Cosmos Predict 2.5 Text to Video | Powerful Text-to-Video API

Cosmos Predict 2.5 Text-to-Video

Cosmos Predict 2.5 Text-to-Video generates video from text prompts using NVIDIA's 2B Cosmos Post-Trained Model. Describe a scene in natural language — the model creates smooth, cinematic video clips with realistic motion, lighting, and atmospheric effects.

Why Choose This?

NVIDIA Cosmos architecture Powered by NVIDIA's 2B parameter Cosmos Post-Trained Model for high-quality video generation.
Pure text-to-video Generate videos from text descriptions alone — no reference images required.
Cinematic quality Produces realistic scenes with natural lighting, motion, and environmental effects.
Prompt Enhancer Built-in tool to automatically improve your scene descriptions.
Simple pricing Flat $0.25 per video, no complex calculations.

Parameters

Parameter	Required	Description
prompt	Yes	Text description of the desired scene and motion

How to Use

Write your prompt — describe the scene, characters, motion, and atmosphere in detail.
Use Prompt Enhancer (optional) — click to automatically refine your description.
Run — submit and download your generated video.

Pricing

Output	Cost
Per video	$0.25

Best Use Cases

Cinematic Scenes — Generate atmospheric street scenes, landscapes, and urban environments.
Storytelling — Create visual narratives from written descriptions.
Concept Visualization — Bring creative ideas to life without reference images.
Social Media Content — Produce engaging short-form videos from text.
Marketing & Ads — Generate promotional video content quickly.

Pro Tips

Be specific and descriptive — include details about characters, actions, environment, lighting, and weather.
Use cinematic language like "autumn leaves falling," "rainy street," or "golden hour lighting" for atmospheric results.
Describe camera movement if desired (e.g., "tracking shot," "slow pan").
Try the Prompt Enhancer to automatically improve your descriptions.
Include mood and atmosphere details for more evocative results.

Notes

Prompt is the only required field.
Ensure your prompts comply with content guidelines.

Related Models

Cosmos Predict 2.5 Image-to-Video — Generate video from images.
Cosmos Predict 2.5 Video-to-Video — Transform existing videos with text prompts.
Wan 2.6 Text-to-Video — Multi-resolution text-to-video with flexible duration.

Cosmos Predict 2.5 Text To Video API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/cosmos-predict-2.5/text-to-video with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Cosmos Predict 2.5 Text To Video below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/cosmos-predict-2.5/text-to-video" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light"
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("wavespeed-ai/cosmos-predict-2.5/text-to-video", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light"
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/cosmos-predict-2.5/text-to-video",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light"
}
)

print(output["outputs"][0])  # → URL of the generated output

Cosmos Predict 2.5 Text To Video API — Frequently asked questions

What is the Cosmos Predict 2.5 Text To Video API?

Cosmos Predict 2.5 Text To Video is a WaveSpeedAI model for video generation, exposed as a REST API on WaveSpeedAI. Cosmos Predict 2.5 Text-to-Video generates video from text prompts using NVIDIA's 2B Cosmos Post-Trained Model. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Cosmos Predict 2.5 Text To Video API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/wavespeed-ai/cosmos-predict-2.5-text-to-video.

How much does Cosmos Predict 2.5 Text To Video cost per run?

Cosmos Predict 2.5 Text To Video starts at $0.30 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Cosmos Predict 2.5 Text To Video accept?

Key inputs: `prompt`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/wavespeed-ai/cosmos-predict-2.5-text-to-video.

How do I get started with the Cosmos Predict 2.5 Text To Video API?

Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.

Can I use Cosmos Predict 2.5 Text To Video outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (WaveSpeedAI). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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