GLM 5.2 vs Claude Sonnet 4
Z.ai's frontier reasoning model for long-context agents and software engineering.
Significantly enhanced over Sonnet 3.7 in coding and reasoning tasks.
No captured outputs for these models yet.
Frequently Asked Questions: GLM 5.2 vs Claude Sonnet 4▼
Which is better, GLM 5.2 or Claude Sonnet 4?
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Based on the Capability Index, GLM 5.2 scores higher (83.4 vs 74.7). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, GLM 5.2 or Claude Sonnet 4?
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GLM 5.2 has a lower blended cost. GLM 5.2: $1.40 input / $4.40 output. Claude Sonnet 4: $3.00 input / $15.00 output.
Which has a larger context window, GLM 5.2 or Claude Sonnet 4?
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Claude Sonnet 4 has a larger context window: GLM 5.2 supports 262K tokens vs Claude Sonnet 4 at 1M tokens.
Do both GLM 5.2 and Claude Sonnet 4 support vision?
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Claude Sonnet 4 supports vision/image input, but GLM 5.2 does not.
What are the key differences between GLM 5.2 and Claude Sonnet 4?
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Key differences: GLM 5.2 has a notably higher capability index (8.7 point gap); GLM 5.2 is significantly cheaper; only Claude Sonnet 4 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 Claude Sonnet 4 for free on idapt.app to see which performs better for your specific needs.