# GPT-5.4 High API Pricing

As of October 10, 2026, GPT-5.4 High costs $2.50 per 1M input tokens and $15.00 per 1M output tokens on AIHubMix, with cache reads at $0.25 per 1M tokens. It has a 1,050,000-token context window and returns up to 128,000 tokens per response.

- Page: https://models.litellm.ai/models/gpt-5.4-high
- Lab: OpenAI
- LiteLLM model name: `aihubmix/gpt-5.4-high`
- Context window: 1,050,000 tokens
- Max output: 128,000 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 |
|---|---|---|---|---|---|---|---|
| AIHubMix | `aihubmix/gpt-5.4-high` | $2.50 | $15.00 | $0.25 | – | – | 1M |

## Cost examples

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

- AIHubMix: $12.50

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

- AIHubMix: $28.00

## Features

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

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="aihubmix/gpt-5.4-high",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does GPT-5.4 High cost?

GPT-5.4 High costs $2.50 per 1M input tokens and $15.00 per 1M output tokens on AIHubMix, with cache reads at $0.25 per 1M tokens.

### What is the context window of GPT-5.4 High?

GPT-5.4 High has a 1,050,000-token context window and returns up to 128,000 tokens per response.

### Which providers offer GPT-5.4 High?

GPT-5.4 High is available from AIHubMix through LiteLLM, using the model name aihubmix/gpt-5.4-high.

### How do I call GPT-5.4 High with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="aihubmix/gpt-5.4-high", 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 GPT-5.4 High support?

GPT-5.4 High supports function calling, structured output, image input, reasoning, prompt caching and web search.

### When did LiteLLM add GPT-5.4 High?

GPT-5.4 High 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