Grok 4.5 vs GLM 4.5 Air
xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
No captured outputs for these models yet.
Frequently Asked Questions: Grok 4.5 vs GLM 4.5 Air▼
Which is better, Grok 4.5 or GLM 4.5 Air?
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Both Grok 4.5 and GLM 4.5 Air are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Which is cheaper, Grok 4.5 or GLM 4.5 Air?
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GLM 4.5 Air has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. GLM 4.5 Air: $0.13 input / $0.85 output.
Which has a larger context window, Grok 4.5 or GLM 4.5 Air?
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Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs GLM 4.5 Air at 131K tokens.
Do both Grok 4.5 and GLM 4.5 Air support vision?
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Grok 4.5 supports vision/image input, but GLM 4.5 Air does not.
What are the key differences between Grok 4.5 and GLM 4.5 Air?
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Key differences: GLM 4.5 Air is significantly cheaper; only Grok 4.5 supports vision input. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Grok 4.5 and GLM 4.5 Air for free on idapt.app to see which performs better for your specific needs.