{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2024-02-15-sora/","md":"https://postcutoff.com/e/2024-02-15-sora/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2024-02-15-sora","date":"2024-02-15","date_precision":"day","short_title":"OpenAI previews Sora, a text-to-video 'world simulator'","deck":null,"takeaway":"OpenAI previewed Sora, a diffusion-transformer model generating up to a minute of high-fidelity video from text, framing video generation as a path toward general-purpose simulators of the physical world.","category":"media-generation","category_label":"Media generation","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Sora (OpenAI)","url":"https://openai.com/index/sora/","type":"official","group":"primary","domain":"openai.com"},{"n":2,"title":"Video generation models as world simulators (OpenAI technical report)","url":"https://openai.com/index/video-generation-models-as-world-simulators/","type":"paper","group":"primary","domain":"openai.com"}],"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["OpenAI"],"title":"OpenAI previews Sora, a text-to-video 'world simulator'","summary":"OpenAI previewed Sora, a diffusion-transformer model generating up to a minute of high-fidelity video from text, framing video generation as a path toward general-purpose simulators of the physical world.","key_facts":["Previewed 15 February 2024 (red-teamers and selected artists only)","Generated videos up to one minute long","Diffusion transformer operating on spacetime patches","Publicly released to ChatGPT Plus/Pro users on 9 December 2024","Succeeded by Sora 2 in September 2025"],"key_numbers":[],"tags":["text-to-video","diffusion-transformer","world-models"],"science":null,"body_md":"## What happened\n\nOpenAI released sample videos showing a dramatic leap in coherence, length and realism over previous text-to-video systems.\n\n## Why it matters\n\nReset expectations for AI video overnight and triggered a video-generation race (Veo, Kling, Runway Gen-3).","disputed":[],"related":[{"id":"2025-09-30-sora-2","url":"https://postcutoff.com/e/2025-09-30-sora-2/","date":"2025-09-30","date_precision":"day","short_title":"OpenAI launches Sora 2 and the Sora social app","deck":null,"takeaway":"Turned AI video into a mass social medium and intensified debates about deepfakes, likeness rights and copyright.","category":"media-generation","category_label":"Media generation","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":2,"official":2,"filed":"2026-09-29","updated":"2026-10-04","orgs":["OpenAI"]},{"id":"2025-05-20-veo-3","url":"https://postcutoff.com/e/2025-05-20-veo-3/","date":"2025-05-20","date_precision":"day","short_title":"Google's Veo 3 generates video with native audio","deck":null,"takeaway":"Crossed the uncanny valley for short AI video with dialogue, intensifying concerns about synthetic media.","category":"media-generation","category_label":"Media generation","importance":4,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":2,"official":1,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind"]}],"people":[],"posts":[],"videos":[{"id":"will-smith-eating-spaghetti-2023-vs-2024","title":"Will Smith Eating Spaghetti AI Video - (2023 vs 2024)","url":"https://postcutoff.com/v/will-smith-eating-spaghetti-2023-vs-2024/"},{"id":"washed-out-the-hardest-part-sora","title":"Washed Out - The Hardest Part (Official Video)","url":"https://postcutoff.com/v/washed-out-the-hardest-part-sora/"},{"id":"shy-kids-air-head-sora","title":"air head · Made by shy kids with Sora","url":"https://postcutoff.com/v/shy-kids-air-head-sora/"},{"id":"openai-critterz-remastered-with-sora","title":"匚尺丨ㄒㄒ乇尺乙 — REMASTERED with Sora","url":"https://postcutoff.com/v/openai-critterz-remastered-with-sora/"}],"models":[],"changes":[{"date":"2026-09-29","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-09-29","run":null,"sources_read":null,"updated":"2026-09-29","human_review":null,"version":{"date":"2026-10-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":null,"in_training_data":true},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":null,"in_training_data":true},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":null,"in_training_data":true},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":null,"in_training_data":true}],"short_url":"https://postcutoff.com/s/openai-previews-sora"}