Problem

AI video generators can produce compelling visuals while leaving creators with a “silent problem”: sound effects, Foley, ambience, and music still have to be sourced and synchronized manually. Mirelo describes the existing workflow as a time-consuming scavenger hunt through sound libraries, often ending in a “close enough” result. That delay affects editing decisions, client feedback, approvals, and final delivery, making time the core economic pain.

The killer use case is automatically making AI-generated or otherwise silent video feel finished and convincing by adding realistic, scene-matched audio. Mirelo initially focuses on video-to-SFX, where its models interpret the action in a video and generate synchronized sound; the opportunity extends to creators, video platforms, advertising, media production, and games.

Product / Service

Mirelo develops foundational generative-audio models that generate realistic sound, speech, and music from video. Its current product centers on Mirelo SFX, which analyzes scenes and actions to create custom, synchronized effects, while related tools can extend an existing sound, generate ambient soundscapes, remove audio glitches, and produce background music. The practical benefit is a ready-mixed, pixel-aware audio track that lets creators hear and iterate on a more finished edit immediately.

The delivery model combines a web workspace, Mirelo Studio, with a self-serve developer API and integrations for tools including Adobe Premiere Pro, DaVinci Resolve, and Roblox Studio. Mirelo also offers free and paid plans, including pay-as-you-go credits; the free tier is for non-commercial use and paid plans support commercial use. The company said API usage was expected to drive most near-term revenue while Studio was being developed for broader professional creator workflows.

Market

Mirelo competes in generative audio and video-to-sound, positioned across AudioTech, SaaS, artificial intelligence, machine learning, multimedia/design software, and gaming. Its narrower specialization is synchronized sound for video, while adjacent AI music and audio-creation competitors include Suno, Udio, and Wondercraft. Direct or larger-model competition includes Sony, Tencent, Kuaishou-owned Kling AI, and ElevenLabs, alongside video-to-SFX alternatives such as PixVerse, MMAudio, ThinkSound, and Tencent Hunyuan VideoFoley.

Mirelo is not merely pre-product: it was founded in 2023, launched Mirelo SFX 1.5 and Studio in 2025, published models through fal.ai and Replicate, and by July 2026 was presenting SFX 1.6, plugins, an API, and new assistant-based workflows. It raised a $41 million seed round led by Index Ventures and Andreessen Horowitz, with reporting putting total funding at $44 million including an earlier pre-seed round. The evidence indicates a freemium and paid commercial offering with API monetization planned, but does not disclose revenue, customer counts, or usage scale, so the strongest characterization is commercially launched and well-funded, with revenue traction still undisclosed.