What is the difference between Claude Fable 5.1 and GLM 4.7 Flash?

Claude Fable 5.1 is developed by Anthropic while GLM 4.7 Flash is developed by Zhipu AI. Claude Fable 5.1 has a 1.0M token context window vs GLM 4.7 Flash's 200K. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, Claude Fable 5.1 or GLM 4.7 Flash?

It depends on your use case. Claude Fable 5.1 and GLM 4.7 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does Claude Fable 5.1 cost compared to GLM 4.7 Flash?

Claude Fable 5.1 costs $10/M input tokens and GLM 4.7 Flash costs $0.07/M input tokens. GLM 4.7 Flash is $9.93/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 Fable 5.1 and GLM 4.7 Flash on Rival?

This page shows a side-by-side comparison of Claude Fable 5.1 and GLM 4.7 Flash 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

Claude Fable 5.1vsGLM 4.7 Flash

GLM 4.7 Flash is cheaper than Claude Fable 5.1 at $0.07/M vs $10/M input tokens.

Claude Fable 5.1 and GLM 4.7 Flash compared across 10 shared prompts
Spec	Claude Fable 5.1	GLM 4.7 Flash
Input price	$10/M tokens	$0.07/M tokens
Output price	$50/M tokens	$0.4/M tokens
Context window	1.0M tokens	200K tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Sep 2026	Jan 2026