GPT-5.6 Luna vs GPT-5.6 Terra

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

	GPT-5.6 Luna	GPT-5.6 Terra
Provider	OpenAI	OpenAI
Pricing	$20–120/mo	$60–300/mo
Quality	8.4/10	9.2/10
Speed	9.5/10	8.6/10
Ease of use	8.5/10	8.2/10
Value	8/10	5/10
Context	256K	1000K
Tasks	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search
Pros	+ High speed + Low cost + Good for high-volume tasks	+ Price/quality balance + Production-ready + Cheaper than Sol
Cons	− Weaker than flagships on hard reasoning	− Weaker than Sol on hard agentic tasks

GPT-5.6 Luna

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

Mid-tier GPT-5.6: price/quality balance, successor to GPT-5 Standard.