---
title: "gpt-5.5 - Model Details & Comparison"
description: "gpt-5.5 from Chatgpt: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://www.getmaxim.ai/bifrost/model-library/compare/chatgpt/gpt-5.5"
markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/chatgpt/gpt-5.5.md"
---

# gpt-5.5 - Model Details & Comparison

> gpt-5.5 from Chatgpt: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

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

## About gpt-5.5

gpt-5.5 is a responses model from Chatgpt. gpt-5.5 supports vision, function calling, structured output. Its 1,050K-token context window is in the top 28% among responses models.

## Specifications

- **Chatgpt Provider.**
- **Responses Mode.**
- **1,050,000 Max Input Tokens.**
- **128,000 Max Output Tokens.**
- **128,000 Max Tokens.**

## Capabilities

gpt-5.5 supports: Function Calling, Vision, Parallel Function Calling, Response Schema.

## gpt-5.5 Pricing Overview

gpt-5.5 is a responses model from Chatgpt, with support for vision, function calling, structured output. its 1,050K-token context window places it in the top 28% of responses models.

## Models to Compare

Alternatives to gpt-5.5 with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| codex-mini | Azure | $1.50 | $6.00 |
| gpt-5.1-codex | Azure | $1.38 | $11.00 |
| gpt-5.1-codex-mini | Azure | $0.28 | $2.20 |
| gpt-5.1-codex-2025-11-13 | Azure | $1.25 | $10.00 |
| gpt-5.1-codex-mini-2025-11-13 | Azure | $0.25 | $2.00 |

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

## Related Resources

- [Calculate gpt-5.5 costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/chatgpt/model/gpt-5.5.md)
- [All Chatgpt pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/chatgpt.md)

## FAQ

### What are the best alternatives to gpt-5.5?

The most comparable responses models to gpt-5.5 are: codex-mini from Azure ($1.50/1M input tokens); gpt-5.1-codex from Azure ($1.38/1M input tokens); gpt-5.1-codex-mini from Azure ($0.28/1M input tokens); gpt-5.1-codex-2025-11-13 from Azure ($1.25/1M 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 large is gpt-5.5's context window?

gpt-5.5 supports up to 1,050,000 input tokens, placing it in the top 28% of responses models by context window size (rank 5 of 89). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories.

### How do I calculate gpt-5.5 costs?

gpt-5.5 is priced based on usage. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected usage volume and the calculator will show the total cost breakdown.

## Related Resources

- [Chatgpt models](https://www.getmaxim.ai/bifrost/model-library/provider/chatgpt.md)
- [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)
- [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/bifrost/resources.md)

---

*This is a markdown version of [https://www.getmaxim.ai/bifrost/model-library/compare/chatgpt/gpt-5.5](https://www.getmaxim.ai/bifrost/model-library/compare/chatgpt/gpt-5.5) for AI/LLM consumption.*