Local Laya vs Cloud Jev on the Same Snake Game

Post on X

Views: 24,257
Likes: 150
Reposts: 23

Read from X on 24 Sep 2026. Counts change daily.

Reported by the author

Laya speed: 86.5/s86.5 decisions/secx.com
Jev speed: 3.2/s3.2 decisions/secx.com
Local vs cloud: ~20x fasternearly 20x fasterx.com

Simplifying AI ran the same Snake game with two models making the same typed decisions, each for a 30-second free run. On the left is a local, open-source 421M-parameter Laya checkpoint. On the right is Jev 1.13.0 called through TypeSafe’s cloud API.

Laya scored 46 with a final length of 52 at 86.5 decisions per second. Jev scored 1 with a length of 7 at 3.2 decisions per second. In a separate test on an M5 Pro, the author measured a median latency of 15.3 ms for Laya running locally against 298.1 ms for Jev over the cloud, “nearly 20x faster”.

The post puts the gap down to the network. Laya runs on the device in about 1 GB of memory, while Jev waits for a cloud round trip at every step.

Open on X

View the post on X

PrimitivesChoice

Use casesReal-time control

Jev Ultrafast (Browser Use)

Browser Use's fast browser agent where Jev picks the operation and the DOM element in a single request; a small LLM is only invoked to write text when typing is required. Demoed on a Google Flights search.

browser-useOpen

19k starsFlight search 7.1 s

ProjectTyped tool dispatch+2

Laya-MLX

An independent MLX port of Laya for Apple Silicon, 13.4ms median for a short English decision and 7.4ms on the multilingual checkpoint, with a Snake demo that plays at up to 75 moves per second under 1GB of memory.

mizorewwwOpen

6.1k starsShort decision 13.4 ms P50Snake demo 75.4 moves/s

ToolReal-time control

Agent Desktop

Rust desktop automation that reads apps through the OS accessibility tree instead of pixels. Its jev-desktop skill takes a plain-language goal and has Jev pick one operation and one target element per turn, so the 150-element tree never enters the agent's context.

lahfirOpen

1.6k starsToken reduction 78-96%

ProjectTyped tool dispatch+1

Laya-CoreML

Core ML ports of all three Laya checkpoints for Apple Silicon, reaching 4.98ms P50 on the Neural Engine for a short multilingual decision, with a Snake demo sustaining about 50 decisions per second.