OpenAI Model Catalog Shows GPT-6 Astra, Not Rumored GPT-6 Sol or Luna, as Developers Watch for Lower-Cost Tiers

OpenAI’s public model catalog currently lists GPT-6 Astra as the only GPT-6 model, while the rumored GPT-6 Sol and GPT-6 Luna names do not appear in the documented API lineup. The gap matters because OpenAI’s existing GPT-5.6 family already uses Sol, Terra and Luna as price-performance tiers, creating strong expectations that a similar GPT-6 ladder could follow.