Anthropic launched yesterday Claude Fable 5.2 Since then, I believe many people have already used this new model, and it’s okay if you haven’t tried it yet—impressive examples have been appearing online. For example, the well-known foreign YouTube channel Matthew Berman used Fable 5.2 to develop multiple projects, the most stunning being a AAA Gears of War clone. He only wrote three lines of prompts and had the AI use Unreal Engine 5 to create a Gears of War clone level. Not only do the graphics look decent, the character can actually be controlled and shoot, and can even hide behind cover to attack enemies.
However, as expected, the price isn’t pretty either (Fable 5.2 is still expensive). Converted at API pricing, the estimated cost behind this level is close to $15,000.
Claude Fable 5.2 built a playable Gears of War level from just a three-line prompt! But the estimated API cost was close to $15,000.
YouTuber Matthew Berman recently uploaded a hands-on test video of Fable 5.2. He got early access before launch and said he had already burned through more than 100 billion tokens during testing. In the video, he shares more than 15 projects built with Fable 5.2, including a Gears of War clone, a DaVinci-like video editing software, an Android mini-game, and more. And the video opens with a very impressive Gears of War clone level.
The instructions he gave the AI were very simple—just three lines, roughly: use Unreal Engine to make a clone as close as possible to Gears of War: E-Day. It only needs one level, but the visuals, gameplay, and character completeness all have to match the official version that has just launched. In the video, Berman said he has always been in the habit of “deliberately not writing prompts too specifically,” leaving how enemies behave and what details to place in the scene up to the model to decide:
Another key was that he enabled Claude Code’s “Ultra Code” mode and then let the AI run on its own without telling it step by step what to do next. Ultra Code dispatches a large number of sub-agents to work in parallel at once, essentially having several AIs divide the work to develop this project together.
Although it’s only one game level, because it had to be close to Gears of War: E-Day, Claude also spent a lot of time on it—though it finished in just seconds or minutes. Berman said the level took “several days” to complete, with a total execution time of 43 hours 48 minutes.
With just a three-line prompt, Fable 5.2 actually built a clone level that not only looks good but also includes taking cover, shooting, and even teammate rescues.
In the video, Berman demonstrates a few minutes of gameplay: not only can you move freely, run, aim, and shoot, but the controls are also quite smooth when running around the streets:
It even has a cover system: characters can hide behind barricades and then lean out to shoot at enemies—this is the core combat style of the Gears of War series:
It also brings back the series’ signature Active Reload: when reloading, a moving indicator appears on screen; press at the right moment to finish reloading faster, but press at the wrong time and the gun jams:
Enemies will also actively attack and engage in firefights with the player, rather than just standing in place as targets. Berman also described it as a “full-fledged battle”:
Even if you accidentally die, your teammates will run over to save you:
Such a great game naturally also required consuming a large number of Tokens to complete. In the end, Berman showed that the total Tokens consumed reached 8.63B. If calculated at the developer’s API price, the estimated cost would be $14,710, or about NT$480,000:
However, not all AI-generated works have to cost this much; some of the other tests for this video weren’t as expensive:
- A Fall Guys-style multiplayer game: over 9 billion Tokens, about 71 hours, estimated at around $13,000.
- Unreal Engine Tokyo city scene: approximately 6.72 billion tokens, approximately 70 hours, estimated at around USD 11,000.
- Physics simulation of a bullet piercing a water balloon: about 41 million tokens, about 2.5 hours, estimated $91
- 3D-printed load-bearing tower design: about 10 million tokens, just over an hour, estimated at $37
Full video:
Source: KOCPC Chinese