I Used an AI Agent to Make a Product Video. The Cost Was $0, But There's a Catch.

Short summary

Author tested OpenMontage, an open-source agentic video system, to produce a 75-second explainer video and discovered marginal costs were pennies but setup required a $10 Google Cloud prepay. The AI agent orchestrated a complex production pipeline end-to-end but hit a quality ceiling—output felt polished in vibe but amateurish in execution, with sync issues and weak explanatory visuals. Key insight: agents excel at pipeline orchestration and iteration but lack human judgment for professional-grade results.

• •Tested OpenMontage to produce explainer video; marginal cost near $0 but $10+ setup friction required
• •AI agent successfully orchestrated research → scripting → asset generation → editing end-to-end
• •Output hit quality plateau: strong aesthetics but poor technical depth and sync issues; agents need human oversight for polish

Generated with AI, which can make mistakes.