Grok Imagine Video 1.5 adds fal and Venice API access after xAI rollout

• xAI quietly turned Grok Imagine Video 1.5 from an arena result into a documented API, with arena's docs link post pointing to an xAI model page that lists the preview model name, alias, 60 RPM limit, and us-east-1 plus eu-west-1 availability.
• Third-party access showed up almost immediately: fal's launch post paired with fal's model page exposed an image-to-video endpoint with 1 to 15 second clips, 480p and 720p output, and per-second pricing.
• AskVenice's launch post added a second distribution channel and framed the model as available on Venice with full privacy, which makes this less of a console-only xAI release.
• The headline ranking claim came from arena's leaderboard post, which said Grok Imagine Video 1.5 Preview jumped 52 points over the prior Grok video model and took the #1 spot on Image-to-Video Arena.
• That #1 story already has pushback: koltregaskes argued the launch ranking does not match side-by-side comparisons they had seen, echoing the usual complaint that fresh Arena scores can run hot before settling.

You can check the xAI docs, browse the broader xAI models pricing table, inspect the Image-to-Video Arena leaderboard, and hit the fal endpoint page. One odd detail surfaced fast: xAI's own docs price the preview at $0.08 per second, while fal breaks that out as $0.08 per second for 480p and $0.14 per second for 720p.

The official xAI model page is thin, but it does pin down the basics developers actually need: the slug is grok-imagine-video-1.5-preview, the dated alias is grok-imagine-video-1.5-2026-05-30, output is priced at $0.08 per second, and rate limits are capped at 60 requests per minute.

The same page says the preview is available in us-east-1 and eu-west-1. According to testingcatalog's post, that API rollout coincided with xAI promoting the model's new Arena position.

fal's model page makes the integration more concrete than xAI's docs. fal exposes an image-to-video endpoint, takes a required prompt and image_url, defaults to 6-second clips, and allows durations up to 15 seconds.

The pricing split also lives here in plain text:

• 480p: $0.08 per second
• 720p: $0.14 per second
• Input image: $0.01 each
• Audio: included if generated

That is the first place the preview looks like normal provider inventory instead of a leaderboard artifact.

Venice posted the model later the same day and described it as fully private. The tweet is the evidence here, not a public spec sheet, but it matters because it gives Grok Imagine Video 1.5 a second non-xAI surface within hours of the docs going live.

Between xAI's own API page, fal's hosted endpoint, and Venice's listing, the story changed from "new model topped Arena" to "new model is already moving through standard video-generation pipes."

The public Image-to-Video Arena leaderboard showed Grok Imagine Video 1.5 Preview at 1473±9, marked Preliminary, ahead of Bytedance at 1467±11. The same leaderboard snapshot placed the older xAI Grok video entry at 1421±6, which matches Arena's 52-point improvement claim.

That early lead is already contested. koltregaskes said direct comparisons they had seen did not support Grok beating Seedance 2.0, and argued that LM Arena style launch scores often cool off after a few weeks.