Technology ❯ Artificial Intelligence ❯ OpenAI

GPT Models

GPT-5 GPT-4o Training GPT-4.5 GPT-5.1 Content Influence GPT-3.5 Turbo GPT-4 Turbo GPT-5.3-Codex Microsoft License AI Development Event Updates Competition Updates GPT-4.1 gpt-oss Behavioral Training of LLMs gpt-oss-120b and gpt-oss-20b GPT-5-Codex GPT-5.2 Release Timeline Small-Model Development Development Costs Supervision User Feedback

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