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doubao-seed-2-1-pro-260628 API pricing & access

doubao-seed-2-1-pro-260628 API pricing: $0.86 per 1M tokens. doubao-seed-2-1-pro-260628. Supports text, image, video input and text output. Listed spec…

doubao-seed-2-1-pro-260628 API access

doubao-seed-2-1-pro-260628. Supports text, image, video input and text output. Listed specifications follow public vendor documentation. Available features and limits depend on the selected serving channel.

Compare supported API endpoints and capabilities, then access doubao-seed-2-1-pro-260628 through the unified API gateway.

Category: text
Context length: 256000 tokens
Maximum output: 256000 tokens
Supported APIs: OpenAI Chat Completions API, Anthropic Messages API
API endpoints: POST /v1/chat/completions, POST /v1/messages
Input modalities: text, image, video
Output modalities: text
Capabilities: vision, reasoning, function calling, structured output

doubao-seed-2-1-pro-260628 API pricing

Base input price: $0.86 per 1M tokens
Base output price: $4.3 per 1M tokens

Base prices are shown in USD before group-specific adjustments. Open the live pricing page for current access-group prices.

About doubao-seed-2-1-pro-260628

Doubao Seed 2.1 Pro 260628 is relevant to coding delivery, multi-step tool tasks and multimodal understanding. Later 2.1 versions are documented; this page retains 260628 for compatibility regression.

Use fixed cases for the tasks described above. Integration follows the listed endpoint, selected route parameters and current group pricing; official capabilities do not establish acceptance for every channel. Compare seed-2.0-lite.

Official reference 1 · Official reference 2, checked 2026-10-14.

Use cases and prompting

Start with a minimal text request at the listed endpoint, retaining the exact model name.
State goals, context and output format; leave room for the final answer after long inputs.
Validate route-specific thinking or JSON parameters, then check both schema and task correctness.
Compare fixed cases using completion quality, latency, usage and current group pricing; retain request IDs.

API documentation.

How to call doubao-seed-2-1-pro-260628

doubao-seed-2-1-pro-260628 is served through tbuy's unified gateway. Existing OpenAI or Anthropic SDK code keeps working: point base_url at https://modelsok.com and use your tbuy API key.

curl (OpenAI-compatible)

curl https://modelsok.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "doubao-seed-2-1-pro-260628", "messages": [{"role": "user", "content": "Hello"}]}'

Python (openai SDK)

from openai import OpenAI

client = OpenAI(base_url="https://modelsok.com/v1", api_key="YOUR_API_KEY")
response = client.chat.completions.create(
    model="doubao-seed-2-1-pro-260628",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Python (anthropic SDK)

from anthropic import Anthropic

client = Anthropic(base_url="https://modelsok.com", api_key="YOUR_API_KEY")
message = client.messages.create(
    model="doubao-seed-2-1-pro-260628",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)
print(message.content[0].text)

Frequently asked questions about doubao-seed-2-1-pro-260628

What is doubao-seed-2-1-pro-260628?

How do I call doubao-seed-2-1-pro-260628?

Create an API key with access to doubao-seed-2-1-pro-260628, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.

How is doubao-seed-2-1-pro-260628 priced?

Pricing depends on the selected provider group and the model billing unit. Refer to the current input, output, request, or media prices in the pricing section.

What is the context window of doubao-seed-2-1-pro-260628?

The model catalog lists a context window of 256000 tokens. Check the selected endpoint for request limits.

What is the maximum output of doubao-seed-2-1-pro-260628?

The model catalog lists a maximum output of 256000 tokens. Your request settings may set a lower limit.

How should I evaluate doubao-seed-2-1-pro-260628 for my project?

Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.

Back to AI model API pricing