LTX Video 2.3 Fast API

LTX Video 2.3 Fast is a text to video and image to video model by Lightricks, available on the Venice API as ltx-2-v2-3-fast-text-to-video. Requests are anonymized, so the provider never sees your identity.

LTX Video 2.3 Fast API pricing

Model ID	Variant	Privacy	Price
`ltx-2-v2-3-fast-text-to-video`	Text to video	Anonymized	from $0.07 per second
`ltx-2-v2-3-fast-image-to-video`	Image to video	Anonymized	from $0.07 per second

Clip prices for ltx-2-v2-3-fast-text-to-video, silent:

Duration	1080p	1440p	4K
6s	$0.40	$0.79	$1.58
8s	$0.53	$1.06	$2.11
10s	$0.66	$1.32	$2.64
12s	$0.79	$1.58	$3.17
14s	$0.92	$1.85	$3.70
16s	$1.06	$2.11	$4.22
18s	$1.19	$2.38	$4.75
20s	$1.32	$2.64	$5.28

LTX Video 2.3 Fast specifications

Spec	Value
Provider	Lightricks
Released	Mar 5, 2026
Privacy	Anonymized
Open weights	Yes
Modes	text to video and image to video
Resolutions	1080p, 1440p, 4K
Durations	6s, 8s, 10s, 12s, 14s, 16s, 18s, 20s
Aspect ratios	16:9, 9:16
Audio	Optional

How to use the LTX Video 2.3 Fast API

Send requests to POST https://api.venice.ai/api/v1/video/queue with "model": "ltx-2-v2-3-fast-text-to-video" and your API key.

# 1. Queue the job (returns a queue_id)
curl https://api.venice.ai/api/v1/video/queue \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "ltx-2-v2-3-fast-text-to-video",
    "prompt": "Slow aerial drone shot over a misty mountain valley at golden hour",
    "duration": "6s",
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "audio": true
  }'

# 2. Poll until the MP4 is ready
curl https://api.venice.ai/api/v1/video/retrieve \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "ltx-2-v2-3-fast-text-to-video", "queue_id": "<queue_id>" }' --output video.mp4

LTX Video 2.3 Fast API FAQ

How much does the LTX Video 2.3 Fast API cost?

From

0.066 to

0.26 per second of video, depending on resolution, duration and audio. A 6-second 1080p clip costs $0.40. Call POST /video/quote for the exact price before queueing. Prices are in USD and can be paid in DIEM at parity.

What is the LTX Video 2.3 Fast model ID?

Use ltx-2-v2-3-fast-text-to-video as the model parameter. Other variants: ltx-2-v2-3-fast-image-to-video (Image to video).

Is the LTX Video 2.3 Fast API private?

LTX Video 2.3 Fast is anonymized: Venice forwards requests to the provider without your identity, but the provider may retain prompt data, so use a private model for sensitive work.

What resolutions and durations does LTX Video 2.3 Fast support?

Resolutions: 1080p, 1440p, 4K. Durations: 6s, 8s, 10s, 12s, 14s, 16s, 18s, 20s. Aspect ratios: 16:9, 9:16. Audio: optional, with "audio": true.

Which endpoint does the LTX Video 2.3 Fast API use?

Queue a job with POST /video/queue, then poll /video/retrieve for the result.

Related models

LTX Video 2.5 Fast API: from $0.10 per second
Seedance 1.5 Pro API: from $0.02 per second
Seedance 2.0 API: from $0.09 per second
Seedance 2.0 Fast API: from $0.07 per second
Wan 2.7 API: from $0.11 per second

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