GLM-5.2 vs GPT-5.6 Luna

Comparing two large language models (llm) models: features, pricing, pros and cons.

	GLM-5.2	GPT-5.6 Luna
Provider	Zhipu AI	OpenAI
Pricing	Free (open-source)	$20–120/mo
Quality	9.3/10	8.4/10
Speed	8/10	9.5/10
Ease of use	6.5/10	8.5/10
Value	9/10	8/10
Context	—	256K
Tasks	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search
Pros	+ Top open-weight for code + MIT license	+ High speed + Low cost + Good for high-volume tasks
Cons	− Limited availability − Heavy hardware	− Weaker than flagships on hard reasoning

GLM-5.2

Strongest open coding model (June 2026, MIT); top-4 on Artificial Analysis. Limited availability.

Fastest and cheapest GPT-5.6 tier for light tasks and high throughput.