Compare GLM 4.7 Flash by Zhipu AI against Grok 4.20 Beta by xAI, context windows of 200K vs 2.0M, tested across 53 shared challenges. Updated April 2026.
GLM 4.7 Flash and Grok 4.20 Beta are both competitive models. GLM 4.7 Flash costs $0.07/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 200K vs 2000K tokens. Compare their real outputs side by side below.
GLM 4.7 Flash is made by zhipu while Grok 4.20 Beta is from xai. GLM 4.7 Flash has a 200K token context window compared to Grok 4.20 Beta's 2000K. On pricing, GLM 4.7 Flash costs $0.07/M input tokens vs $2/M for Grok 4.20 Beta.
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.
GLM 4.7 Flash is 15x cheaper per token — worth considering if cost matters.
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare GLM 4.7 Flash by Zhipu AI against Grok 4.20 Beta by xAI, context windows of 200K vs 2.0M, tested across 53 shared challenges. Updated April 2026.
GLM 4.7 Flash and Grok 4.20 Beta are both competitive models. GLM 4.7 Flash costs $0.07/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 200K vs 2000K tokens. Compare their real outputs side by side below.
GLM 4.7 Flash is made by zhipu while Grok 4.20 Beta is from xai. GLM 4.7 Flash has a 200K token context window compared to Grok 4.20 Beta's 2000K. On pricing, GLM 4.7 Flash costs $0.07/M input tokens vs $2/M for Grok 4.20 Beta.
No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.
GLM 4.7 Flash is 15x cheaper per token — worth considering if cost matters.
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

48 fights queued
36+ more head-to-head results. Free. Not a trick.
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48 fights queued
36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy