GPT 5.4 Nano vs GLM 5.2
Ultra-lightweight GPT-5.4 variant built for speed-critical, high-volume tasks.
Z.ai's frontier reasoning model for long-context agents and software engineering.
No captured outputs for these models yet.
Frequently Asked Questions: GPT 5.4 Nano vs GLM 5.2▼
Which is better, GPT 5.4 Nano or GLM 5.2?
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Based on the Capability Index, GLM 5.2 scores higher (83.4 vs 78.7). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, GPT 5.4 Nano or GLM 5.2?
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GPT 5.4 Nano has a lower blended cost. GPT 5.4 Nano: $0.20 input / $1.25 output. GLM 5.2: $1.40 input / $4.40 output.
Which has a larger context window, GPT 5.4 Nano or GLM 5.2?
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GPT 5.4 Nano has a larger context window: GPT 5.4 Nano supports 400K tokens vs GLM 5.2 at 262K tokens.
Do both GPT 5.4 Nano and GLM 5.2 support vision?
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GPT 5.4 Nano supports vision/image input, but GLM 5.2 does not.
What are the key differences between GPT 5.4 Nano and GLM 5.2?
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Key differences: GPT 5.4 Nano is significantly cheaper; only GPT 5.4 Nano 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 GPT 5.4 Nano and GLM 5.2 for free on idapt.app to see which performs better for your specific needs.