GLM 4.7 Flash vs Claude Opus 4

Compare GLM 4.7 Flash by Zhipu AI against Claude Opus 4 by Anthropic, context windows of 200K vs 200K, tested across 35 shared challenges. Updated April 2026.

Which is better, GLM 4.7 Flash or Claude Opus 4?

GLM 4.7 Flash and Claude Opus 4 are both competitive models. GLM 4.7 Flash costs $0.07/M input tokens vs $15/M for Claude Opus 4. Context windows: 200K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between GLM 4.7 Flash and Claude Opus 4

GLM 4.7 Flash is made by zhipu while Claude Opus 4 is from anthropic. GLM 4.7 Flash has a 200K token context window compared to Claude Opus 4's 200K. On pricing, GLM 4.7 Flash costs $0.07/M input tokens vs $15/M for Claude Opus 4.

Our Verdict
GLM 4.7 Flash
GLM 4.7 Flash
Claude Opus 4
Claude Opus 4

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

GLM 4.7 Flash is 188x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
76%

Claude Opus 4 uses 11.2x more emoji

GLM 4.7 Flash
Claude Opus 4
52%Vocabulary64%
15wSentence Length62w
0.33Hedging0.52
5.8Bold4.4
4.7Lists9.1
0.00Emoji0.11
0.68Headings1.87
0.13Transitions0.27
Based on 19 + 16 text responses
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GLM 4.7 FlashClaude Opus 4

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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