Agnes AI Opens a Permanently Free Multimodal API with No Token Limits

A zero-cost, OpenAI-compatible multimodal API removes the token budget barrier for prototyping text, image, and video pipelines. Developers can experiment with agent tooling, content generation, and short-form video without metered billing, though the 18-second video cap and hard frame-count constraints limit production use.

Three self-developed models — Agnes-2.0-Flash for text and code, Agnes-Image-2.1-Flash for image generation, and Agnes-Video-V2.0 for video — are accessible through a single OpenAI-compatible API. Registration requires only an email, no credit card or identity verification. The text model handles dialogue, code writing, and logical reasoning; the image model supports text-to-image and image-to-image at 2K resolution; the video model produces up to 18-second clips with native audio-video synchronization and storyboard-driven prompts.

Switching from OpenAI's SDK requires changing only the base URL to Agnes's gateway. The video endpoint enforces a hard cap of 441 frames at 24 fps, yielding a maximum duration of roughly 18 seconds, and frame counts must follow an 8n+1 rule. English prompts produce more stable video results than Chinese, though both are supported.

Walkthrough code is provided for each modality: generating a cyberpunk particle background in a single HTML file, a p5.js meteor-dodging game, image-to-image style transfer mimicking Detective Conan's art style, and multi-shot horror short films with lip-synced dialogue. All generated outputs are watermark-free.