Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war
TLDR ● Covered by 3 sources
Anthropic and OpenAI released new models within an hour of each other, triggering a price comparison across their offerings. The article says OpenAI’s GPT-6 Sol and GPT-6 Luna are half the price of the promotional GPT-5.6 equivalents. As a result, Anthropic’s Claude Opus 5.5 is positioned as cheaper per token, and users may see faster shifts in which model is the most cost-effective choice.
Why it matters
Anthropic and OpenAI both released new models within an hour of each other, kicking off a rapid price comparison. The issue says OpenAI’s GPT-6 Sol and Luna are “half the price” of the promotional GPT-5.6 equivalents, while Opus 5.5 is “cheaper per token” and “token efficient.”
