GPT-5.5 vs GPT-5.6 Sol

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

	GPT-5.5	GPT-5.6 Sol
Provider	OpenAI	OpenAI
Pricing	$80–400/mo	$120–600/mo
Quality	9.1/10	9.7/10
Speed	8.4/10	8.2/10
Ease of use	8/10	8/10
Value	5/10	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	+ Stable fallback + Cheaper than 5.6 + Proven quality	+ Top agentic coding + Strong reasoning + GA status
Cons	− No longer the top of the lineup	− Premium pricing − Cloud only

GPT-5.5

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

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