What is the difference between GLM 4.6 and GPT-6 Astra Pro?

GLM 4.6 is developed by Zhipu AI while GPT-6 Astra Pro is developed by OpenAI. GLM 4.6 has a 203K token context window vs GPT-6 Astra Pro's 1.1M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

Which is better, GLM 4.6 or GPT-6 Astra Pro?

It depends on your use case. GLM 4.6 and GPT-6 Astra Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.

How much does GLM 4.6 cost compared to GPT-6 Astra Pro?

GLM 4.6 costs $0.4/M input tokens and GPT-6 Astra Pro costs $10/M input tokens. GLM 4.6 is $9.60/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GLM 4.6 and GPT-6 Astra Pro on Rival?

This page shows a side-by-side comparison of GLM 4.6 and GPT-6 Astra Pro across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Sep 2026

GLM 4.6vsGPT-6 Astra Pro

GLM 4.6 is cheaper than GPT-6 Astra Pro at $0.4/M vs $10/M input tokens.

GLM 4.6 and GPT-6 Astra Pro compared across 6 shared prompts
Spec	GLM 4.6	GPT-6 Astra Pro
Input price	$0.4/M tokens	$10/M tokens
Output price	$1.75/M tokens	$50/M tokens
Context window	203K tokens	1.1M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Sep 2025	Sep 2026