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GLM-5.2 vs Grok 3

Grok 3 leads in 4 of 8 categories

Arena ELO

Grok 3

Cheaper

Tie

Faster

Grok 3

Detailed Comparison

CategoryGLM-5.2Grok 3
ProviderZ.ai xAI
Context Window128K 131K WIN
Input Price ($/1M)$3 $3
Output Price ($/1M)$80 $15 WIN
Arena ELON/A 1391 WIN
CodingN/A unknown
ReasoningN/A 93.3% AIME 2025
Speed (tokens/sec)N/A ~55 t/s WIN
Open SourceYes No

Frequently Asked Questions

Which is cheaper, GLM-5.2 or Grok 3?

Grok 3 is approximately 78% cheaper than GLM-5.2 per million tokens.

Which is better for coding, GLM-5.2 or Grok 3?

GLM-5.2 scores N/A on coding benchmarks, while Grok 3 scores unknown.

Which has a larger context window?

GLM-5.2 supports 128K context, while Grok 3 supports 131K.

Is GLM-5.2 or Grok 3 open source?

GLM-5.2 is open source. Grok 3 is proprietary.