CLAUDE OPUS 5.5, GPT-6 SOL, GPT-6 LUNA, AND A NEW PRICE WAR

Summary from the TLDR newsletter

Anthropic and OpenAI both released new models within an hour of each other. OpenAI's GPT-6 Sol and Luna are half the price of the promotional pricing for GPT-5.6 equivalents. Opus 5.5 is cheaper per token than Opus 5.0 and has the intelligence of Fable 5.1. It is very token efficient and works across every effort level.