Reference-driven short video
Creators can combine character, product, wardrobe, prop, and environment references instead of describing every visual detail in text.
Independent tool overview
Kling O1 at a glance
Kling O1 is Kling AI's unified multimodal video model for generating, referencing, transforming, and extending video with text, images, subjects, and footage. It remains an important model in Kling's product history, but Kling VIDEO 3.0 Omni is now its direct successor.
Visit the official Kling O1 site ↗
- Product type
- Unified multimodal video generation and editing model
- Developer
- Kling AI by Kuaishou
- Released
- December 1, 2025
- Inputs
- Text, images, saved subjects, frames, and video
- O1 generation cost
- 8 or 12 credits per second
- Current successor
- Kling VIDEO 3.0 Omni
- Free option
- Basic plan available with limited access
- Last reviewed
- August 29, 2026
Overview
What Kling O1 is
Kling O1, also called Kling VIDEO O1, launched in December 2025 as a unified creative engine for video generation and editing. Instead of forcing creators to choose a separate model for every task, it accepts combinations of text, images, saved subjects, and video, then uses those inputs to generate or transform a shot.
The model's strongest idea is that every input can act as an instruction. A creator can reference a character from several angles, borrow movement or camera language from a clip, generate from text or frames, remove or replace an object, change a background or weather, redraw the style, or extend the action before or after an existing shot.
Kling's official guide says O1 can accept up to seven images or subjects when no video is supplied. When a video is included, the combined image-and-subject limit falls to four. The uploaded video must be three to ten seconds, no larger than 200 MB, and no higher than 2K. O1's published high-quality generation rate is eight credits per second without a video input and twelve credits per second with one.
Kling VIDEO 3.0 Omni is the direct successor to VIDEO O1. Kling says the 3.0 generation adds native audio, multi-shot control, stronger element consistency, multilingual dialogue, text rendering, and clips up to fifteen seconds. O1 is still useful to understand and may remain selectable in some workflows, but new projects should compare it with the current Omni model before committing a budget.
Use cases
Who Kling O1 is best for
The strongest fit depends on the job you need the product to complete, not the size of its feature list.
Prompt-based video changes
O1 can make semantic changes such as replacing a subject, changing weather, removing an object, altering a color, or restyling footage.
Consistent campaign assets
Saved subjects and multiple references help teams keep a recognizable person, product, costume, or location across related clips.
Previsualization and concept testing
Filmmakers and creative teams can explore shots, camera treatments, transitions, and visual directions before committing to production.
Product and fashion concepts
A product image, model reference, clothing image, and scene reference can be combined to prototype ads and lookbook-style footage.
Capabilities
Core Kling O1 features
Unified generation and editing
One model covers text-to-video, frame-driven video, reference generation, additions, removals, transformations, style redraws, and shot extension.
Multimodal instructions
Text, images, saved subjects, and video can be mixed so a reference supplies identity, appearance, movement, framing, or style.
Elements and saved subjects
Creators can build a subject from multiple angles and reuse people, characters, products, props, wardrobe, or backgrounds.
Multi-subject composition
Several referenced subjects can be combined in one shot with a prompt describing their actions, relationships, setting, camera, and style.
Text-to-video
O1 can generate a new shot from a written scene description without requiring source media.
Frame-based generation
Start, end, or other frame references can guide composition and the visual transition across a generated clip.
Reference-video guidance
An uploaded clip can guide action or camera motion and can be used to create action before or after the reference shot.
Object and subject replacement
Natural-language instructions can replace a person, object, background, clothing item, or other visible element.
Content removal and repair
The model can remove unwanted visual elements and reconstruct the affected region without a manually drawn mask.
Style and environment changes
Creators can redraw a clip into a new visual style or change color, lighting, background, weather, and atmosphere.
Shot and camera extension
O1 can generate preceding or following action and reinterpret framing or camera angle from an existing clip.
Dedicated Omni workspace
Kling created a combined creation surface where references are attached and called within a multimodal instruction.
Process
How the Kling O1 workflow works
Step 1
Choose O1 or its successor
Check whether the legacy O1 workflow or current VIDEO 3.0 Omni better fits the need for audio, duration, multi-shot control, and current plan access.
Step 2
Define one shot-level goal
State the intended subject, action, environment, camera behavior, visual style, duration, and the one change that matters most.
Step 3
Prepare clean references
Use sharp, well-lit, rights-cleared images with consistent identity and minimal visual conflict; use multiple angles when creating a subject.
Step 4
Assign each reference a role
Specify which asset controls the character, product, outfit, setting, motion, composition, or style instead of leaving the model to infer it.
Step 5
Protect unchanged details
For edits, describe both the requested change and the faces, logos, geometry, timing, camera motion, or background details that must remain stable.
Step 6
Generate a short test
Use the shortest practical duration and a single clear action before spending credits on longer or more complex variations.
Step 7
Inspect frame by frame
Check identity, hands, objects, physics, continuity, text, brand assets, transitions, and unexpected additions across the entire result.
Step 8
Change one variable
Revise a single prompt section or reference at a time so the team can understand which change improved or damaged the result.
Step 9
Finish outside the generator
Use a conventional editor for precise cuts, timing, sound mix, captions, color, legal review, and final quality control.
Cost
Kling O1 pricing and free plan
Kling uses memberships plus credits. The current official plan guide lists a free Basic tier and introductory monthly offers from $6.99 for Standard to $127.99 for Ultra, with higher renewal prices shown. Kling O1 itself is documented at 8 credits per generated second without video input and 12 credits per second with video input. Verify the live checkout and generation panel because offers, access, and credit rates can change.
Basic
$0
A free entry point for limited creation and model testing.
- No monthly credits listed in the current plan guide
- Thirty element-creation slots listed
- Generated content is not listed for commercial use
- Resolution, queue, watermark, and model access are limited
Standard
$6.99 introductory monthly offer
The first paid creator tier, with a higher renewal price shown by Kling.
- 660 credits per month
- Current guide shows $8.80 for the next monthly renewal
- Fast-track generation and 1080p access
- Watermark removal, video extension, and commercial-use rights listed
- Confirm the displayed checkout price before subscribing
Pro
$25.99 introductory monthly offer
A larger monthly credit pool for creators generating video regularly.
- 3,000 credits per month
- Current guide shows $32.56 for the next monthly renewal
- Priority access to new features is listed
- Includes the paid creation benefits described for Standard
- Confirm current model entitlements in the live plan selector
Premier
$64.99 introductory monthly offer
A high-volume membership with 8,000 monthly credits.
- 8,000 credits per month
- Current guide shows $80.96 for the next monthly renewal
- Paid HD, fast generation, extension, and commercial-use benefits listed
- Monthly subscription credits expire under Kling's current credit policy
Ultra
$127.99 introductory monthly offer
The largest individual plan listed in Kling's current public guide.
- 26,000 credits per month
- Current guide shows $159.99 for the next monthly renewal
- Five hundred element-creation slots listed
- Priority access and possible beta invitations are listed
- Large productions still need a per-shot credit budget
Kling O1 usage
8-12 credits per second
The model-specific generation rate published in Kling's O1 guide.
- Eight credits per second when no video is used as input
- Twelve credits per second when a video is used as input
- A five-second generation costs 40 or 60 credits
- A ten-second generation costs 80 or 120 credits
- Failed generations are subject to the platform's current refund rules
Pricing checked . Check current pricing at the source ↗
Assessment
Kling O1 strengths and limitations
Where it stands out
- Combines generation and a wide range of semantic video edits in one model
- Accepts text, image, subject, frame, and video references in a single instruction
- Saved subjects and multiple angles can improve identity and product consistency
- Prompt-based changes reduce the setup required for masks and keyframes during concept work
- Reference video can guide action, camera movement, and neighboring shots
- Useful for rapid ad, fashion, film, and social-video experimentation
- Model-specific input limits and credit rates are documented
- Kling continues the underlying Omni workflow in a newer 3.0 generation
What to consider
- Kling VIDEO 3.0 Omni is now the direct successor, so O1 should not be assumed to be the best current Kling model
- Legacy model availability and plan access can change inside the live product
- The launch claim that consistency was resolved is marketing language, not a guarantee for every frame or reference
- Faces, hands, logos, text, clothing, props, geometry, and backgrounds can drift during generation or editing
- Complex prompts with many subjects, edits, and camera instructions increase the chance that details are ignored
- Video-input generations cost fifty percent more credits per second than O1 generations without video input
- Credits are consumed per attempt, so iteration can cost much more than the final selected clip
- Membership credits have limited validity under the current credit policy
- Introductory subscription offers renew at higher prices shown in Kling's current guide
- The free tier does not include the same resolution, speed, watermark, commercial-use, or model benefits as paid membership
- Generated motion and physical interactions still require frame-level review
- Prompt editing is not a replacement for timeline-accurate compositing, masking, sound, color, and finishing
- Uploaded media requires appropriate privacy, copyright, likeness, trademark, and commercial-use rights
- Synthetic footage can create disclosure, impersonation, misinformation, and brand-safety risks
Compare
Kling O1 alternatives
The right alternative depends on the specific output, workflow, controls and budget your project requires.
Content Creator
Runway Gen-4.5
A current Runway video model for creators who want cinematic generation inside Runway's broader production platform.
Explore Runway Gen-4.5 →Content Creator
Sora 2
OpenAI's video model is an alternative for prompt-driven scenes and audiovisual generation in the Sora workflow.
Explore Sora 2 →Content Creator
Veo 3.1
Google's newer Veo model is an alternative for high-quality video generation with native audio and integration into Flow.
Explore Veo 3.1 →Questions
Kling O1 FAQs
What is Kling O1?
Kling O1 is a unified multimodal video model from Kling AI. It can generate and transform video using combinations of text, images, saved subjects, frames, and source footage.
Is Kling O1 still the newest Kling video model?
No. Kling's official VIDEO 3.0 guide says Kling VIDEO O1 was upgraded to VIDEO 3.0 Omni. New projects should compare the available O1 workflow with the current Omni model.
What can Kling O1 edit?
Its official guide shows subject and background replacement, additions, removals, color and weather changes, style redraws, effects, camera changes, and generation before or after a reference clip.
Can Kling O1 keep a character consistent?
It supports saved subjects made from several angles and multiple visual references, which can improve consistency. It cannot guarantee that identity, clothing, anatomy, or small details will remain perfect in every frame.
How many reference images can Kling O1 use?
The official guide allows up to seven images or subjects when no video is uploaded. With a video input, images and subjects combined are limited to four.
What video can I upload to Kling O1?
Kling's O1 guide specifies one source video from three to ten seconds, up to 200 MB, and no higher than 2K resolution.
How much does Kling O1 cost per generation?
The published O1 rate is eight credits per second without a video input and twelve credits per second with a video input. A ten-second result therefore costs 80 or 120 credits.
Is Kling AI free?
Kling's current public plan guide lists a free Basic tier with limited access. Paid memberships add credits, faster generation, higher resolution, watermark removal, extensions, and listed commercial-use rights.
Can I use Kling O1 videos commercially?
Kling's current pricing guide lists commercial use as a paid-plan benefit and says Basic output is not for commercial use. Users must also own or license every uploaded and depicted asset and follow the current service terms.
Does Kling O1 generate audio?
O1's defining workflow focused on unified visual generation and editing. Kling's direct successor, VIDEO 3.0 Omni, adds native audiovisual output and should be evaluated when synchronized dialogue or sound is required.
Does Kling O1 replace a professional video editor?
No. It is useful for generation, semantic changes, references, and concept iteration. Precise cuts, sound, captions, compositing, color, rights review, and delivery still belong in a conventional production workflow.
What is the best way to prompt Kling O1?
Give every reference one explicit role, describe the subject and action, define the environment and camera, state what must remain unchanged, and test one short shot before combining multiple changes.
Bottom line
Our Kling O1 verdict
Kling O1 was a meaningful step toward treating video generation and editing as one reference-aware workflow. Its mix of subjects, images, footage, and natural-language changes remains useful for short-form ideation and transformation, but it is no longer Kling's leading model. Start with VIDEO 3.0 Omni for a new production, use O1 when its specific workflow or cost is advantageous, and budget for multiple attempts plus conventional finishing.
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