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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Sora
A
Suno
S
HeyGen
S
Udio
A
TaglineOpenAI's video model. Long clips, cinematic quality.Prompt to full song with vocals, instruments, the works.AI avatar videos. Record once, speak any language.Suno's main rival. Often better on instrumental nuance.
CategoryVideoAudioVideoAudio
PricingIncluded with ChatGPT Plus/ProFree + $10/mo + $30/moFree + $24-$65/moFree + $10-$30/mo
Best forChatGPT subscribers experimenting with cinematic shots.Jingles, intros, demos, sketches, personal use.Course creators, multilingual marketers, anyone scaling video content.Musicians comparing AI outputs. Anyone who didn't click with Suno.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Copyright gray zone
  • Audio quality behind studio
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Same copyright gray zone as Suno
  • Ecosystem smaller
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier in its category. The first AI music tool I'd actually listen to.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier. Genuinely different vibe from Suno — worth trying both for a month.
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