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 ...

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

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 ...

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 models.

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 ...

GPT-6 Sol will cost $2 per million input tokens and $10 per million output tokens, down 50% from GPT-5.6 Sol's promotional prices, while GPT-6 Luna will cost $0.10 per million input tokens and $0.50 ...