Plan W: AI Documentary Narration

Research → narration script → voice-over → visual generation → music & captions

Time
3-6 hours / episode
Cost
Medium
Difficulty
Intermediate

Best for

For long-form educational videos on history, science or nature — AI brings the production cost down to a solo creator.

Steps

Research

30-60 min

Perplexity + ChatGPT

Search with Perplexity and cross-check sources, then have ChatGPT assemble a narrative spine with a clear arc and a timeline of verifiable facts. This step decides whether viewers trust you on the facts.

💡Keep source links for every key fact so you can re-check during editing and avoid embarrassing errors.

Narration script

1 hour

ChatGPT

Write the voice-over chapter by chapter in conversational short sentences with strong imagery, aiming for roughly 240-280 characters per minute in Chinese, and note what each section should show on screen.

💡Outline first, then expand section by section; asking for a whole film in one pass gets you a scattered structure.

Voice-over

30-45 min

ElevenLabs

Turn the script into a calm, storytelling narration; generate long episodes in segments and stitch them, so a flubbed line only needs one segment re-recorded.

💡Put pause and emphasis marks into the text — the documentary feel shows up immediately.

Visual generation

2-3 hours

海螺 Hailuo + Sora

Batch-generate atmospheric shots like historical reenactments, macro or aerial views from the shot prompts, and animate static images in Hailuo; keep real archival footage and maps for key facts.

💡Reuse a fixed 'tone + era' style prefix so the whole film looks like one piece.

Music & captions

30-45 min

Suno + editor

Generate ambient score and bed sounds in Suno, then overlay narration captions, title cards and chapter headings.

💡Keep the score around -18 to -20 dB so it never buries the narration.

Tools involved

PerplexityChatGPTElevenLabs海螺 HailuoSoraSuno

Pitfalls to avoid

Factual errors

In the knowledge niche, fabricated details are fatal — verify every key fact by hand.

Narration that reads like a textbook

Educational video should be conversational; formal writing sounds like reading aloud.

Visuals out of sync with the narration

Write the narration first and build the visuals to match it.

Related Workflows

Plan A: Voiceover / Explainers

Write script → TTS voice → visuals → edit in CapCut → publish

Time：
15-40 min / video
Cost：
Low
Difficulty：
Beginner

Plan B: Text-to-Video Storyboards (Pro)

3-layer planning → prompt engineering → consistency assets → animatic preview → shot generation → sound design → spec-driven assembly + QC gates

Time：
2-4 hours / video
Cost：
Medium-High
Difficulty：
Advanced

Plan C: AI Avatar Presenters

Pick a tool → prepare the avatar → write the script → one-click generation → post-process & publish

Time：
~20 min / video
Cost：
~$2 / video
Difficulty：
Beginner