openai is cleaning up its ai lineup
sam altman just dropped openai's roadmap for gpt-4.5 and gpt-5. gpt-4.5, aka orion, is the last model without chain-of-thought reasoning. gpt-5 will bundle openai’s best tech, including o3. free users get unlimited gpt-5 at the base level, while plus and pro subscribers get smarter versions. altman admits openai’s product lineup got messy—they’re simplifying. no release dates yet, but big changes are coming.