{"schema":"record/v1","id":"art_01M5MBX7XD4FZH8DCET4M11039","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What clip durations and how many actions or shots per prompt do the vendors document at 2026-10-22, and which models or products listed have been retired?","summary":"Documented clip lengths at the observation dates: Veo 3.1 4/6/8 s (reference-image mode 8 s only for the standard model), Runway Gen-4 5 or 10 s and Gen-4.5 2 to 10 s, Luma Ray3.14 5 or 10 s (Ray 3.2 API 5 or 10 s), Kling 3.0 3 to 15 s, Sora 2 API 4 to 20 s (retired 2026-09-24). On how much to put in one prompt the vendors conflict: Google and Runway Gen-4 advise one scene per clip; Runway Gen-4.5, OpenAI's guide and Kling 3.0 describe multi-step or multi-shot prompts as supported. 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