import requests, time headers = {"Authorization": "Bearer " + AIMLAPI_KEY} job = requests.post( "https://api.aimlapi.com/v2/video/generations", headers=headers, json={ "model": "runway/gen4_aleph", "prompt": "A serene timelapse of clouds over a mountain range" }, ).json() gid = job["id"] while True: res = requests.get(f"https://api.aimlapi.com/v2/video/generations?generation_id={gid}", headers=headers).json() if res.get("status") in ("completed", "error"): break time.sleep(5) print(res["video"]["url"])
const headers = { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }; const job = await (await fetch("https://api.aimlapi.com/v2/video/generations", { method: "POST", headers, body: JSON.stringify({ "model": "runway/gen4_aleph", "prompt": "A serene timelapse of clouds over a mountain range" }), })).json(); let res; do { await new Promise((r) => setTimeout(r, 5000)); res = await (await fetch(`https://api.aimlapi.com/v2/video/generations?generation_id=${job.id}`, { headers })).json(); } while (!["completed", "error"].includes(res.status)); console.log(res.video.url);
# submit the generation — the response contains the job "id" curl -X POST https://api.aimlapi.com/v2/video/generations \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"runway/gen4_aleph","prompt":"A serene timelapse of clouds over a mountain range"}' # then poll until status is "completed" — video.url holds the result curl "https://api.aimlapi.com/v2/video/generations?generation_id={id}" -H "Authorization: Bearer $AIMLAPI_KEY"
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Output | |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
Gen 4 Aleph This page | Video generation | |||
| Video generation | ||||
| Video generation | ||||
| Video generation | ||||
| Cinematic video + native audio |
Gen 4 Aleph takes image, text, video as input and returns video.
Gen 4 Aleph became available on December 4, 2025.
Gen 4 Aleph is priced at $0.195 / sec.
Gen 4 Aleph is billed per generation — a fixed charge per output rather than by prompt length.
Yes, Gen 4 Aleph accepts image input as well as a text prompt.
Gen 4 Aleph was built by Runway.
Use runway/gen4_aleph as the model id on AI/ML API.
Yes. Gen 4 Aleph is served through AI/ML API, so the same key and endpoint format used for other models applies.
Gen 4 Aleph is Runway's video generation model, described as offering enhanced realism and creative control.
It is a video generation model, taking image, text, and video inputs to produce video output.