GPT-4

OpenAI · · Multimodal

OpenAI released GPT-4, the first major model to accept images as input alongside text, demonstrating human-level performance on professional benchmarks including the bar exam.

Why it matters

Established the new performance ceiling for commercial LLMs. Introduced multimodal input. Every frontier model after GPT-4 was expected to be multimodal. The benchmark arms race intensified.

This is LLM World's historical reading, not a claim by OpenAI. The facts above and the sources below are what it rests on.

The model record for GPT-4 →

Model line behind it: GPT.

Sources

Record status: partly verified · confidence 85/100

OpenAI's own announcement is the primary source and carries no date at all — the archived capture has none. The Verge's launch-day report states it in words ("Mar 14, 2023"), so the date is corroborated rather than inferred. Not verified: that would require the lab's own page to state it.