# GPT-5.6 Sol Pro API Pricing

As of October 31, 2026, GPT-5.6 Sol Pro costs $5.40 per 1M input tokens and $27.00 per 1M output tokens on Kyma API, with cache reads at $0.675 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-5.6-sol-pro
- Lab: OpenAI
- LiteLLM model name: `kyma/gpt-5.6-sol-pro`
- Context window: 1,050,000 tokens
- Max output: 128,000 tokens
- Added to LiteLLM: September 11, 2026
- Prices updated: October 30, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Kyma API | `kyma/gpt-5.6-sol-pro` | $5.40 | $27.00 | $0.675 | – | – | 1M |

## Cost examples

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

- Kyma API: $24.30

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

- Kyma API: $59.40

## Features

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

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="kyma/gpt-5.6-sol-pro",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## Cost calculator

10,000 requests a day with 1,000 input and 500 output tokens each, at Kyma API's price: $0.0189 per request, $189 per day, $5,670 per month (30 days). Try other numbers at https://models.litellm.ai/calculator?model=gpt-5.6-sol-pro

## FAQ

### How much does GPT-5.6 Sol Pro cost?

GPT-5.6 Sol Pro costs $5.40 per 1M input tokens and $27.00 per 1M output tokens on Kyma API, with cache reads at $0.675 per 1M tokens.

### What is the context window of GPT-5.6 Sol Pro?

GPT-5.6 Sol Pro has a 1,050,000-token context window and returns up to 128,000 tokens per response.

### Which providers offer GPT-5.6 Sol Pro?

GPT-5.6 Sol Pro is available from Kyma API through LiteLLM, using the model name kyma/gpt-5.6-sol-pro.

### How do I call GPT-5.6 Sol Pro with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="kyma/gpt-5.6-sol-pro", 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-5.6 Sol Pro support?

GPT-5.6 Sol Pro supports function calling, structured output, image input, PDF input, reasoning and prompt caching.

### When did LiteLLM add GPT-5.6 Sol Pro?

GPT-5.6 Sol Pro was added to LiteLLM's model price file on September 11, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json. Maintainers update it from each provider's published pricing, and this page is usually rebuilt within 20 minutes of every change.