---
title: "GLM-5.3-Flash - Model Details & Comparison"
description: "GLM-5.3-Flash from Openinfer: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://www.getmaxim.ai/bifrost/model-library/compare/openinfer/glm-5.3-flash"
markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/openinfer/glm-5.3-flash.md"
---

# GLM-5.3-Flash - Model Details & Comparison

> GLM-5.3-Flash from Openinfer: 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 GLM-5.3-Flash

GLM-5.3-Flash is a chat model from Openinfer, one of 3 chat models they offer. It is priced at $0.20 per 1M input tokens and $1.56 per 1M output tokens, ranking 934 out of 3793 chat models by cost and cheaper than 75% of models in this category. GLM-5.3-Flash supports function calling, reasoning. Its 393K-token context window is in the top 31% among chat models.

## Specifications

- **Openinfer Provider.**
- **Chat Mode.**
- **393,216 Max Input Tokens.**
- **393,216 Max Output Tokens.**
- **393,216 Max Tokens.**
- **$0.20 / 1M tokens Input Price.**
- **$1.56 / 1M tokens Output Price.**

## Capabilities

GLM-5.3-Flash supports: Function Calling, Reasoning.

## GLM-5.3-Flash Pricing Overview

At $0.20 per 1M input tokens and $1.56 per 1M output tokens, GLM-5.3-Flash ranks 934 out of 3793 chat models by input cost. It is more affordable compared to the median of $0.60 for chat models, and is cheaper than 75% of models in this category.

GLM-5.3-Flash is one of 3 Openinfer chat models, with support for function calling, reasoning. its 393K-token context window places it in the top 31% of chat models.

## Models to Compare

Alternatives to GLM-5.3-Flash with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| gpt-5.4-nano | Azure | $0.20 | $1.25 |
| gpt-5.4-nano-2026-03-17 | Azure | $0.20 | $1.25 |
| gpt-5.6-luna | Azure | $0.20 | $1.20 |
| gpt-5.6-luna-2026-07-09 | Azure | $0.20 | $1.20 |
| deepseek-v4-flash | Azure | $0.19 | $0.51 |

- [Compare gpt-5.4-nano](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.4-nano.md)
- [Compare gpt-5.4-nano-2026-03-17](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.4-nano-2026-03-17.md)
- [Compare gpt-5.6-luna](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.6-luna.md)
- [Compare gpt-5.6-luna-2026-07-09](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.6-luna-2026-07-09.md)
- [Compare deepseek-v4-flash](https://www.getmaxim.ai/bifrost/model-library/compare/azure/deepseek-v4-flash.md)

## Related Resources

- [Calculate GLM-5.3-Flash costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/openinfer/model/glm-5.3-flash.md)
- [All Openinfer pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/openinfer.md)

## FAQ

### Is GLM-5.3-Flash cheaper than gpt-5.4-nano?

Yes. GLM-5.3-Flash costs $0.20 per 1M input tokens compared to gpt-5.4-nano's $0.20 per 1M input tokens, making it 3% more affordable. Both are chat models and share support for vision, function calling, reasoning, web search, prompt caching, structured output.

### How does GLM-5.3-Flash pricing compare to the average chat model?

GLM-5.3-Flash input pricing is $0.20 per 1M tokens, which is 67% below the median of $0.60 for chat models. It ranks 934 out of 3793 chat models by input cost, making it cheaper than 75% of models in this category. For output, it costs $1.56 per 1M tokens compared to the median of $1.75.

### What makes GLM-5.3-Flash different from other Openinfer models?

Among Openinfer's 3 chat models, GLM-5.3-Flash ranks 1 by input cost.

### What are the best alternatives to GLM-5.3-Flash?

The most comparable chat models to GLM-5.3-Flash are: gpt-5.4-nano from Azure ($0.20/1M input tokens); gpt-5.4-nano-2026-03-17 from Azure ($0.20/1M input tokens); gpt-5.6-luna from Azure ($0.20/1M input tokens); gpt-5.6-luna-2026-07-09 from Azure ($0.20/1M 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 GLM-5.3-Flash costs?

GLM-5.3-Flash 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 $1.56.

## Related Resources

- [Openinfer models](https://www.getmaxim.ai/bifrost/model-library/provider/openinfer.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.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/openinfer/glm-5.3-flash](https://www.getmaxim.ai/bifrost/model-library/compare/openinfer/glm-5.3-flash) for AI/LLM consumption.*