Tools & Tests · 8 min read

Grok Imagine Video 1.5 Preview: xAI Enters AI Video Generation

Grok Imagine Video 1.5 Preview by xAI — AI video generation at 720p, per-second API pricing, fal.ai and Replicate access. Bellucci Studio breaks down specs, Arena ranking, and production implications.

The Grok video model teased by Elon Musk on March 9, 2026 is now available in preview: grok-imagine-video-1.5-preview. xAI officially enters AI video generation — with transparent per-second pricing, API-first access, and early community results that are already ranking highly on Arena.ai.

Why it matters

Grok Imagine Video 1.5 is generating significant attention in the AI video space. Arena.ai rankings are moving fast — treat early leaderboard positions as snapshots, not final verdicts. For production studios, the important signal is different: xAI is shipping a video model with clear specs, public pricing, and immediate developer access through REST API and partner platforms.

Arena.ai ranking snapshot for Grok Imagine Video (May 2026 — rankings shift quickly)

Output: text or image to MP4 at 24 fps, 1–15 seconds, up to 720p. Access is API-only for now — xAI REST API plus partners including fal.ai, Replicate, Eachlabs, and PixVerse.

What actually changed

  • xAI enters video generation officially after months of teasing
  • Per-second pricing: 480p $0.08/s · 720p $0.14/s · image input $0.01/img
  • Constraints: max 720p (1280×720), 60 requests/min, rollout regions us-east-1 and eu-west-1
  • Text-to-video and image-to-video via model string grok-imagine-video-1.5-preview

API access and partner platforms

Official documentation: docs.x.ai/developers/models/grok-imagine-video-1.5-preview. For image-to-video, fal.ai exposes the model at fal.ai/models/xai/grok-imagine-video/v1.5/image-to-video/api. Replicate, Eachlabs, and PixVerse also list partner integrations.

Model string : grok-imagine-video-1.5-preview
Input      : text prompt OR image + prompt
Output     : MP4 · 24 fps · 1–15 s · up to 720p
Pricing    : 480p $0.08/s · 720p $0.14/s · image $0.01/img
Rate limit : 60 req/min · regions us-east-1, eu-west-1

Community tests (not in-house yet)

We have reviewed official documentation and Arena rankings. In-house tests are planned: one text prompt and one image-to-video run via xAI API or fal.ai, compared against Sora, Veo, and Kling on motion coherence and subject consistency. Until broader API rollout, community samples are the best public signal.

Community sample — Grok Imagine Video output (via X)

Verdict for AI film production

A major new video model with transparent pricing and immediate API access is always worth integrating into your production radar — even before the first in-house benchmark.

Grok Imagine Video 1.5 is news worth covering fast: a major new video model, clear pricing, and developer access on day one. For Bellucci Studio pipelines, the next step is a controlled benchmark against our current stack (Runway, Kling, Veo) on brand-film use cases — motion quality, face consistency, and 720p upscale behavior in post.

Need AI campaign films or commercial production with the latest models? Bellucci Studio integrates cutting-edge AI video tools into luxury and fashion brand pipelines — from concept to delivery.