Flagship general model with 256K context for complex reasoning, multimodal understanding, structured generation, and tool-augmented execution.
ByteDanceText Generation256K contextMalaysiaProprietary EndpointFlagship general model with 256K context for complex reasoning, multimodal understanding, structured generation, and tool-augmented execution.
seed-2-0-proPOST /v1/chat/completionsPOST /v1/responsesPOST /v1/messagesLive pay-as-you-go rates from the EmpirioLabs catalog. You are billed only for what you use, with no monthly minimum.
Seed 2.0 Pro serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id seed-2-0-pro. Get an API key from the EmpirioLabs dashboard.
curl https://api.empiriolabs.ai/v1/chat/completions \
-H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seed-2-0-pro",
"messages": [
{"role": "user", "content": "Write a haiku about the ocean."}
]
}'from openai import OpenAI
client = OpenAI(
base_url="https://api.empiriolabs.ai/v1",
api_key="YOUR_EMPIRIOLABS_API_KEY",
)
response = client.chat.completions.create(
model="seed-2-0-pro",
messages=[{"role": "user", "content": "Write a haiku about the ocean."}],
)
print(response.choices[0].message.content)Request parameters supported by the Seed 2.0 Pro API on EmpirioLabs. Defaults apply when a field is omitted.
| Parameter | Type | Default | Range / values | Description |
|---|---|---|---|---|
| max_tokens | number | 4096 | 1 to 65536 | Max output tokens |
| frequency_penalty | number | 0 | -2 to 2 | Penalty for repeated tokens. >0 reduces repetition, <0 encourages it. |
| presence_penalty | number | 0 | -2 to 2 | Penalty for new vs. seen tokens. >0 encourages new topics, <0 encourages staying on topic. |
| stop | string | - | - | Comma-separated stop sequences |
| enable_thinking | boolean | true | - | Enable deep thinking / reasoning mode. |
| reasoning_effort | enum | medium | low, medium, high | Reasoning effort tier. Use enable_thinking=false to disable reasoning entirely. |
| enable_web_search | boolean | false | - | Enable BytePlus Ark MCP web search. |
| enable_caching | boolean | false | - | Cache the prompt prefix for ~10 min so follow-up requests reuse it and pay fewer input tokens for the cached portion. |
| image_detail | enum | high | low, high, xhigh | Image visual quality tier for vision input. |
| video_fps | number | - | 0.2 to 5 | Frames per second extracted from video input. |
Pricing is 2x when input tokens >=128K. Temperature and top_p are server-fixed (temp=1, top_p=0.95) regardless of client value.
On EmpirioLabs, Seed 2.0 Pro is billed pay as you go: Input <=128K $0.63; 128K-256K $1.26 per 1M prompt tokens; Output <=128K $3.79; 128K-256K $7.58 per 1M generated tokens. The live rate card on this page always matches what the API charges.
Seed 2.0 Pro supports a 256K-token context window with up to 128,000 output tokens per response.
Yes. Seed 2.0 Pro serves the OpenAI-compatible Chat Completions API, so existing OpenAI SDKs work by pointing base_url at https://api.empiriolabs.ai/v1 and setting the model id to seed-2-0-pro.
Yes. The EmpirioLabs playground runs Seed 2.0 Pro in the browser with the same parameters the API exposes, so you can test prompts before writing code.
Create an EmpirioLabs account, then generate a key under API Keys in the dashboard. Billing is pay-as-you-go credits, so you only pay for the requests you make.
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