GPT-5.5 vs Grok 4.5

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

	GPT-5.5	Grok 4.5
Provider	OpenAI	xAI
Pricing	$80–400/mo	$50–300/mo
Quality	9.1/10	9/10
Speed	8.4/10	8.5/10
Ease of use	8/10	7.8/10
Value	5/10	5/10
Context	256K	256K
Tasks	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search
Pros	+ Stable fallback + Cheaper than 5.6 + Proven quality	+ Strong Big Tech alternative + Current lineup
Cons	− No longer the top of the lineup	− Fewer ecosystem integrations

GPT-5.5

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

xAI model — alternative in the July 2026 flagship list.