falText to videoComing soon
falfal-ai/ltx-2.3/text-to-video/fast
fal-ai/ltx-2.3/text-to-video/fast is a text to video tool from fal that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.
This tool is listed but not yet available to run.
Priced by usagePricing
duration: 6 (default) $0.468, 8 $0.624, 10 $0.78, 12 $0.936, 14 $1.092, 16 $1.248, 18 $1.404, 20 $1.56, otherwise $1.56 per run. The final charge comes from usage.
Limits
- Runs
- In the background
- Returns
- video
- Longest queue wait
- 3600s
- Run deadline
- 3600s
- Largest inline input
- 1024 KB
- Largest input file
- 500 MB
- Largest output
- 4768 MB
- Outputs per run
- 16
Input
| Field | Kind | Default | Description |
|---|---|---|---|
prompt required | text | — | The prompt to use for the generated video |
duration | one of 6, 8, 10, 12, 14, 16, 18, 20 | 6 | The duration of the generated video in seconds. The fast model supports 6-20 seconds. Note: Durations longer than 10 seconds (12, 14, 16, 18, 20) are only supported with 25 FPS and 1080p resolution. |
resolution | one of 1080p, 1440p, 2160p | 1080p | The resolution of the generated video |
aspect_ratio | one of 16:9, 9:16 | 16:9 | The aspect ratio of the generated video |
fps | one of 24, 25, 48, 50 | 25 | The frames per second of the generated video |
generate_audio | true or false | true | Whether to generate audio for the generated video |
Same request in code
curl https://api.spiral.ai/v1/runs \
-H "Authorization: Bearer $SPIRAL_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"provider": "fal",
"model": "fal-ai/ltx-2.3/text-to-video/fast",
"input": {
"prompt": "Drone descent through the open oculus of a derelict Soviet-era radio telescope dish, spiraling downward into the rusted parabolic bowl where a lone botanist…"
}
}'