Hello, this is Masaki.Many people working with APIs have long believed that you should just choose the single smartest model ...

GPT-6 at Half the PriceOn September 22, 2026, OpenAI added "Sol" and "Luna" to the GPT-6 series. These models offer slightly ...

You'd be forgiven for thinking OpenAI was watching the clock. Just 90 minutes after Anthropic rolled out an upgraded Opus 5.5, OpenAI dropped GPT-6 Sol and Luna, the latest entries in a ...

Claude Opus 5.5 and GPT-6 Sol, respectively. These launches come at a time when both companies have advocated for slowing down ...

The company has also cut API prices for the new models by 50 per cent compared with promotional pricing for GPT-5.6.

OpenAI launches GPT-6 Sol and Luna with 50% lower API prices, putting cost, caching and agent economics at the center of the ...

OpenAI has announced new GPT-6 Sol and Luna models that are faster, more accurate, and 50% cheaper to use than GPT-5.6 Sol and Luna models.

OpenAI's GPT-6 Sol and Luna cut API prices 50% and beat Claude Opus 5 on AutomationBench at about 9% of its cost per task ...

OpenAI has released two new models for different needs. ChatGPT-maker OpenAI has now introduced GPT-6 Sol and GPT-6 Luna ...

OpenAI has expanded its GPT-6 lineup with two new models, Sol and Luna, offering lower-cost alternatives to its flagship ...

OpenAI has expanded its GPT-6 family with new Sol and Luna models, offering Astra-level capabilities at lower costs. Here’s ...

Anthropic’s Claude Opus 5.5 and OpenAI’s GPT-6 Sol & Luna have launched, leveraging their most powerful model at a lower ...