SSyncDev

AI model comparison

LTX 2.5 Fast vs LTX 2.5 Pro

Compare pricing, context limits, supported inputs and deployment options to choose a model for your workflow.

Fast and Pro are managed LTX 2.5 video routes. Both document synchronized video and audio generation from supported prompts and references. Their supported duration, frame-rate and resolution combinations differ, so the first comparison should use a configuration available on both routes. Local LTX checkpoints are a separate deployment option.

Use a shot brief with a defined action and sound requirement, then repeat it with a supplied opening image. Inspect motion, subject consistency, camera behaviour and synchronization through the whole clip. Keep settings and reference assets identical for the initial trial. Count rejected generations as part of the time and cost needed to deliver an accepted shot.

Check the API’s operation table before attempting editing, extension or retake workflows. An operation present in an open-source pipeline or another LTX API version may not be supported by these particular managed routes. Preserve task identifiers and response status when handling asynchronous generation.

Side-by-sideCapabilities and practical differences

Lightricks

LTX 2.5 Fast

LTX 2.5 Fast is a managed route for synchronized video and audio generation from supported prompts and references.

Accepts

  • Text input
  • Image input
  • Audio input

Produces

  • Video output
  • Audio output
Full model profiledocs.ltx.io ↗
VS

Lightricks

LTX 2.5 Pro

LTX 2.5 Pro is a managed route for synchronized video and audio generation from supported prompts and references.

Accepts

  • Text input
  • Image input
  • Audio input

Produces

  • Video output
  • Audio output
Full model profiledocs.ltx.io ↗

Specifications

Pricing, limits and capabilities

Specifications for LTX 2.5 Fast and LTX 2.5 Pro. Higher limits and lower prices describe these figures only.
SpecificationLTX 2.5 FastLTX 2.5 Pro
ProviderLightricksLightricks
Listed pricing routeLightricksLightricks
Model family——
Accepted inputstext, image, audiotext, image, audio
Produced outputsvideo, audiovideo, audio
Reasoning modeNot documentedNot documented
Tool callingNot documentedNot documented
Image inputDocumentedDocumented
Audio inputDocumentedDocumented
Structured outputNot documentedNot documented
LicensePublisher API termsPublisher API terms

Workload guidance

Which model should you choose?

Try Fast for iteration when the supported configuration and resulting clips meet the brief. Evaluate Pro for the final-shot requirements that remain difficult on the faster route. Choose from accepted visual and audio results, supported output combinations and the selected rate card. A descriptive tier name is not an independent quality measurement. Confirm the intended duration and frame rate before estimating a project, especially when moving to a higher resolution.

Documentation and model profiles

Explore each model’s features, API requirements and licence terms in the sources below.

Questions people ask

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

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