Multimodal

OpenAI released omni-moderation-latest on September 26, 2024, a GPT-4o-based Moderation API model for text and image inputs that is free for all developers. It adds illicit and illicit/violent text categories, supports image moderation in 6 subcategories, and improves 42% on an internal 40-language eval, with gains in 98% of languages tested.

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.

Meta released Llama 3.1 with 405B, 70B, and 8B sizes, and the title says it adds multilingual support and long context. Only the title is available; the post does not disclose context length, languages, license terms, or benchmark results. Watch the 405B release terms and real inference cost.

OpenAI released GPT-4o mini on July 18, 2024 at $0.15 per 1M input tokens and $0.60 per 1M output tokens, replacing GPT-3.5 in ChatGPT. It supports text and vision, offers a 128K context window and 16K max output, scores 82.0% on MMLU and 87.2% on HumanEval. The key detail for builders is that its API version is the first to use instruction hierarchy against jailbreaks and prompt injection.

OpenAI says ChatGPT now supports seeing, hearing, and speaking. The post body is empty, so it does not disclose model versions, rollout timing, regional limits, pricing, or API scope. The real watchpoints are voice latency, vision limits, and access paths.