What is the difference between Claude Sonnet 4 and GLM 5 Turbo?

Claude Sonnet 4 is developed by Anthropic while GLM 5 Turbo is developed by Z.ai. Claude Sonnet 4 has a 200K token context window vs GLM 5 Turbo's 203K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 4 or GLM 5 Turbo?

It depends on your use case. Claude Sonnet 4 and GLM 5 Turbo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 4 cost compared to GLM 5 Turbo?

Claude Sonnet 4 costs $3/M input tokens and GLM 5 Turbo costs $0.96/M input tokens. GLM 5 Turbo is $2.04/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 Claude Sonnet 4 and GLM 5 Turbo on Rival?

This page shows a side-by-side comparison of Claude Sonnet 4 and GLM 5 Turbo 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 Mar 2026

Claude Sonnet 4vsGLM 5 Turbo

GLM 5 Turbo is cheaper than Claude Sonnet 4 at $0.96/M vs $3/M input tokens.

Claude Sonnet 4 and GLM 5 Turbo compared across 53 shared prompts
Spec	Claude Sonnet 4	GLM 5 Turbo
Input price	$3/M tokens	$0.96/M tokens
Output price	$15/M tokens	$3.2/M tokens
Context window	200K tokens	203K tokens
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	May 2025	Mar 2026