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LTX

Free tier

Open Foundation Models for Video, Audio, and World Simulation

Free tier available·All audiences·Powered by LTX (proprietary models: LTX-2.5, LTX-2.3, LTX-2, LTXV; also integrates partner models: Veo 3.1, FLUX.2 Pro, Kling, Seedance, GPT Image, Nano Banana 2)·API available·Open source
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Key strengths

Open-weight video and world simulation modelsSelf-hostable and fine-tunable on own hardwareFree under $10M ARR licensingReal-time video generation capabilitySupports robotics, physical AI, medical, gaming, and creative production use casesAPI access availableDiffusion Fidelity Rendering technologyLoRA training supportHDR and alpha channel video generation
Free tier + paid plans · from $15 USD/mo
Self-hostable
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LTX exposes its capabilities through a REST API supporting video generation, world simulation, and multimodal outputs. Developers can integrate LTX's proprietary models (LTX-2.5, LTX-2.3, LTX-2, LTXV) or route requests to partner models (Veo 3.1, FLUX.2 Pro, Kling, Seedance, GPT Image, Nano Banana 2) through the same interface.

Integration touchpoints:

  • ComfyUI — node-based workflow integration for visual pipeline builders
  • HuggingFace — model weights and inference endpoints available on the Hub
  • Fal — serverless GPU inference via the Fal platform
  • ElevenLabs — audio generation pairing for video+audio pipelines

Self-hosting: Model weights are openly available, allowing deployment on private or on-premises infrastructure. Fine-tuning via LoRA is supported for adapting models to specific domains (robotics, medical imaging, gaming assets, etc.).

Output formats: HDR video, alpha-channel video (for compositing), and standard video formats are supported via Diffusion Fidelity Rendering.

Licensing: Free commercial use is available for organizations under $10M ARR. Enterprise licensing is available for larger organizations.