OpenAI Launches GPT-6 Sol and Luna Minutes After Anthropic Drops Claude Opus 5.5

60-second summary
OpenAI launches GPT‑6 Sol and Luna, slashing mid‑tier model prices by 50% on the same day Anthropic releases the lower‑cost Claude Opus 5.5, compressing their rivalry into minutes; the price war forces developers to reassess budgeting, while investors watch heightened competition drive rapid innovation and potentially reshape market share dynamics.
OpenAI cut prices 50% on its mid-tier models the same day Anthropic shipped a cheaper flagship, escalating a rivalry now measured in minutes.