GPT-4o System Card

OpenAI published the GPT-4o System Card on August 8, 2024, reporting 3 of 4 Preparedness categories as low risk and persuasion as borderline medium. The post says GPT-4o accepts text, audio, image, and video inputs, responds to audio in as little as 232 ms with a 320 ms average, and is 50% cheaper than GPT-4 Turbo in the API. The key issue for practitioners is voice safety: the card names unauthorized voice generation, speaker identification, and sensitive trait attribution, and says only models with post-mitigation scores at medium or below can be deployed.

Why it matters: This is not a routine post: it adds concrete preparedness ratings, 232ms voice latency, and a clear deployment threshold. HKR-H/K/R all pass, but it is a safety disclosure rather than a new model or major launch, so it lands as featured, not p1.