GPT-5.6 Sol vs GPT-5.6 Terra

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

	GPT-5.6 Sol	GPT-5.6 Terra
Provider	OpenAI	OpenAI
Pricing	$120–600/mo	$60–300/mo
Quality	9.7/10	9.2/10
Speed	8.2/10	8.6/10
Ease of use	8/10	8.2/10
Value	3/10	5/10
Context	1000K	1000K
Tasks	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search	Text Generation, Chatbots, Coding, Data Analysis, Translation, RAG / Search
Pros	+ Top agentic coding + Strong reasoning + GA status	+ Price/quality balance + Production-ready + Cheaper than Sol
Cons	− Premium pricing − Cloud only	− Weaker than Sol on hard agentic tasks

GPT-5.6 Sol

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

Mid-tier GPT-5.6: price/quality balance, successor to GPT-5 Standard.