Option A: Claude: splits the procedure and drafts the storyboard
Best when: One chat should produce both stages
What it does: Claude splits and drafts; the safety lead checks
Strong at: Scene split and frames stay in one conversation
Limit: The AI sets scene breaks; the safety lead must check
Free plan: Yes
Option B: ChatGPT: writes frames scene by scene
Best when: The safety lead wants to own the scene split
What it does: ChatGPT drafts per scene; the safety lead checks
Strong at: Scene order is decided before any AI is used
Limit: Three prompts need consistent style notes across scenes
Free plan: Yes
Option C: Gemini: drafts the storyboard and coverage table
Best when: You want one drafting pass with coverage shown
What it does: Gemini drafts; the safety lead checks every warning
Strong at: Storyboard and coverage table drafted in one pass
Limit: Storyboard drafting unconfirmed; compare every row with the procedure
Free plan: Yes