AI Pricing

Illustration of falling AI model prices with OpenAI and Anthropic racing to cut costs

AI Price War: OpenAI and Anthropic Slash Model Prices as Replit Cools on Open Source

The AI price war just went from background noise to front-page strategy. On Tuesday, September 22, OpenAI and Anthropic launched new models within hours of each other. Both launches centered on the same selling point: cheaper AI. OpenAI priced its GPT-6 Sol and GPT-6 Luna models 50% below the promotional API rates of the GPT-5.6 models they replace. Anthropic said its Claude Opus 5.5 costs about 40% less to run than Opus 5 on typical workloads. ...

The AI Price War: Claude Opus 5.5 vs GPT-6 Sol and Luna

On September 22, Anthropic launched Claude Opus 5.5 at roughly 40% lower cost than Opus 5, and about 90 minutes later OpenAI answered with GPT-6 Sol and Luna at half of last generation’s prices. Full breakdown in the slides above. Sources: Simon Willison (simonwillison.net), AI Explainer India, Intelligibberish, AI Briefing Room citing Reuters — September 22–26, 2026.