Jailbroken PS5 Runs Local LLMs via llama.cpp with OpenAI-Compatible APIs

68AI Score

Executive Summary

The PS5LM project enables jailbroken PlayStation 5 consoles to run any GGUF model natively on the RDNA 2 GPU using llama.cpp's Vulkan backend. It transforms the console into a private local inference server, exposing OpenAI and Anthropic-compatible APIs for network devices while integrating decision models for low-latency structured outputs.

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Contents4 sections

PS5LM

Your PS5 runs the language model. Every device on your network uses it. llama.cpp on the console's GPU, with OpenAI and Anthropic APIs and a screen made for the TV.

Get the app · Website · Get started · Issues

New: decision models, powered by Ollaya. PS5LM now runs Jev-like decision models (d1, Clef, OpenJev and more) on the GPU and answers the same /v1/systemone API as Ollaya: typed decisions with calibrated probabilities, in a fraction of a second.

PS5LM is for anyone with a jailbroken PS5 who wants a private model server at home. It loads a GGUF model onto the console's GPU and serves it to your laptop, your phone and your coding tools. It needs no PC while it runs, no cloud and no account.

Qwen 3.5 9B answering requests from a laptop on a PS5 Slim. Click for the video.

Home, Models, Console, API and Settings on the TV.

A model server under your TV

It runs on the GPU. llama.cpp's Vulkan backend on the console's RDNA 2 GPU, with 11.4 GB of the shared memory for the model and its context. Every architecture and quantization llama.cpp knows comes along.
It answers your network. OpenAI's /v1/chat/completions, Anthropic's /v1/messages (Claude Code works against it) and a chat page in any browser. Point a client at http://<console>:8081 and use any model name: the loaded one answers.
It decides, too. Load a decision model and the console answers TypeSafe's /v1/systemone: choice, score and yes-or-no questions about text and images, the API Ollaya serves on a PC.
It shows its work. Every request streams across the TV as a chat: which device asked, what it asked, and the reply as it is written. Square sends a demo and Triangle opens a keyboard, so the console can be tried from the couch.
It watches the console. A Console page charts temperature, power, GPU and CPU load over the last two minutes or the last hour, beside a table of every reading.
It picks what fits. The planner reads each GGUF and gives it the longest context and best cache that fit the memory free. A Suggested list holds models measured on the console, and the app downloads from Hugging Face by itself, to internal storage, the M.2 drive or a USB drive.
It reads images. Models with an image projector (Gemma 4, MiniCPM-V, d1) take pictures in chat and in decisions.

Model	Size	On a PS5 Slim
Qwen 3.5 0.8B, Q4_K_M	0.5 GB	207 tokens a second
Qwen 3.5 9B, Q4_K_M	5.3 GB	55 tokens a second
Qwen 3.8 27B, UD-Q2_K_XL	9.2 GB	about 20 tokens a second, 64k context
d1 Omni 600M, a decision model	1.1 GB	3 questions in 0.3 s; a 720p image and 7 questions in 2.9 s

Decision models, powered by Ollaya

Ollaya runs open decision models on a PC the way Ollama runs language models. PS5LM brings the same idea to the console: a decision model reads a state and answers typed questions in one forward pass, with no text generated.

curl http://<console>:8081/v1/systemone -H 'Content-Type: application/json' -d '{
  "state": "I was charged twice this month. Refund me or I cancel.",
  "questions": {
    "intent": {"type": "choice", "instructions": "What does the customer want?",
               "criteria": {"refund": null, "information": null, "cancel": null}},
    "angry":  {"type": "noul", "instructions": "Is the customer angry?"}
  }
}'

The Suggested list has d1 Omni 600M, d1 3B and Clef Flash. Any GGUF that carries llama.cpp's decision metadata loads the same way, and the app labels it a decision model.

Try it

You need a PS5 on firmware 7.00 to 13.60, jailbroken, with these payloads loaded:

Payload	For
kstuff-lite	the kernel patches homebrew runs on	required
etaHEN	homebrew support	required
ShadowMountPlus	puts PS5LM on the home screen from `/data/homebrew`	required
elfldr (port 9021)	temperature, power and real free space, through ps5-exporter	recommended
ftpsrv (port 2121)	installing the app, copying models from a PC	recommended

Download ps5lm-app-vX.Y.Z.zip from the latest release and unzip it.
Copy the PPSA99575 folder to /data/homebrew over FTP. ShadowMountPlus adds PS5LM to the home screen.
Open PS5LM, go to Models > Suggested and get a model. Or copy a .gguf to /data/PS5LM/models, or to PS5LM/models on a USB drive.
Load it. Once Home says Ready, open http://<console>:8081 in a browser, or point your OpenAI or Anthropic client at it.

To update, copy the new folder over the old one. Settings, models and downloads stay in /data/PS5LM. Using it from coding tools (opencode, Codex, Claude Code) is in docs/CLI.md.

Where	Button	Does
Everywhere	L1 / R1	Home, Models, API, Console, Settings
Home	Cross	change the model
Home	Square / Triangle	send a demo request / type a message
Models	D-pad, Cross	choose a section and a model; load, unload or download it
Models, Search	L2 / R2, Square	change the search; check whether a file fits
Models, Downloads	Cross, Square	pause or resume; cancel (press twice) or clear
Console	L2 / R2	the last two minutes / the last hour
Settings	D-pad, Cross	choose a category and a row; flip it, or pick from its list
Settings, Diagnostics	Square, Triangle	app or server log; errors only

Want to tinker?

C++ on ps5-homebrew-ui, llama.cpp with ggml-vulkan on PS5_Vulkan's RADV, built on Linux.

Building · Console notes · Porting · Research · Models that fit · Roadmap · Changelog · The original payload

（注：更多技术实现细节与完整 API 文档请查阅原项目 README）