---
title: "gpt-5.1-chat-latest - Model Details & Comparison"
description: "gpt-5.1-chat-latest from OpenAI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-5.1-chat-latest"
markdown: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-5.1-chat-latest.md"
---

# gpt-5.1-chat-latest - Model Details & Comparison

> gpt-5.1-chat-latest from OpenAI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

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

## About gpt-5.1-chat-latest

gpt-5.1-chat-latest is a chat model from OpenAI, one of 91 chat models they offer. It is priced at $1.25 per 1M input tokens and $10.00 per 1M output tokens, ranking 1905 out of 2669 chat models by cost and cheaper than 27% of models in this category. gpt-5.1-chat-latest supports vision, reasoning, web search, prompt caching, structured output — one of only 2 chat models with this combination. It accepts up to 128K input tokens.

## Specifications

- **OpenAI Provider.**
- **Chat Mode.**
- **128,000 Max Input Tokens.**
- **16,384 Max Output Tokens.**
- **16,384 Max Tokens.**
- **$1.25 / 1M tokens Input Price.**
- **$10.00 / 1M tokens Output Price.**

## Capabilities

gpt-5.1-chat-latest supports: Vision, Reasoning, Web Search, Prompt Caching, System Messages, Response Schema, PDF Input.

## gpt-5.1-chat-latest Pricing Overview

At $1.25 per 1M input tokens and $10.00 per 1M output tokens, gpt-5.1-chat-latest ranks 1905 out of 2669 chat models by input cost. It is more expensive compared to the median of $0.50 for chat models, and is cheaper than 27% of models in this category.

gpt-5.1-chat-latest is one of 91 OpenAI chat models, one of only 2 chat models combining prompt caching, reasoning, structured output, vision, web search.

## Models to Compare

Alternatives to gpt-5.1-chat-latest with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| gpt-5.6-luna | Azure | $1.10 | $6.60 |
| gemini-2.5-pro | Vertex AI | $1.25 | $10.00 |
| gemini-3.5-flash | Vertex AI | $1.50 | $9.00 |
| gemini-3.6-flash | Vertex AI | $1.50 | $7.50 |
| gemini-flash-latest | Google Gemini | $1.50 | $9.00 |

- [Compare gpt-5.6-luna](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/azure/gpt-5.6-luna.md)
- [Compare gemini-2.5-pro](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-2.5-pro.md)
- [Compare gemini-3.5-flash](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3.5-flash.md)
- [Compare gemini-3.6-flash](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3.6-flash.md)
- [Compare gemini-flash-latest](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/gemini/gemini-flash-latest.md)

## Related Resources

- [Calculate gpt-5.1-chat-latest costs](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openai/model/gpt-5.1-chat-latest.md)
- [Check OpenAI status](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/provider-status/openai.md)
- [All OpenAI pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openai.md)

## FAQ

### Is gpt-5.1-chat-latest cheaper than gpt-5.6-luna?

No. gpt-5.1-chat-latest costs $1.25 per 1M input tokens while gpt-5.6-luna costs $1.10 per 1M input tokens, making gpt-5.6-luna 12% more affordable for input. However, gpt-5.1-chat-latest may offer different capabilities or performance characteristics that justify the price difference.

### How does gpt-5.1-chat-latest pricing compare to the average chat model?

gpt-5.1-chat-latest input pricing is $1.25 per 1M tokens, which is 150% above the median of $0.50 for chat models. It ranks 1905 out of 2669 chat models by input cost, making it cheaper than 27% of models in this category. For output, it costs $10.00 per 1M tokens compared to the median of $1.44.

### What makes gpt-5.1-chat-latest different from other OpenAI models?

Among OpenAI's 91 chat models, gpt-5.1-chat-latest ranks 36 by input cost. Its combination of prompt caching, reasoning, structured output, vision, web search is shared by only 1 other chat model.

### What are the best alternatives to gpt-5.1-chat-latest?

The most comparable chat models to gpt-5.1-chat-latest are: gpt-5.6-luna from Azure ($1.10/1M input tokens); gemini-2.5-pro from Vertex AI ($1.25/1M input tokens); gemini-3.5-flash from Vertex AI ($1.50/1M input tokens); gemini-3.6-flash from Vertex AI ($1.50/1M 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 check if OpenAI is down?

You can monitor OpenAI service health in real time on the Bifrost OpenAI Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.

### How do I calculate gpt-5.1-chat-latest costs?

gpt-5.1-chat-latest 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 $1.25 and generating 1M output tokens costs $10.00.

## Related Resources

- [OpenAI models](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/provider/openai.md)
- [Model library](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library.md)
- [LLM cost calculator](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator.md)
- [Docs: Bifrost docs](https://docs.getbifrost.ai)
- [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost)
- [Pricing: Bifrost pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/pricing.md)
- [Enterprise: Bifrost enterprise](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/enterprise)
- [Book a Demo: Bifrost demo](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/book-a-demo)
- [Resources: Bifrost resources](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources.md)

---

*This is a markdown version of [https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-5.1-chat-latest](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-5.1-chat-latest) for AI/LLM consumption.*