GLM 5.2 vs o4-mini (High)
Z.ai's frontier reasoning model for long-context agents and software engineering.
o4-mini with reasoning effort locked to high for maximum accuracy.
No captured outputs for these models yet.
Frequently Asked Questions: GLM 5.2 vs o4-mini (High)▼
Which is better, GLM 5.2 or o4-mini (High)?
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Based on the Capability Index, GLM 5.2 scores higher (83.4 vs 78.6). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, GLM 5.2 or o4-mini (High)?
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o4-mini (High) has a lower blended cost. GLM 5.2: $1.40 input / $4.40 output. o4-mini (High): $1.10 input / $4.40 output.
Which has a larger context window, GLM 5.2 or o4-mini (High)?
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GLM 5.2 has a larger context window: GLM 5.2 supports 262K tokens vs o4-mini (High) at 200K tokens.
Do both GLM 5.2 and o4-mini (High) support vision?
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o4-mini (High) supports vision/image input, but GLM 5.2 does not.
What are the key differences between GLM 5.2 and o4-mini (High)?
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Key differences: only o4-mini (High) 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 GLM 5.2 and o4-mini (High) for free on idapt.app to see which performs better for your specific needs.