Claude Opus 4.8 vs GPT-5.5

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

	Claude Opus 4.8	GPT-5.5
Provider	Anthropic	OpenAI
Pricing	$150–700/mo	$80–400/mo
Quality	9.8/10	9.1/10
Speed	7.8/10	8.4/10
Ease of use	8/10	8/10
Value	2/10	5/10
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	+ Stable fallback + Cheaper than 5.6 + Proven quality
Cons	− Most expensive tier − Cloud only	− No longer the top of the lineup

Claude Opus 4.8

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

Previous OpenAI flagship — stable fallback, cheaper than GPT-5.6.