GPT 5.6 Luna vs GLM 4.6
OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.
No captured outputs for these models yet.
Frequently Asked Questions: GPT 5.6 Luna vs GLM 4.6▼
Which is better, GPT 5.6 Luna or GLM 4.6?
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Both GPT 5.6 Luna and GLM 4.6 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, GPT 5.6 Luna or GLM 4.6?
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GLM 4.6 has a lower blended cost. GPT 5.6 Luna: $1.00 input / $6.00 output. GLM 4.6: $0.43 input / $1.74 output.
Which has a larger context window, GPT 5.6 Luna or GLM 4.6?
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GPT 5.6 Luna has a larger context window: GPT 5.6 Luna supports 1.1M tokens vs GLM 4.6 at 203K tokens.
Do both GPT 5.6 Luna and GLM 4.6 support vision?
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GPT 5.6 Luna supports vision/image input, but GLM 4.6 does not.
What are the key differences between GPT 5.6 Luna and GLM 4.6?
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Key differences: GLM 4.6 is significantly cheaper; only GPT 5.6 Luna 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 5.6 Luna and GLM 4.6 for free on idapt.app to see which performs better for your specific needs.