifts some of these requirements, but as of May 2026 Doubao-Seed-2.0-Pro is not yet exposed on the international endpoint. That leaves international developers with two realistic paths.
This is the official route if you want a direct contract with ByteDance.
If you don't need a direct ByteDance contract — you just want Doubao tokens flowing into your product — use an OpenAI-compatible gateway. NovAI is one such proxy with Doubao on its first day of release.
from openai import OpenAI
client = OpenAI(
base_url="https://aiapi-pro.com/v1",
api_key="sk-YOUR_KEY"
)
response = client.chat.completions.create(
model="doubao-seed-2.0-pro",
messages=[
{"role": "system", "content": "You are a concise assistant."},
{"role": "user", "content": "Summarize the EU AI Act in 3 bullet points."}
],
temperature=0.7,
)
print(response.choices[0].message.content)stream = client.chat.completions.create(
model="doubao-seed-2.0-pro",
messages=[{"role": "user", "content": "Write a haiku about latency."}],
stream=True,
)
for chunk in stream:
delta = chunk.choices[0].delta.content
if delta:
print(delta, end="", flush=True)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://aiapi-pro.com/v1",
apiKey: process.env.NOVAI_API_KEY,
});
const res = await client.chat.completions.create({
model: "doubao-seed-2.0-pro",
messages: [{ role: "user", content: "Explain RAG in one paragraph." }],
});
console.log(res.choices[0].message.content);The honest answer: gateways add a markup. Here's a transparent comparison.
| Provider | Doubao Pro Input / 1M | Doubao Pro Output / 1M | Notes |
|---|---|---|---|
| Volcano Engine (official RMB) | ¥2.80 (~$0.39) | ¥14 (~$1.95) | Requires Chinese setup |
| NovAI Gateway | $0.40 | $2.00 | +2.5% over official, no setup |
| Other resellers (avg) | $0.45–0.55 | $2.20–2.50 | Markups 15–30% |
For most teams the gateway markup is invisible compared to the time cost of incorporating in China. If you're spending more than $5,000/month on Doubao you should still revisit the direct path eventually — the markup compounds.
| Error | Cause | Fix |
|---|---|---|
| 401 Invalid API key | Missing sk- prefix or whitespace | Strip whitespace, copy from dashboard |
| 429 Rate limit exceeded | Free tier hits 10 RPM | Top up or add backoff |
| model not found | Wrong model ID | Use exactly doubao-seed-2.0-pro |
| Slow first token (>3s) | Cold-start in low-traffic regions | Use streaming; warm-up call on deploy |
$0.50 free credit on signup. No phone, no ID, no wire transfer. OpenAI-compatible — your existing code works.
Get a Doubao Key Now →Yes. The gateway holds the upstream contract with Volcano Engine; you contract with the gateway. This is the same pattern OpenRouter uses for OpenAI/Anthropic upstreams.
Effectively yes for typical workloads, but a gateway adds one network hop. Expect 50–80 ms additional latency vs a direct call originating from Hong Kong or Singapore.
NovAI does not log prompts or completions by default. Volcano Engine retains 30 days for abuse review (per their official policy). If you have GDPR or HIPAA scope, contact the gateway for an enterprise zero-retention plan.
Information accurate as of May 2026. Volcano Engine policies change frequently — always verify with their current documentation before signing a multi-year contract.