[AINews] OpenAI launches GPT 5.6 Sol/Terra/Luna, Codex becomes ChatGPT superapp

OpenAI has released GPT 5.6, which comes in three variants named Sol, Terra, and Luna, according to Latent Space. These different tiers likely target varying capability and cost requirements. In addition, OpenAI has integrated Codex into ChatGPT, effectively turning the chatbot into a superapp that combines natural language conversation with code generation and execution. This unification means developers and solopreneurs can now prototype and deploy AI workflows within a single chat interface, potentially simplifying the development pipeline. For those building AI-driven applications, this consolidation reduces friction between ideation, coding, and deployment, making it easier to iterate quickly. The addition of multiple model tiers also allows builders to choose the appropriate balance of performance and cost for their specific use case. While exact specifications are not detailed, the move signals a trend toward all-in-one platforms that bundle language understanding, code execution, and reasoning capabilities.