GPT Models

GPT-5 GPT-4o Training GPT-4.5 User Feedback Content Influence GPT-3.5 Turbo GPT-4 Turbo Microsoft License Release Timeline Event Updates Competition Updates GPT-4.1 gpt-oss Behavioral Training of LLMs gpt-oss-120b and gpt-oss-20b AI Development GPT-5-Codex Small-Model Development Development Costs Supervision