Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war

A new price war is emerging with models like Claude Opus 5.5, GPT-6 Sol, and GPT-6 Luna. GPT-6 Luna is priced at $0.10/M for input and $0.50/M for output, while GPT-6 Sol costs $2/M for input and $10/M for output. Claude Opus 5.5 is more expensive at $4/M for input and $20/M for output. GPT-6 models are half the price of the promotional pricing for GPT-5.6 models, which have a scheduled 25% price increase for November. GPT-6 Luna is being used for the Datasette Agent demo, demonstrating speed and competence.

This report uniquely details the specific pricing tiers for new models like GPT-6 Luna and Claude Opus 5.5, unlike general announcements.