"## What Kling V1 T2I Does
Kling V1 T2I is an older-generation text-to-image model maintained for backward compatibility. It generates images from text prompts and is intended for legacy integrations rather than new projects.
Key Features
- Text-to-Image Generation: Creates images from bilingual (Chinese/English) prompts up to 2,500 characters.
- Negative Prompts: Accepts a
negative_prompt(up to 2,500 chars) to exclude unwanted elements. - Wide Aspect-Ratio Support: Offers 16:9, 9:16, 1:1, 4:3, 3:4, 3:2, 2:3, and 21:9.
- Batch Output: Generate 1–9 images per request via
n. - Asynchronous Architecture: Uses a ““Create Task → Poll Result”” API workflow with Bearer-token authentication.
How to Use Kling V1 T2I
- Write a prompt (Chinese or English, up to 2,500 characters) describing the image, plus an optional
negative_prompt. - Submit a
POSTrequest to the/kling/kling-v1-t2iendpoint with yourpromptand optionalnegative_prompt,aspect_ratio,resolution, andn. - Receive an
AsyncTaskResponsewith atask_idand ““pending”” status. - Poll
GET https://api.modellix.ai/api/v1/tasks/{task_id}to monitor the task. - Once complete, retrieve and download the generated image(s).
Best Use Cases
- Legacy Integrations: Keep existing pipelines that depend on Kling V1 running.
- Backward-Compatibility Testing: Reproduce or validate older outputs.
- Maintenance Workflows: Support apps not yet migrated to newer Kling versions.
Tips for Better Results
- Prefer a Newer Model for New Work: This is a legacy model — use Kling V3 T2I for new creations unless V1 is explicitly required.
- Use Negative Prompts: Add a
negative_promptto filter out unwanted elements and improve results. - Note the 1K Limit: V1 supports 1K resolution only — choose a newer version if you need higher resolution.
- Generate in Batches: Increase
n(up to 9) to compare multiple options per request. - Write Bilingual-Aware Prompts: Both Chinese and English are supported — keep prompts clear and specific."
Parameters
| Name | Description | Type | Required | Enums |
|---|---|---|---|---|
| prompt | Image description text, supports Chinese and English | string | Yes | - |
| negative_prompt | Negative prompt describing undesired elements | string | No | - |
| aspect_ratio | Image aspect ratio | string | No | 16:9, 9:16, 1:1, 4:3, 3:4, 3:2, 2:3, 21:9 |
| n | Number of images to generate per request | integer | No | - |
| resolution | Image resolution. V1 only supports 1K | string | No | 1k |
Pricing
Unit: $/img
| Pricing |
|---|
| $0.0070/img |
