# Seed 1.8 API Pricing

As of October 10, 2026, Seed 1.8 costs $0.25 per 1M input tokens and $2.00 per 1M output tokens on DeepInfra, with cache reads at $0.05 per 1M tokens. It has a 256,000-token context window.

- Page: https://models.litellm.ai/models/seed-1.8
- Lab: ByteDance
- LiteLLM model name: `deepinfra/ByteDance/Seed-1.8`
- Context window: 256,000 tokens
- Added to LiteLLM: August 27, 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 |
|---|---|---|---|---|---|---|---|
| DeepInfra | `deepinfra/ByteDance/Seed-1.8` | $0.25 | $2.00 | $0.05 | – | – | 256K |

## Cost examples

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

- DeepInfra: $1.50

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

- DeepInfra: $2.90

## Features

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

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="deepinfra/ByteDance/Seed-1.8",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Seed 1.8 cost?

Seed 1.8 costs $0.25 per 1M input tokens and $2.00 per 1M output tokens on DeepInfra, with cache reads at $0.05 per 1M tokens.

### What is the context window of Seed 1.8?

Seed 1.8 has a 256,000-token context window.

### Which providers offer Seed 1.8?

Seed 1.8 is available from DeepInfra through LiteLLM, using the model name deepinfra/ByteDance/Seed-1.8.

### How do I call Seed 1.8 with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="deepinfra/ByteDance/Seed-1.8", 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 Seed 1.8 support?

Seed 1.8 supports function calling, structured output, image input, reasoning and prompt caching.

### When did LiteLLM add Seed 1.8?

Seed 1.8 was added to LiteLLM's model price file on August 27, 2026.

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