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LTX 2.3 Fast vs Google Veo 3.1

This page compares LTX 2.3 Fast vs Google Veo 3.1 on MaxVideoAI using the same prompts, side-by-side renders, key specs, and a scorecard across 11 criteria. Use it to shortlist the best fit — then open each engine profile for full specs and prompt examples.

6.7/10Score

LTX 2.3 Fast

Strengths: Pricing, Speed & Stability

7.9/10Score

Google Veo 3.1

Strengths: Multi-Shot Sequencing, Audio & Lip Sync

Scorecard (Side-by-Side)

Scores reflect quality and control on MaxVideoAI across 11 criteria.

LTX 2.3 FastCriteriaGoogle Veo 3.1

7.1

Prompt Adherence

iprompt alignment / instruction following

8.4

6.9

Visual Quality

iimage quality / aesthetic quality / realism / artifacts / flicker

8.1

7.2

Motion Realism

imotion smoothness / physics plausibility

7.9

5.9

Temporal Consistency

itemporal coherence / identity consistency

7.4

7.0

Human Fidelity

ifaces / hands / body realism

8.2

6.2

Text & UI Legibility

itext rendering / readability

7.2

7.3

Audio & Lip Sync

ilip sync quality / dialogue sync

9.0

6.0

Multi-Shot Sequencing

ishot-to-shot continuity / multi-shot

7.8

7.1

Controllability

icamera control / constraint following

8.3

9.0

Speed & Stability

ilatency / success rate

7.4

9.1

Pricing

iprice per second / credits / estimated cost

4.1

Winner summary

Leads on scorecard

Google Veo 3.1 leads on 9/11 (best: Multi-Shot Sequencing, Audio & Lip Sync).

Cheaper on MaxVideoAI

Cheaper: LTX 2.3 Fast (1080p: $0.05/s vs 720p: $0.48/s).

Video-to-Video

Video-to-Video: Google Veo 3.1 (Not supported vs Supported (Extend from one source video)).

Generate with

LTX 2.3 Fast

Full engine profile

Generate with

Google Veo 3.1

Full engine profile

Key Specs (Side-by-Side)

Compare key AI video model specs side-by-side (pricing, inputs, resolution, duration, aspect ratios, audio, and core controls). This is a high-level snapshot — see the full engine profile for the complete feature set and prompt examples.

LTX 2.3 FastKey specGoogle Veo 3.1

1080p: $0.05/s

4K: $0.19/s

Pricing (MaxVideoAI)

720p: $0.48/s

4K: $0.72/s

Text-to-Video

Image-to-Video

Video-to-Video

First/Last frame

Reference image / style reference

Image-to-Video: 1 start image; Reference-to-Video: 1-3 stills

Reference video

4K (6–10s); 1080p for >10s routing

Max resolution

20s (>10s requires 1080p / 25 fps)

Max duration

16:9 / 9:16

Aspect ratios

16:9 / 9:16

24 fps / 25 fps / 48 fps / 50 fps

FPS options

24 fps

MP4

Output format

MP4

Audio output

Native audio generation

Lip sync

Prompt-based only

Camera / motion controls

Prompt-based only

No (SanShengAI)

Watermark

No (SanShengAI)

Showdown (same prompt)

Side-by-side renders from the same prompt on MaxVideoAI. Prompts are identical; outputs may vary by model.

Showing up to 3 prompt pairs for clarity.

Fast Motion + Physics (16:9)

What it tests: Motion Realism + Temporal Consistency + Visual Quality

Prompt

Source prompts stay in English to keep the same test across engines.

LTX 2.3 Fast

Placeholder example — prompt render coming soon

Google Veo 3.1

Placeholder example — prompt render coming soon

Open generator:Generate with LTX 2.3 Fast Generate with Veo 3.1Opens the generator with this model.

UGC Talking Head + Lip Sync (9:16)

What it tests: Human Fidelity + Audio/Lip Sync + Prompt Adherence

Prompt

Source prompts stay in English to keep the same test across engines.

LTX 2.3 Fast

Placeholder example — prompt render coming soon

Google Veo 3.1

Placeholder example — prompt render coming soon

Open generator:Generate with LTX 2.3 Fast Generate with Veo 3.1Opens the generator with this model.

Hands + Product Demo + On-screen Text

What it tests: Hands/Fingers + Text & UI Legibility + Prompt Adherence

Prompt

Source prompts stay in English to keep the same test across engines.

LTX 2.3 Fast

Placeholder example — prompt render coming soon

Google Veo 3.1

Placeholder example — prompt render coming soon

Open generator:Generate with LTX 2.3 Fast Generate with Veo 3.1Opens the generator with this model.

This side-by-side AI video comparison uses identical prompts to highlight differences in motion, realism, human fidelity, and text legibility. For full specs, controls, and more prompt examples, open each engine profile.

FAQ

Quick answers about LTX 2.3 Fast vs Google Veo 3.1 on MaxVideoAI (pricing, modes, specs, and why results differ).

What are LTX 2.3 Fast and Google Veo 3.1?

LTX 2.3 Fast and Google Veo 3.1 are AI video generation engines available on MaxVideoAI. This page compares them side-by-side using the same prompts, key specs, and performance data shown above.

Which is better: LTX 2.3 Fast or Google Veo 3.1?

It depends on your workflow. Use the scorecard and the “same prompt” showdowns to compare prompt adherence, motion realism, human fidelity, and text legibility — then open each engine profile for full details.

Which is cheaper on MaxVideoAI?

Pricing varies by engine and settings (duration, resolution, audio). Currently, LTX 2.3 Fast starts at 1080p: $0.05/s and Google Veo 3.1 starts at 720p: $0.48/s (see “Pricing (MaxVideoAI)” for details).

What are the biggest differences between LTX 2.3 Fast and Google Veo 3.1?

First/Last frame: LTX 2.3 Fast is supported (start + end image in I2V) vs Google Veo 3.1 is supported.
Max resolution: LTX 2.3 Fast is 4K (6–10s); 1080p for >10s routing vs Google Veo 3.1 is 4K.

Do they support Text-to-Video / Image-to-Video / Video-to-Video?

On MaxVideoAI: Text-to-Video is Supported vs Supported; Image-to-Video is Supported vs Supported; Video-to-Video is Not supported vs Supported (Extend from one source video). Some fields may still be under validation.

Do they support First/Last frame or references?

First/Last frame is Supported (start + end image in I2V) vs Supported. Reference image/style is Supported (single start image; no separate style-reference stack) vs Image-to-Video: 1 start image; Reference-to-Video: 1-3 stills; Reference video is Not supported vs Supported (one source clip for Extend).

What are the max resolution, duration, and aspect ratios?

Max output is 4K (6–10s); 1080p for >10s routing / 20s (>10s requires 1080p / 25 fps) for LTX 2.3 Fast and 4K / 8s for Google Veo 3.1. Supported aspect ratios include 16:9 / 9:16 vs 16:9 / 9:16 (see Key Specs for the full list).

Do they support audio generation and lip sync?

Audio output is Supported vs Supported. Native audio generation is Supported vs Supported, and lip sync is Supported vs Supported (some fields may still be under validation).

Does MaxVideoAI add a watermark?

No. MaxVideoAI exports are watermark-free (“Watermark: No (MaxVideoAI)”).

Why do results look different with the same prompt?

Even with identical prompts, models interpret instructions differently and use different training data and generation strategies. That’s why the Showdown section exists: same prompt, side-by-side outputs.

Where can I find full specs, controls, and more prompt examples?

Open the full engine profiles for complete specs, controls, and more prompts: /models/ltx-2-3-fast and /models/veo-3-1. You can also browse more outputs in the engine galleries.

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