GLM 5.3 Flash vs GPT-6 Luna Pricing Comparison

Head-to-head token pricing, context window limits, and blended inference cost comparison between GLM 5.3 Flash (Zhipu AI) and GPT-6 Luna (OpenAI).

Direct Answer Summary (3:1 Blended Cost)

GLM 5.3 Flash costs 1.2x more than GPT-6 Luna on a 3:1 blended token workload. GLM 5.3 Flash has a context window of 1311k tokens, while GPT-6 Luna provides 1050k tokens.

Zhipu AI

GLM 5.3 Flash

Input / 1M
$0.1500
Output / 1M
$0.5000
3:1 Blended / 1M
$0.2375
Context Window
1311k tokens
OpenAI

GPT-6 Luna

Input / 1M
$0.1000
Output / 1M
$0.5000
3:1 Blended / 1M
$0.2000
Context Window
1050k tokens
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