Doubao SEED 2.0 Pro API
ByteDance's flagship model. Strong Chinese language support and competitive quality.
💰 Save up to 70% vs official ByteDance pricingTechnical Specifications
| Provider | ByteDance |
| Model Family | Doubao SEED 2.0 Pro |
| Release Date | 2026-05 |
| Context Window | 128K |
| Max Output Tokens | 16,384 |
| Input Price | $0.45 / 1M tokens |
| Output Price | $2.25 / 1M tokens |
| Vision Support | Yes ✓ |
| Function Calling | No |
| JSON Mode | No |
| Streaming | Yes ✓ |
| Fine Tuning | Not Available |
| Status | Active ✓ |
Overview
Doubao SEED 2.0 Pro is ByteDance's current doubao-class AI model, released in 2026-05. ByteDance's flagship model. Strong Chinese language support and competitive quality.
With a 128K context window and maximum output of 16,384 tokens, Doubao SEED 2.0 Pro is well-suited for best doubao quality and chinese optimized. At $0.45/1M input and $2.25/1M output, it offers extremely competitive pricing within the ByteDance ecosystem.
Doubao SEED 2.0 Pro supports 4 capabilities: Vision, Chinese, Low Latency, Streaming. Fine-tuning is not available for this model. The model serves as an best doubao quality solution for developers building multimodal AI applications.
Through AI API Hub, you can access Doubao SEED 2.0 Pro with USDT & USDC payments, no credit card required. All via a fully OpenAI-compatible API — just change your base URL and start building in 30 seconds.
API Examples
Python
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.apiyihe.org/v1"
)
response = client.chat.completions.create(
model="doubao-seed-2.0-pro",
messages=[
{"role": "user", "content": "Hello"}
]
)
print(response.choices[0].message.content)JavaScript / Node.js
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.API_KEY,
baseURL: "https://api.apiyihe.org/v1"
});
const response = await client.chat.completions.create({
model: "doubao-seed-2.0-pro",
messages: [
{ role: "user", content: "Hello" }
]
});
console.log(response.choices[0].message.content);cURL
curl https://api.apiyihe.org/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "doubao-seed-2.0-pro",
"messages": [
{"role": "user", "content": "Hello"}
]
}'Compare Alternatives
Frequently Asked Questions
What is Doubao SEED 2.0 Pro?
Doubao SEED 2.0 Pro is ByteDance's current doubao model. ByteDance's flagship model. Strong Chinese language support and competitive quality.. It features a 128K context window, supports Vision, Chinese, Low Latency, and is available through AI API Hub with USDT/USDC payments.
How much does Doubao SEED 2.0 Pro cost?
Doubao SEED 2.0 Pro pricing: $0.45 per 1M input tokens, $2.25 per 1M output tokens. Pay-as-you-go with no minimum commitment. Sign up at AI API Hub and start with as little as $5.
Doubao SEED 2.0 Pro vs GPT-5.5?
Doubao SEED 2.0 Pro: $0.45/$1M input, 128K context. GPT-5.5: $5.00/$1M input, 256K context. Doubao SEED 2.0 Pro is more cost-effective. Best Doubao quality. Compare them at /compare/doubao-seed-2.0-pro-vs-gpt-5.5/.
Doubao SEED 2.0 Pro context window?
Doubao SEED 2.0 Pro has a 128K context window, capable of processing up to 128,000 tokens in a single request. Maximum output tokens: 16,384.
Does Doubao SEED 2.0 Pro support function calling?
No, Doubao SEED 2.0 Pro does not natively support function calling. For function calling use cases, consider ByteDance's flagship models.
Is Doubao SEED 2.0 Pro multimodal?
Partially — Doubao SEED 2.0 Pro supports vision (image input) but not native audio processing.
Doubao SEED 2.0 Pro API rate limits?
Doubao SEED 2.0 Pro rate limits: 5K RPM. Higher tier plans offer increased throughput. For high-volume production use, consider ByteDance's faster variant models.
How to access Doubao SEED 2.0 Pro API?
Access Doubao SEED 2.0 Pro through AI API Hub: (1) Register at api.apiyihe.org/register?aff=8JZC, (2) Deposit USDT/USDC, (3) Get your API key instantly, (4) Use the OpenAI-compatible endpoint https://api.apiyihe.org/v1 with model name "doubao-seed-2.0-pro". Start building in under 30 seconds.