# GPT-35 Turbo API Pricing

As of October 10, 2026, GPT-35 Turbo costs $0.50 per 1M input tokens and $1.50 per 1M output tokens on Azure OpenAI. It has a 4,097-token context window and returns up to 4,096 tokens per response.

- Page: https://models.litellm.ai/models/gpt-35-turbo
- Lab: OpenAI
- LiteLLM model name: `azure/gpt-35-turbo`
- Context window: 4,097 tokens
- Max output: 4,096 tokens
- Added to LiteLLM: January 2024
- 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 |
|---|---|---|---|---|---|---|---|
| Azure OpenAI | `azure/gpt-35-turbo` | $0.50 | $1.50 | – | – | – | 4K |

## Cost examples

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

- Azure OpenAI: $1.75

## Features

Supported: Function calling.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="azure/gpt-35-turbo",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does GPT-35 Turbo cost?

GPT-35 Turbo costs $0.50 per 1M input tokens and $1.50 per 1M output tokens on Azure OpenAI.

### What is the context window of GPT-35 Turbo?

GPT-35 Turbo has a 4,097-token context window and returns up to 4,096 tokens per response.

### Which providers offer GPT-35 Turbo?

GPT-35 Turbo is available from Azure OpenAI through LiteLLM, using the model name azure/gpt-35-turbo.

### How do I call GPT-35 Turbo with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="azure/gpt-35-turbo", 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-35 Turbo support?

GPT-35 Turbo supports function calling.

### When did LiteLLM add GPT-35 Turbo?

GPT-35 Turbo was added to LiteLLM's model price file in January 2024.

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