Claude Opus 4.8 vs GPT-5.6 Luna

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

	Claude Opus 4.8	GPT-5.6 Luna
Provider	Anthropic	OpenAI
Pricing	$150–700/mo	$20–120/mo
Quality	9.8/10	8.4/10
Speed	7.8/10	9.5/10
Ease of use	8/10	8.5/10
Value	2/10	8/10
Context	1000K	256K
Tasks	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search
Pros	+ Top code quality + 1M context + Strong judgment	+ High speed + Low cost + Good for high-volume tasks
Cons	− Most expensive tier − Cloud only	− Weaker than flagships on hard reasoning

Claude Opus 4.8

Anthropic flagship: best for deep refactoring and judgment; ~4× fewer missed code defects.

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