Negative Prompt isteğe bağlı
Content to steer the generation away from (artifacts, unwanted motion). Defaults to NVIDIA's recommended i2v negative prompt; pass an empty string to disable.
Enable Prompt Expansion isteğe bağlı
If true, the Cosmos3-Nano Reasoner (a VLM that sees the first frame) rewrites the prompt into the dense caption Cosmos3 was trained on. The app starts a local Reasoner by default, or uses COSMOS_PROMPT_UPSAMPLER_BASE_URL when configured. Falls back to the raw prompt if expansion fails.
Açık Enable Prompt Expansion Enable Agentic Generation isteğe bağlı
Enable the iterative Cosmos agentic loop: prompt upsampling, candidate video generation, VLM critique of sampled frames, and prompt rewrite. Each candidate is a full render, so this is substantially slower and costlier than a single generation.
Kapalı Enable Agentic Generation Agentic Max Iterations isteğe bağlı
Maximum agentic prompt stages when agentic generation is enabled.
1 2 3
Agentic Samples Per Iteration isteğe bağlı
Candidate videos to generate and judge per agentic iteration. The best candidate advances to the next rewrite stage.
1 2 3
Agentic Early Stop isteğe bağlı
Stop the agentic loop early when the critic score clears the strict quality threshold.
Açık Agentic Early Stop Image Size isteğe bağlı
The size of the generated video. The request is clamped and snapped to the nearest supported NVIDIA tier (256p/480p/720p) and aspect ratio.
Square hd Square Portrait 4 3 Portrait 16 9 Landscape 4 3 Landscape 16 9
Num Frames isteğe bağlı
Number of frames to generate. More frames yield a longer video.
Frames Per Second isteğe bağlı
Frames per second of the output video.
Num Inference Steps isteğe bağlı
Number of denoising steps. More steps yield higher quality but take longer.
Guidance scale isteğe bağlı
Classifier-free guidance scale. Higher values increase prompt adherence at the cost of diversity.
Seed isteğe bağlı
The same seed and prompt given to the same model version will produce the same video every time.
Enable Safety Checker isteğe bağlı
Enable content moderation for the input prompt and image. Disabling it requires account authorization; unauthorized requests are always checked.
Açık Enable Safety Checker 