Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war
New model releases from OpenAI, Anthropic, xAI, and Xiaomi trigger an AI price war, with GPT-6 Luna at half its predecessor's cost.
“It's hard to overstate how competitive this pricing is.”
Anthropic released Claude Opus 5.5 and OpenAI released GPT-6 Sol and Luna on the same day, following Grok 4.7 and MiMo v2.6, with GPT-6 Luna priced at $0.10/$0.50 per million tokens—half its predecessor. The aggressive price cuts across frontier and cheap models signal an intensifying price war that reshapes the economics of building AI applications.