Skip to main content
AI video model
Kling AI
Kling

Kling V2.1 Pro

Kling V2.1 Pro is Kyeo's High Quality (1080p) first-last-frame image-to-video route. It requires 1 first image and can use image 2 as the ending; 5- and 10-second requests cost 50 and 100 credits.

Workflow
First/last-frame image-to-video
Credit cost
50-100 credits per request
Prompt limit
5,000 characters
Upload limit
First image required; last image optional; each up to 10 MB
Officially positioned as the High Quality (1080p) tier
The required first image maps to starting image; an optional last image maps to ending-frame image
Kyeo credits: 5 seconds costs 50; 10 seconds costs 100
Controls: duration, negative prompt, and CFG
30-second overview
Kling
50-100 credits / request
What it does best
Pro corresponds to Kling AI 2.1's High Quality (1080p) tier; Kyeo exposes it as a fixed image-to-video workflow with a required first image and an optional last image.
Best for
It fits product transitions, character movement, poster-to-end-card drafts, and storyboard links where both the starting composition and desired ending already exist.
Popular searches
How do I use Kling V2.1 Pro?Kling V2.1 Pro pricingKling V2.1 Pro tutorial

At a glance

What is this model like?

This image-to-video workflow always uses a first image and may use image 2 as the last frame. Controls cover only duration, negative prompt, and CFG; there is no text-only, aspect-ratio, or audio control.

What it does best
Pro corresponds to Kling AI 2.1's High Quality (1080p) tier; Kyeo exposes it as a fixed image-to-video workflow with a required first image and an optional last image.
Best for
It fits product transitions, character movement, poster-to-end-card drafts, and storyboard links where both the starting composition and desired ending already exist.
Why use it on Kyeo AI
Kyeo writes image 1 to starting image and image 2 to ending-frame image, then shows the 5- and 10-second credit tiers for repeatable tests with fixed assets.

Key facts

Quickly assess whether this model fits your use case.

Category
AI video model
Vendor
Kling AI
Model family
Kling
Integration
Current site integration
Kling V2.1 Pro image-to-video
Kling — Asynchronous task
Runtime
Asynchronous task
Official tier
High Quality tier (1080p)
Prompt limit
5,000 characters
Upload limit
JPEG/PNG first; JPEG/PNG/WebP last; each up to 10 MB

Also known as

The same model may appear under different names across documentation and community discussions; this list keeps them easy to search and compare.

Kling 2.1 Pro
Kling V2 1 Pro
Kling — Kling V2.1 Pro resolution
Kling AI 2.1 Pro

Common questions

These practical questions focus on the task, input conditions, and result requirements you should confirm before choosing.

How do I use Kling V2.1 Pro?
Kling V2.1 Pro pricing
Kling V2.1 Pro tutorial
What is Kling V2.1 Pro best for?
Kling V2.1 Pro AI video generation
Does Kling V2.1 Pro support text-to-video?
Kling V2.1 Pro image-to-video
Kling V2.1 Pro CFG range
Kling V2.1 Pro first-and-last-frame
Kling V2.1 Pro resolution
Kling V2.1 Pro input limit
Kling V2.1 Pro video generation model

Selection guide

Use these decision points when choosing a model.

1
Choose it for a designed start and end

Compare Pro when you have 1 first image and an optional last image and need a 1080p transition lasting 5 or 10 seconds.

2
Compare another workflow when needed

Compare Standard for a 720p single-image test or Master for text and image routes in one model.

3
Start with one controlled test

Fix the first image, last image, prompt, negative prompt, and CFG for a 5-second run; change one variable at a time and record whether the ending moves closer to the last image.

Popular comparisons

Compare common alternatives on the same task to clarify differences in inputs, controls, and cost.

How does Kling V2.1 Pro differ from Kling V2.1 Standard?
Kling V2.1 Pro vs Kling V2.1 Standard
How does Kling V2.1 Pro differ from Kling V2.1 Master?
Kling V2.1 Pro vs Kling V2.1 Master
How does Kling V2.1 Pro differ from V2.5 Turbo Pro?
Kling V2.1 Pro vs Kling V2.5 Turbo Pro

Model comparison

Compare the current model with alternatives at a glance.

Official resolution tier
Kling V2.1 Pro
High Quality (1080p)
Kling V2.1 Standard
Standard (720p)
Kling V2.1 Master
Master (1080p)
Image inputs
Kling V2.1 Pro
Required first image + optional last image
Kling V2.1 Standard
1 required first image
Kling V2.1 Master
1 image for its image workflow
Generation routes
Kling V2.1 Pro
Image-to-video only
Kling V2.1 Standard
Image-to-video only
Kling V2.1 Master
Text and image routes
Current credits
Kling V2.1 Pro
5 seconds: 50; 10 seconds: 100
Kling V2.1 Standard
5 seconds: 25; 10 seconds: 50
Kling V2.1 Master
5 seconds: 160; 10 seconds: 320
Last-frame control
Kling V2.1 Pro
Optional ending-frame image
Kling V2.1 Standard
Not supported
Kling V2.1 Master
No last-frame field on the current image workflow

Practical usage insights

Practical guidance based on public sources, current on-site limits, and representative tasks.

Choose by workflow boundaries first

Kyeo's Pro integration only accepts image-to-video work. Text-only, audio, or aspect-ratio requirements should rule it out rather than borrowing features from other Kling versions.

A resolution tier is not a measured result

Kuaishou labels High Quality as 1080p. That establishes the official tier, not real-world image quality, motion, last-frame adherence, speed, or stability for a specific asset.

Capabilities

Fixed first-last-frame image workflow

Does Kling V2.1 Pro support text-to-video? — It fits product transitions, character movement, poster-to-end-card drafts, and storyboard links where both the starting composition and desired ending already exist.

Current parameter boundaries are documented

`prompt` allows up to 5,000 characters, `negative_prompt` up to 500, and `cfg_scale` runs from 0 to 1 in 0.1 steps; `duration` is limited to 5 or 10 seconds.

First and last image formats differ

Kling V2.1 Pro CFG range — 5,000 characters

Use cases

Product start-to-end transitions

Test a turn, opening action, or scene change with approved product images; review packaging, trademarks, text, and product geometry frame by frame.

Character movement to a final pose

Use start and end images of the same character to test action and camera paths, then check identity, clothing, anatomy, and pose continuity.

Poster-to-end-card draft

Turn compatible poster and end-card compositions into a 5-second transition draft; it cannot guarantee accurate text or final production quality.

Prompt tips

Make the first and last images compatible

Keep subject identity, perspective, framing, and scene structure compatible, with plausible space for the intended movement.

Describe only the change between them

State the subject movement, camera motion, order, and speed without repeating static details already visible in the images.

Test one variable at a time

Keep both images and the main prompt fixed, then adjust duration, negative prompt, or CFG separately so each difference has a traceable cause.

Why choose it

Optional image 2 maps directly to ending-frame image, giving the ending a defined input field.
The 5- and 10-second tiers cost 50 and 100 credits, so the Kyeo budget is explicit.
Kling V2.1 Pro input limit — It fits product transitions, character movement, poster-to-end-card drafts, and storyboard links where both the starting composition and desired ending already exist.
Kuaishou officially defines High Quality as the 1080p tier, so resolution does not need to be inferred from the Pro name.

What to know first

Kyeo's current route is image-to-video only and cannot generate from text alone.
The first image is required. The optional last image can guide the ending, but it does not lock the result pixel for pixel.
There is no aspect ratio, audio, or safety-check switch; the input workflow determines framing, and people must still review safety.
If you already need to compare text and image generation, Master or V2.5 Turbo Pro is the more direct choice.

Adjustable parameters

Quickly assess whether this model fits your use case.

Video duration
duration
Optional
Parameter type: select
Default: 5
5 seconds
10 seconds
Negative prompt
negative_prompt
Optional
Parameter type: text
Up to 500 characters
Prompt adherence
cfg_scale
Optional
Parameter type: number
Default: 0.5
Range 0 - 1

Credit usage

50-100 credits / request

On Kyeo, 5 seconds costs 50 credits and 10 seconds costs 100; confirm the workbench total before submitting.

Budget tip

Before batch generation, run an A/B test with the same assets across the current model and alternatives to validate quality and avoid wasting credits.

FAQ

Related models

Compare these similar candidates before deciding.

Kling V2.1 Standard

Kling V2.1 Standard is Kyeo's 720p single-image video route. It requires 1 JPEG or PNG plus a prompt and returns a 5- or 10-second task for 25 or 50 credits, respectively.

AI video model
25-50 credits / request

Kling V2.1 Master

Kling V2.1 Master is Kyeo's 1080p text and single-image video entry. No image selects the text workflow; 1 JPEG/PNG selects the image workflow. Both cost 160 credits for 5 seconds or 320 for 10.

AI video model
160-320 credits / request

Kling V2.5 Turbo Pro

Kling V2.5 Turbo Pro gives Kyeo separate text and image routes behind one entry. Uploading 1-2 images switches to first/last-frame video; both routes offer 5 or 10 seconds at 42 or 84 credits.

AI video model
42-84 credits / request

Sources

Content is based on model documentation, feature references, and the settings available on Kyeo AI.

Source note

Check Kling V2.1 Pro 1080p image-to-video, required first and optional last images, 5/10 seconds, 50/100 credits, negative prompt, and CFG limits. On Kyeo, 5 seconds costs 50 credits and 10 seconds costs 100; confirm the workbench total before submitting.

Last updated: 2026-08-27
Kuaishou: Kling AI anniversary and 2.1 tiers
Official
View source
Kuaishou: second-quarter and interim 2025 results (Kling AI 2.1)
Official
View source