# Doubao Seed 2.1 Turbo 260628 API Pricing

As of October 10, 2026, Doubao Seed 2.1 Turbo 260628 costs $0.4313 per 1M input tokens and $2.156 per 1M output tokens on Volcano Engine, with cache reads at $0.08625 per 1M tokens. It has a 256,000-token context window and returns up to 256,000 tokens per response.

- Page: https://models.litellm.ai/models/doubao-seed-2-1-turbo-260628
- Lab: ByteDance
- LiteLLM model name: `volcengine/doubao-seed-2-1-turbo-260628`
- Context window: 256,000 tokens
- Max output: 256,000 tokens
- Added to LiteLLM: September 16, 2026
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Volcano Engine | `volcengine/doubao-seed-2-1-turbo-260628` | $0.4313 | $2.156 | $0.08625 | – | – | 256K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Volcano Engine: $1.941

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Volcano Engine: $4.744

## Features

Supported: Function calling, Image input, Reasoning, Prompt caching.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="volcengine/doubao-seed-2-1-turbo-260628",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Doubao Seed 2.1 Turbo 260628 cost?

Doubao Seed 2.1 Turbo 260628 costs $0.4313 per 1M input tokens and $2.156 per 1M output tokens on Volcano Engine, with cache reads at $0.08625 per 1M tokens.

### What is the context window of Doubao Seed 2.1 Turbo 260628?

Doubao Seed 2.1 Turbo 260628 has a 256,000-token context window and returns up to 256,000 tokens per response.

### Which providers offer Doubao Seed 2.1 Turbo 260628?

Doubao Seed 2.1 Turbo 260628 is available from Volcano Engine through LiteLLM, using the model name volcengine/doubao-seed-2-1-turbo-260628.

### How do I call Doubao Seed 2.1 Turbo 260628 with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="volcengine/doubao-seed-2-1-turbo-260628", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Doubao Seed 2.1 Turbo 260628 support?

Doubao Seed 2.1 Turbo 260628 supports function calling, image input, reasoning and prompt caching.

### When did LiteLLM add Doubao Seed 2.1 Turbo 260628?

Doubao Seed 2.1 Turbo 260628 was added to LiteLLM's model price file on September 16, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json