# GPT-6 Luna API Pricing

As of October 10, 2026, GPT-6 Luna costs $0.10 per 1M input tokens and $0.50 per 1M output tokens on OpenAI, with cache reads at $0.01 and cache writes at $0.125 per 1M tokens. Across 8 providers on LiteLLM, the input price ranges from $0.10 to $0.11. It has a 922,000-token context window and returns up to 128,000 tokens per response.

- Page: https://models.litellm.ai/models/gpt-6-luna
- Lab: OpenAI
- LiteLLM model name: `gpt-6-luna`
- Context window: 922,000 tokens
- Max output: 128,000 tokens
- Added to LiteLLM: September 22, 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 |
|---|---|---|---|---|---|---|---|
| OpenAI | `gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | 922K |
| Amazon Bedrock | `openai.gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | 1M |
| Amazon Bedrock Mantle | `bedrock_mantle/openai.gpt-6-luna` | $0.11 | $0.55 | $0.011 | – | – | 1M |
| Azure AI Foundry | `azure_ai/gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | 922K |
| Azure OpenAI | `azure/gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | 922K |
| Azure OpenAI (snapshot 2026-09-22) | `azure/gpt-6-luna-2026-09-22` | $0.10 | $0.50 | $0.01 | – | – | 922K |
| ChatGPT Subscription | `chatgpt/gpt-6-luna` | – | – | – | – | – | 922K |
| GitHub Copilot | `github_copilot/gpt-6-luna` | – | – | – | – | – | 272K |
| Perplexity | `perplexity/openai/gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | – |
| Amazon Bedrock (Global cross-region) | `global.openai.gpt-6-luna` | $0.10 | $0.50 | $0.01 | – | – | 1M |
| Amazon Bedrock (US cross-region) | `us.openai.gpt-6-luna` | $0.11 | $0.55 | $0.011 | – | – | 1M |
| Azure OpenAI (eu) | `azure/eu/gpt-6-luna` | $0.12 | $0.60 | $0.012 | – | – | 922K |
| Azure OpenAI (us) | `azure/us/gpt-6-luna` | $0.11 | $0.55 | $0.011 | – | – | 922K |

## Cost examples

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

- OpenAI: $0.45
- Amazon Bedrock: $0.45
- Azure AI Foundry: $0.45
- Azure OpenAI: $0.45
- OpenAI batch: $0.225

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

- OpenAI: $1.10
- Amazon Bedrock: $1.10
- Azure AI Foundry: $1.10
- Azure OpenAI: $1.10

## Features

Supported: Function calling, Parallel tool calls, Structured output, Image input, PDF input, Reasoning, Prompt caching, Web search, Computer use.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="gpt-6-luna",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does GPT-6 Luna cost?

GPT-6 Luna costs $0.10 per 1M input tokens and $0.50 per 1M output tokens on OpenAI, with cache reads at $0.01 and cache writes at $0.125 per 1M tokens. Batch requests cost $0.05 per 1M input tokens and $0.25 per 1M output tokens. Above 272K input tokens, input costs $0.20 and output costs $0.75 per 1M tokens. Across 8 providers on LiteLLM, the input price ranges from $0.10 to $0.11.

### What is the context window of GPT-6 Luna?

GPT-6 Luna has a 922,000-token context window and returns up to 128,000 tokens per response.

### Which providers offer GPT-6 Luna?

GPT-6 Luna is available from 8 providers through LiteLLM: OpenAI, Amazon Bedrock, Amazon Bedrock Mantle, Azure AI Foundry, Azure OpenAI, ChatGPT Subscription, GitHub Copilot and Perplexity. The lowest price is on OpenAI.

### How do I call GPT-6 Luna with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gpt-6-luna", 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-6 Luna support?

GPT-6 Luna supports function calling, parallel tool calls, structured output, image input, PDF input, reasoning, prompt caching, web search and computer use.

### When did LiteLLM add GPT-6 Luna?

GPT-6 Luna was added to LiteLLM's model price file on September 22, 2026.

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