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Direct comparison

LTX-2 19B vs. HunyuanVideo 1.5

Compare the exact model versions across shared blind-preference benchmarks, public pricing, release dates, resolution, duration, native audio, access, and model availability.

Overview

Technical specifications and pricing

Technical limits come from model or API documentation. A representative minute price appears only when it can be traced to the exact model. Different resolutions and audio settings may still affect the final charge.

Specifications and pricing for LTX-2 19B and HunyuanVideo 1.5
AttributeLTX-2 19BHunyuanVideo 1.5
ProviderLightricksTencent
ReleasedOctober 2025November 2025
AccessAPI, Web app, LocalAPI, Local
WeightsOpen weightsOpen weights
Parameters19 billion8.3 billion
Maximum resolutionNot published1080p (VSR)
Maximum durationNot publishedNot published
Native audioYesNo
Representative API priceNot publishedNot published
LifecycleNo separate noticeNo separate notice
Technical sourceModel sourceVerified 2026-08-24Model sourceVerified 2026-08-24

Performance

Shared video benchmarks

A row appears only when both exact model versions occur in the same LMArena task and stored dataset revision. Text-to-video and image-to-video are never merged into one score.

LTX-2 19BHunyuanVideo 1.5
LMArena Text to VideoBlind preference rating from the same task and dataset revision
LTX-2 19B1,151.1
HunyuanVideo 1.5No clear lead1,169.2
LMArena Image to VideoBlind preference rating from the same task and dataset revision
LTX-2 19B1,154
HunyuanVideo 1.5Higher value1,195.8

Key to the marks:better valuebetter, but not conclusivetie

Shared video benchmarks for LTX-2 19B and HunyuanVideo 1.5
BenchmarkLTX-2 19BHunyuanVideo 1.5Source
LMArena Text to Video
1,151.1Rank 38, 95% interval 1,142.8 to 1,159.5, 64,706 votes
No clear lead1,169.2Rank 35, 95% interval 1,152.9 to 1,185.5, 4,290 votes
LMArenaRetrieved 2026-08-26
LMArena Image to Video
1,154Rank 42, 95% interval 1,148.7 to 1,159.2, 223,241 votes
Higher rating1,195.8Rank 37, 95% interval 1,180.4 to 1,211.3, 5,478 votes
LMArenaRetrieved 2026-08-26

Higher rating is better. A clear lead is shown only when the published 95% intervals do not overlap.

Key to the marks:better valuebetter, but not conclusivetie

Visual comparison

Sample videos

Only runs from both exact model versions under the same archived prompt and first-output rule appear here. Provider showcases and substitute versions remain excluded.

Controlled practical comparison. Both exact model versions received the same archived prompt in one request. The first output counts. Playback uses the first five seconds, 1280 × 720 pixels, 30 fps, no crop, and muted audio. Provider-side randomness and prompt processing remain model characteristics.

Motion and physical consistency

Anatomy, object consistency, camera tracking, rain, and reflections

LTX-2 19B

Run details

fal.ai. fal-ai/ltx-2-19b/text-to-video. 16:9, one request, first output, requested 5 s, seed 1843750023, request {"prompt":"Generate exactly one continuous five-second 16:9 cinematic video. A fictional bicycle courier in a mustard-yellow raincoat rides a red city bicycle from left to right across a rain-wet Hamburg street at blue hour for the entire clip. The camera tracks her smoothly at waist height. Both hands remain visible on the handlebars, the bicycle geometry stays physically correct, and a transparent umbrella fixed to the bicycle moves naturally in the wind. Wet-street reflections and raindrops follow realistic physics. No cuts, no slow motion, no text, no logos, no subtitles, and no audio.","video_size":"landscape_16_9","num_frames":121,"fps":24,"generate_audio":false,"use_multiscale":true,"camera_lora":"none","acceleration":"regular","guidance_scale":3,"num_inference_steps":40,"enable_prompt_expansion":false,"enable_safety_checker":true,"video_output_type":"X264 (.mp4)","video_quality":"high","video_write_mode":"balanced"}, configured price estimate $0.25.

Generated Aug 24, 2026. Source

HunyuanVideo 1.5

Run details

fal.ai. fal-ai/hunyuan-video-v1.5/text-to-video. 16:9, one request, first output, requested 5 s, seed 1928510983, request {"prompt":"Generate exactly one continuous five-second 16:9 cinematic video. A fictional bicycle courier in a mustard-yellow raincoat rides a red city bicycle from left to right across a rain-wet Hamburg street at blue hour for the entire clip. The camera tracks her smoothly at waist height. Both hands remain visible on the handlebars, the bicycle geometry stays physically correct, and a transparent umbrella fixed to the bicycle moves naturally in the wind. Wet-street reflections and raindrops follow realistic physics. No cuts, no slow motion, no text, no logos, no subtitles, and no audio.","aspect_ratio":"16:9","resolution":"480p","num_frames":121,"num_inference_steps":28,"enable_prompt_expansion":false}, configured price estimate $0.38.

Generated Aug 24, 2026. Source

Prompt and integrity hashes

Generate exactly one continuous five-second 16:9 cinematic video. A fictional bicycle courier in a mustard-yellow raincoat rides a red city bicycle from left to right across a rain-wet Hamburg street at blue hour for the entire clip. The camera tracks her smoothly at waist height. Both hands remain visible on the handlebars, the bicycle geometry stays physically correct, and a transparent umbrella fixed to the bicycle moves naturally in the wind. Wet-street reflections and raindrops follow realistic physics. No cuts, no slow motion, no text, no logos, no subtitles, and no audio.

Prompt SHA 256: 206a9182584e93790fd6df608e8a2065fe2c8f747e85aeaaf4c8ea84040e6299

LTX-2 19B, Original SHA 256: 50e1b2b965e454d2b281c824e51c37f67e77180db2666fe867f468cdd1915dec

LTX-2 19B, Normalized SHA 256: 6e14e70363b037fb264d594ea3b9bf8af38d28b3e4f17bf1ed6c86be8ef22229

HunyuanVideo 1.5, Original SHA 256: 79196c1316e097a8236eb7d97ae43945a29780e837c02e65807fcf67443596dd

HunyuanVideo 1.5, Normalized SHA 256: bbf97d2e087a0d0a77e5f8f254ff74eae8808e8449597e6581e946410c445538

How to read the data

Preference is not the same as production fit

A higher LMArena rating means that outputs from this exact configuration were preferred more often in blind comparisons.

Motion control, identity consistency, audio, turnaround time, moderation, and licensing may matter more than the aggregate preference rating.

Prices are representative public minute rates, not a normalized cost benchmark.

More matchups

Related video model comparisons

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View the complete video model comparison