GPT-2
AI Model
Historical
Historical
The 2019 model 'too dangerous to release' — then released.
You're looking at an AI model record: who built it, what it can do, and the hardware and data behind it.
GPT-2 (1.5B parameters) showed that scaling up next-token prediction produced coherent multi-paragraph text. OpenAI's staged release, citing misuse fears, started the norm-setting debate about publishing powerful models that has shaped the field since. Fully open-sourced by the end of 2019.
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Record reviewed as of 2026-01-15 — see Methodology.