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Grok 4 vs GLM-5

A detailed comparison of Grok 4 (xAI) and GLM-5 (Zhipu AI) across pricing, performance, and features.

Pricing Comparison

MetricGrok 4GLM-5Difference
Input / 1M tokens$3.00$1.00-67%
Output / 1M tokens$15.00$3.20-79%
Context window128K200K
Max output16.384K128K

Benchmark Comparison

BenchmarkGrok 4GLM-5
MMLU-Pro86%70.4%
HumanEval93%91%
GPQA72%72%

Capabilities

CapabilityGrok 4GLM-5
code
reasoning
text
tool-use
vision
web-search

Grok 4 Strengths

  • Built-in web search and real-time data
  • Strong reasoning
  • $25 free credits for new users

Grok 4 Weaknesses

  • Premium pricing for its benchmark tier
  • Additional charges for tool invocations ($2.50-$5/1K calls)
  • Smaller ecosystem than OpenAI/Anthropic

GLM-5 Strengths

  • Open-weight (MIT license) — self-hostable
  • 77.8% SWE-Bench Verified — top-tier coding
  • 128K max output — huge generation window

GLM-5 Weaknesses

  • MMLU-Pro lags behind Western flagships
  • 744B parameters — heavy to self-host
  • China-based — availability concerns

Quick Verdict

Best value: GLM-5 is the more affordable option at $1/$3.2 per 1M tokens.

Higher benchmarks: Grok 4 scores higher on average across available benchmarks (83.7% avg).

Larger context: GLM-5 supports 200K tokens.

Choose GLM-5 if cost matters most. Choose Grok 4 if you need the best possible quality for complex tasks.

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