GPT-5.6 Luna vs GPT-5.6 Sol

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

	GPT-5.6 Luna	GPT-5.6 Sol
Provider	OpenAI	OpenAI
Pricing	$20–120/mo	$120–600/mo
Quality	8.4/10	9.7/10
Speed	9.5/10	8.2/10
Ease of use	8.5/10	8/10
Value	8/10	3/10
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	+ Top agentic coding + Strong reasoning + GA status
Cons	− Weaker than flagships on hard reasoning	− Premium pricing − Cloud only

GPT-5.6 Luna

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

OpenAI flagship (GA since July 9, 2026): agentic coding leader, 88.8% on Terminal-Bench 2.1.