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Seedance 2.5 Text to Video

bytedance/seedance/2.5/text-to-video

ByteDance's next-generation text-to-video model, generating native single-shot clips up to 30 seconds at 720p with coherent motion, native audio, and director-level camera control for professional-grade video creation.

Use in agentGet API key
Base price
$1.12 / run
Execution
async
Model type
video
Input fields
5

Try the model

Playground

Open playground
Input
The text prompt to generate a video from.
The duration of the generated video in seconds (4-30). Allowed values: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30.
The aspect ratio of the generated video. Allowed values: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9.
The resolution of the video to generate. Allowed values: 480p, 720p, 1080p.
Whether to generate synchronized audio (voice, SFX, BGM) for the video.
OutputReady

Your output will appear here

Complete the inputs, then click Run.

Specifications

Pricing

Base price
$1.12 / run
Billing formula
(usage.total_seconds ?? ((params.duration ?? 5) == 'auto' ? 5 : (params.duration ?? 5))) * ((params.resolution ?? '720p') == '480p' ? 0.099703264095 : (params.resolution ?? '720p') == '720p' ? 0.224332344214 : (params.resolution ?? '720p') == '1080p' ? 0.555222551929 : (0 / 0))

Context & modalities

Input
Schema-defined
Output
video

Capabilities

Chat
Not supported
Vision
Not supported
Reasoning
Not supported
Structured output
Not supported
Function calling
Not supported
Audio input
Not supported

Access

Provider
Bytedance
Model ID
bytedance/seedance/2.5/text-to-video
Execution
async
API
Unified Run API
Endpoint
/v1/run

API README

Seedance 2.5 Text to Video

ByteDance's next-generation text-to-video model — generates native single-shot video up to 30 seconds 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.

Highlights

Native 30-second single-shot — Generate long, coherent takes in one request without the drift or stitching of multi-clip workflows.

Native audio generation — Automatically creates synchronized sound effects, ambient audio, and lip-synced speech. Toggle with generate_audio parameter.

Pure imagination — No input image required. Describe your scene and the model brings it to life with cinematic quality.

Flexible duration — Generate 4 to 30 second clips in a single request.

Pricing

Rates use Volcengine's non-promotional list price converted at 1 USD = 6.74 CNY.

ResolutionOutput price per second
480p$0.10
720p$0.22
1080p$0.56

Default: 5 output seconds at 720p = $1.12. Input images do not add a video-input charge. Audio generation is included at no extra cost.

When to Use

✅ Good fit❌ Consider alternatives
Creative concept visualizationReal-time video streaming
Social media content creationLong-form video (>30s)
Marketing and ad clipsPixel-perfect frame control
Storyboard-to-video workflowsImage-guided generation (use I2V)
Quick video prototypingMulti-reference scenes (use Ref2V)

Technical Specs

SpecValue
InputText prompt
OutputMP4 video with optional audio
Resolution480p / 720p / 1080p
Aspect ratios16:9, 9:16, 1:1, 4:3, 3:4, 21:9
Duration4–30 seconds
ExecutionAsync (submit → poll for result)
Typical latency2–10 minutes

Related

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Endpoint
https://api.sandbase.ai/v1/run
Model ID
bytedance/seedance/2.5/text-to-video
# Preserve Unicode and shell metacharacters in the request body.
result=$(printf '%s' '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' \
  | base64 --decode \
  | curl --fail-with-body --silent \
      -X POST "https://api.sandbase.ai/v1/run" \
      -H "Authorization: Bearer $SANDBASE_API_KEY" \
      -H "Content-Type: application/json" \
      --data-binary @-)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

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