"Castle Walls," a Turkish historical drama billed as the first series made end to end with artificial intelligence to premiere on a major streaming service, is on Prime Video, The Guardian and Variety report.

The show was produced by Turkish studio Ay Yapım through its Singapore-based arm, AI Yapım. It has two short episodes and is set at Alamut Castle in what is now Iran, in the 11th century, The Guardian reports. Variety reported in August that the series was launching on Prime Video.

Humans still played key roles. The scripts were written by Turkish TV writers Kerem Deren and Çisil Hazal Tenim, and the show is dubbed by human voice actors. "Acting performances are not AI-generated," the company said, according to Variety.

Ay Yapım said it used a video model called AYDNA, trained only on its own licensed shows. Variety reports the company named other tools used in development, including ChatGPT, Midjourney, Runway, Veo and Kling. "This is not a production that bypassed human skill. It is one that used AI to amplify it," the company said.

The Guardian's critic, Luke Buckmaster, gave the show a harsh review. He wrote that its people look "plasticky and spectral" and that the dialogue falls flat. He also wrote that the technology "is amazing and will profoundly alter the state of motion pictures," and called for artists to use AI to enhance, not replace, human work.

Ay Yapım is known for Turkish dramas including "Endless Love," which won an International Emmy. Variety reports that Amazon MGM Studios announced in May three animated AI series for Prime Video, with no release dates set.

What we know: Castle Walls, made largely with AI tools, is streaming on Prime Video and has drawn a harsh Guardian review.
What we don't: How many people are watching it, and how other critics judge it.