---
title: "gpt-5.6-luna - Model Details & Comparison"
description: "gpt-5.6-luna from Github Copilot: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://www.getmaxim.ai/bifrost/model-library/compare/github_copilot/gpt-5.6-luna"
markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/github_copilot/gpt-5.6-luna.md"
---

# gpt-5.6-luna - Model Details & Comparison

> gpt-5.6-luna from Github Copilot: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

- [View MCP Gateway](https://www.getmaxim.ai/resources/mcp-gateway.md)
- [Features](https://www.getmaxim.ai/bifrost/#features)
- [Enterprise](https://www.getmaxim.ai/enterprise)
- [Pricing](https://www.getmaxim.ai/pricing.md)
- [Docs](https://docs.getbifrost.ai)
- [GitHub](https://github.com/maximhq/bifrost)
- [Book a Demo](https://www.getmaxim.ai/book-a-demo)

## About gpt-5.6-luna

gpt-5.6-luna is a responses model from Github Copilot, one of 13 responses models they offer. It is priced at $0.20 per 1M input tokens and $1.20 per 1M output tokens, ranking 12 out of 171 responses models by cost and cheaper than 91% of models in this category. gpt-5.6-luna supports vision, function calling, reasoning, structured output. It accepts up to 200K input tokens.

## Specifications

- **Github Copilot Provider.**
- **Responses Mode.**
- **200,000 Max Input Tokens.**
- **128,000 Max Output Tokens.**
- **$0.20 / 1M tokens Input Price.**
- **$1.20 / 1M tokens Output Price.**

## Capabilities

gpt-5.6-luna supports: Function Calling, Vision, Reasoning, Parallel Function Calling, Response Schema.

## gpt-5.6-luna Pricing Overview

At $0.20 per 1M input tokens and $1.20 per 1M output tokens, gpt-5.6-luna ranks 12 out of 171 responses models by input cost. It is more affordable compared to the median of $2.00 for responses models, and is cheaper than 91% of models in this category.

gpt-5.6-luna is one of 13 Github Copilot responses models, with support for vision, function calling, reasoning, structured output.

## Models to Compare

Alternatives to gpt-5.6-luna with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| gpt-5.1-codex-mini | Azure | $0.25 | $2.00 |
| gpt-5.1-codex-mini-2025-11-13 | Azure | $0.25 | $2.00 |
| gpt-5.1-codex-mini | OpenAI | $0.25 | $2.00 |
| openai.gpt-5.6-luna | Bedrock Mantle | $0.22 | $1.32 |
| gpt-5.6-luna | Opencode Go | $0.20 | $1.20 |

- [Compare gpt-5.1-codex-mini](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.1-codex-mini.md)
- [Compare gpt-5.1-codex-mini-2025-11-13](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.1-codex-mini-2025-11-13.md)
- [Compare gpt-5.1-codex-mini](https://www.getmaxim.ai/bifrost/model-library/compare/openai/gpt-5.1-codex-mini.md)

## Related Resources

- [Calculate gpt-5.6-luna costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/github_copilot/model/gpt-5.6-luna.md)
- [All Github Copilot pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/github_copilot.md)

## FAQ

### Is gpt-5.6-luna cheaper than gpt-5.1-codex-mini?

Yes. gpt-5.6-luna costs $0.20 per 1M input tokens compared to gpt-5.1-codex-mini's $0.25 per 1M input tokens, making it 25% more affordable. Both are responses models and share support for vision, function calling, reasoning, prompt caching, structured output.

### How does gpt-5.6-luna pricing compare to the average responses model?

gpt-5.6-luna input pricing is $0.20 per 1M tokens, which is 90% below the median of $2.00 for responses models. It ranks 12 out of 171 responses models by input cost, making it cheaper than 91% of models in this category. For output, it costs $1.20 per 1M tokens compared to the median of $11.00.

### What makes gpt-5.6-luna different from other Github Copilot models?

Among Github Copilot's 13 responses models, gpt-5.6-luna ranks 2 by input cost.

### What are the best alternatives to gpt-5.6-luna?

The most comparable responses models to gpt-5.6-luna are: gpt-5.1-codex-mini from Azure ($0.25/1M input tokens); gpt-5.1-codex-mini-2025-11-13 from Azure ($0.25/1M input tokens); gpt-5.1-codex-mini from OpenAI ($0.25/1M input tokens); openai.gpt-5.6-luna from Bedrock Mantle ($0.22/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.

### How do I calculate gpt-5.6-luna costs?

gpt-5.6-luna is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.20 and generating 1M output tokens costs $1.20.

## Related Resources

- [Model library](https://www.getmaxim.ai/bifrost/model-library.md)
- [LLM cost calculator](https://www.getmaxim.ai/bifrost/llm-cost-calculator.md)
- [Docs: Bifrost docs](https://docs.getbifrost.ai)
- [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost)
- [Pricing: Bifrost pricing](https://www.getmaxim.ai/pricing.md)
- [Enterprise: Bifrost enterprise](https://www.getmaxim.ai/enterprise)
- [Book a Demo: Bifrost demo](https://www.getmaxim.ai/book-a-demo)
- [Resources: Bifrost resources](https://www.getmaxim.ai/resources.md)

---

*This is a markdown version of [https://www.getmaxim.ai/bifrost/model-library/compare/github_copilot/gpt-5.6-luna](https://www.getmaxim.ai/bifrost/model-library/compare/github_copilot/gpt-5.6-luna) for AI/LLM consumption.*