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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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Rows
A
HeyGen
S
Cartesia
S
Sora
A
TaglineSpreadsheets with AI + live integrations baked in.AI avatar videos. Record once, speak any language.Ultra-low-latency voice. Built for realtime agents.OpenAI's video model. Long clips, cinematic quality.
CategoryDataVideoVoiceVideo
PricingFree + $19-$89/user/moFree + $24-$65/moFree tier + usage-based APIIncluded with ChatGPT Plus/Pro
Best forOps teams, marketers, anyone building dashboards from multiple sources.Course creators, multilingual marketers, anyone scaling video content.Developers building voice agents, phone bots, interactive apps.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • < 90ms latency — the fastest in the market
  • Sonic model sounds natural
  • Developer-friendly API
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Fewer voices than ElevenLabs
  • Less consumer-facing brand
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.S-tier for realtime. If latency matters more than voice catalog, start here.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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