Name: GLM 5.3 Prime
Price: 2.8 USD
Author: z-ai

Question 1

What is GLM 5.3 Prime?

Accepted Answer

GLM 5.3 Prime is a proprietary text AI model by z-ai, released in September 2026.  Context window: 1M tokens.

Question 2

How much does GLM 5.3 Prime cost?

Accepted Answer

GLM 5.3 Prime costs $2.80 per million input tokens and $8.80 per million output tokens. For a typical conversation (~2,000 tokens), that's approximately $0.014 per message.

Question 3

What benchmarks has GLM 5.3 Prime been tested on?

Accepted Answer

GLM 5.3 Prime has not been benchmarked yet. Scores are added as benchmarks are published.

Question 4

Is GLM 5.3 Prime open source?

Accepted Answer

No, GLM 5.3 Prime is a proprietary model by z-ai.

Question 5

How does GLM 5.3 Prime compare to GPT-4o Audio?

Accepted Answer

GLM 5.3 Prime has an average score of 0.0 while GPT-4o Audio scores 0.0. GPT-4o Audio slightly outperforms GLM 5.3 Prime overall. GLM 5.3 Prime costs $2.80/1M input vs GPT-4o Audio at $2.50/1M input. See full comparison →

GLM 5.3 Prime

Frequently Asked Questions

Related Models

Benchmarks

Related Pages