Nodes/comfyui-arkennemasis/arkennemasis fal · Seedance 2.5 Text to Video · $0.22-1.16/s
ComfyUI Node

arkennemasis fal · Seedance 2.5 Text to Video · $0.22-1.16/s

Dreamina Seedance 2.5 generates native 30-second single-shot video at up to 720p from a single text prompt, reasoning about the whole shot at once so motion, lighting, and subject identity stay coherent from first frame to last. Pricing (from fal, 2026-09-29): For 480p, your request will cost roughly $0.2205 per second of generated video, for 720p, you will be charged roughly $0.4730 per second of generated video, and for 1080p, roughly $1.164 per second of generated video. Your request will cost $0.0214 per 1000 tokens for 480p and 720p video and roughly $0.0234 per 1000 tokens for 1080p. The number of tokens is roughly given by (height of output video * width of output video * (input video duration + output video duration) * 24) / 1024. Model page: https://fal.ai/models/bytedance/seedance-2.5/text-to-video Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/bytedance_seedance-2.5_text-to-video/.

By Hishamahmer·Created 2 months ago·Updated 4 days ago· 10
arkennemasis fal · Seedance 2.5 Text to Video · $0.22-1.16/s
    • video
    • video_path
    • seed
    • draft_id
    • info
    ◄prompt►
    ◄resolution720p►
    ◄draftfalse►
    ◄durationauto►
    ◄aspect_ratioauto►
    ◄generate_audiotrue►
    ◄bitrate_modestandard►
    ◄codecauto►
    ◄max_cost_usd20.0►
    ◄reuse_identical_runtrue►
    ◄extra_json►
    ◄max_concurrent1►
    Categoryarkennemasis/fal/Video/Seedance

    Inputs (12)

    NameTypeDefaultDescription
    promptSTRINGThe text prompt used to generate the video
    resolutionCOMBO720pVideo resolution - 480p for faster generation, 720p for balance, 1080p for high quality.
    draftBOOLEANfalseGenerate a draft preview at 480p, overriding resolution. Returns a draft_id for completing the draft at 1080p within seven days.
    durationCOMBOautoDuration of the video in seconds. Supports 4 to 30 seconds, or auto to let the model decide based on the prompt.
    aspect_ratioCOMBOautoThe aspect ratio of the generated video. Use 16:9 for landscape, 9:16 for portrait/vertical, 1:1 for square, 21:9 for ultrawide cinematic, or auto to let the model decide.
    generate_audioBOOLEANtrueWhether to generate synchronized audio for the video, including sound effects, ambient sounds, and lip-synced speech. The cost of video generation is the same regardless of whether audio is generated or not.
    bitrate_modeCOMBOstandardOutput bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate.
    codecCOMBOauto'auto' retains default video codec behaviour; 'H264' uses H.264; 'H265' uses H.265.
    max_cost_usdoptFLOAT20.00–100000Safety cap. If the estimated cost of this run is above this many US dollars the node stops BEFORE sending anything to fal. 0 = no cap.
    reuse_identical_runoptBOOLEANtrueIf these exact inputs (the settings AND the same pictures/clips/audio) were already paid for and the files are still in output/fal, return them instead of paying again - also after a ComfyUI restart. Turn off for a fresh take with the same settings.
    extra_jsonoptSTRINGAdvanced: a JSON object merged into the request last, for any fal field this node has no box for. Example: {"seed": 7}. Leave empty normally.
    max_concurrentoptINT11–32How many paid fal calls may run at the same time in one run, across every fal node. 1 (default) = one after another. This node starts its paid part only while fewer than this many fal calls are running. Once any fal node fails, the ones still waiting are not started, so nothing more is billed.

    Outputs (5)

    NameTypeDescription
    videoVIDEO—
    video_pathSTRING—
    seedINT—
    draft_idSTRING—
    infoSTRINGJSON: request id, cost estimate, saved files and fal's full answer.