Run Kling o3 Image To Video API on fal
Kling O3 Standard image-to-video on fal.ai. Animate a transition between a start frame and an optional end frame, guided by text prompts. The more affordable sibling to O3 Pro, sharing the same model generation at a lower price point.
Features
- Videos up to 15 seconds
- Start + end frame support: animate the transition between two images
- Multi-prompt support for multi-shot narrative control
- Native audio generation (Chinese and English; other languages auto-translated)
- Strong subject and text consistency
- Scene cuts and ultra-high-definition storyboards
Note: This endpoint uses (not ) — this differs from v3 endpoints.
Pricing
| Audio off | Audio on |
|---|
| Per second | $0.084 | $0.112 |
| 5s example | $0.42 | $0.56 |
| 15s example | $1.26 | $1.68 |
Generation Speed
In testing, O3 Standard completed a 5s generation in ~94 seconds, compared to ~318 seconds for a comparable O3 Pro job. Standard is roughly 3x faster than Pro.
Quick Start
Install
Submit a request
Python
| Parameter | Type | Default | Description |
|---|
| | — | Required. Start frame image URL |
| | — | Text prompt (required if not set) |
| | — | Optional end frame image URL |
| | | Video length in seconds: – |
| | — | Generate native audio |
| | — | Multi-shot prompt list (overrides ) |
| | | Required when using |
Start + End Frame
Supply both and to animate a transition between two specific frames. The model interpolates the motion between them while following your text prompt.
Multi-Prompt (Multi-Shot)
Divide the video into multiple shots, each with its own prompt and duration:
Output
Infrastructure
- Concurrency alias: (shared across all v3/o3 endpoints)
- Default concurrency limit: 1 per user (overrides available on request)
- For long jobs, use + webhook rather than blocking
O3 Standard vs. O3 Pro
| O3 Standard | O3 Pro |
|---|
| Price (audio off) | $0.084/s | $0.112/s |
| Price (audio on) | $0.112/s | $0.168/s |
| Generation speed (5s job) | ~94s | ~318s |
| Custom element support | No | Yes |
| Use case | Speed + cost efficiency | Maximum quality |
| Endpoint | Description |
|---|
| O3 Pro tier, higher quality, custom elements |
| Kling v3 Pro, cinematic output |
| Kling v3 Standard |
| O3 Standard, text-to-video |
fal-ai/kling-video/o3/standard/image-to-video
