Thumbgen – AI-generated thumbnails in seconds

Show HN: Thumbgen – AI-generated thumbnails in seconds

Operating in show hn launch, Thumbgen – AI-generated thumbnails in seconds operates.

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We created Thumbgen, a web-based platform that uses AI to generate high-performance thumbnails for video content.The idea started from a simple observation: thumbnails directly influence click-through rates, yet most creators spend disproportionate time designing them manually or rely on generic tools.Thumbgen uses prompt-based image generation models (via OpenAI and Replicate) combined with template intelligence and real-time feedback to craft thumbnails optimized for visibility and engagement. The system is designed for creators who value speed, precision, and visual consistency.Built with Next.js and Tailwind CSS, Thumbgen prioritizes performance and simplicity. There is no required desig

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Website: thumbgen.app