Strata 发布 v0.1.33。该版本将 strata-vision.exe 重新改为可移植构建(AVX2、无 OpenMP),修复 0.1.32 在缺少 AVX-512 的 CPU(多数 Zen 4 之前的 AMD Ryzen 及部分 Intel 桌面 CPU)上出现“非法指令”或视觉编码器无法启动的问题,同时保留 0.1.32 的 RTX 20 代码。setup 由强制改为推荐:用户选择的更长上下文(如 --context 262144)、多 GPU 和 --resident-budget-gib 预算会被保留并附风险提示;低 RAM 模式下上下文不再计入 RAM。新增 --kv-streaming on|off|auto。多 GPU 模式下专家经 OS 文件缓存读取,据两名用户测量快 1.3-1.6 倍,但长提示下 RAM 可能被占满。另修复 V100 层拆分注意力内核、--expert-cache-per-layer、服务器 400 错误处理及视觉编码器独立 GPU 等多项问题。
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Official release notes (https://github.com/Niko1221/Strata/releases/tag/v0.1.33)
**The image encoder runs on every CPU again, and setup recommends instead of forcing: a longer context, more GPUs or a bigger RAM budget you choose is kept, with a note about the risk.**
**Images (#411, #412):** 0.1.32's ready-made `strata-vision.exe` was built with AVX-512 and OpenMP and stopped at
start on CPUs without AVX-512 (most AMD Ryzen before Zen 4, many Intel desktop CPUs): "illegal instruction" or "the
vision encoder did not start". 0.1.33's is built portable again (AVX2, no OpenMP), like 0.1.31's, and keeps 0.1.32's
RTX 20 code. Running `START-HERE.bat` once installs it.
**Setup recommends, you choose (#406, #403, #364, #384):**
- **Context:** setup still recommends 128K for IQ3_XXS / IQ3_S on a 64 GB PC, but a longer one you pick (or
`--context 262144`) is kept, with a note that it may run out of RAM under load. An update keeps your earlier
context, and in the low-RAM mode the context no longer counts against RAM.
- **Several GPUs on a low-RAM PC:** setup asks whether to use one GPU (the default: experts kept in RAM, steady RAM
use) or all of them (experts read through the OS file cache: 1.3-1.6x faster in two users' measurements, but RAM
can fill up during long prompts). `--gpus 0,1` is honoured. The engine runs `--resident-experts` with a layer split
as `--mmap-experts`, with a warning, instead of refusing to start.
- **RAM budget (`--resident-budget-gib`):** a budget larger than the free RAM no longer fails the safety check after
the engine lowers it (#403), and a budget that can't be kept at all is a warning. Setup takes `--resident-budget-gib N`.
- Setup asks instead of stopping when a model is above its RAM estimate, or a named card has under 8 GB for a
split. `--yes` alone keeps the recommended choices. `--kv-streaming on|off|auto` is new.
- With `--yes` or Enter for every question, setup writes exactly the same config as 0.1.32 (checked on 23
PC/model combinations).
**Fixes:**
- V100 (sm_70) in a layer split: the prompt's attention uses the kernel that card supports again (#371, AxalotLDev).
- `--expert-cache-per-layer` starts on native packs and fills every layer (#369, dag08).
- `STRATA_GR_V3=1` (opt-in) keeps the default read on cards where its two-half split fails its checks (Turing; #375,
kenh0u); its test compares within float rounding (#379, sergqwer).
- Server: a request the chat template refuses ("No user query found in messages.") gets a 400 error instead of a
dropped connection (#365); a temporary image file is removed when the encoder fails (#352, Tsury); the image encoder
can run on its own GPU, `"cuda_device"` in the vision section (#408, Efs-O).
- Setup stops when its input ends instead of answering yes, e.g. to installing the build tools (#393, #398 by
Bortlesboat); a setup test no longer fails on a PC with CUDA installed (#414, rwkeyes).
- Docs: byte-identical greedy repeats through the server also need `--prompt-cache 0 --adapt-swaps 0` (#410).
**Checked before the release:**
- **Same answers as 0.1.32 on all four quants** (Q2_0, IQ3_XXS, IQ3_S, the Coder), 10/10 each with a fixed cache.
The prompt path's internal state at 4K and 20K tokens is identical too. The default speed is unchanged within noise
(5-pair A/B, same expert slots). The merged release was checked again on Q2_0 and IQ3_XXS.
- **The image encoder:** no AVX-512 instructions and no OpenMP (the same profile as 0.1.31's, which ran on CPUs
without AVX-512), and the image test passes behind the server (greedy colour and three sampled descriptions).
- **Real use at a 57K-token prompt** through the server on Q2_0 and the Coder.
- **Linux (WSL, RTX 5070):** Q2_0 byte-identical to 0.1.32 (10/10), and the default settings pass.
- **AMD (R9700):** the HIP build and its tests. All pass except the two that need a model fixture or an AVX-512 CPU,
as in 0.1.32.
- **Tests:** setup's tests (120, including a golden check that `--yes`/Enter configs are byte-identical to 0.1.32's
on 23 PC/model combinations), the server's (141), the tools', and the parity tests of the changed kernels (QSA
prompt attention, the hyper-connection read with and without V3, the per-layer expert cache).
- **#403:** an engine started with `--resident-budget-gib 500` lowers the budget with its margin, starts and answers.
**Updating:** get the latest files (`git pull`, or download and unzip anywhere), then run `START-HERE.bat` (Linux:
`./setup.sh`). Setup installs engine 0.1.33.
The ready-made Strata engine for Windows (RTX 20 / 30 / 40 / 50: sm_75, sm_86, sm_89, sm_120 + PTX), CUDA 13.0.
You don't need to download this yourself: `START-HERE.bat` fetches it (and NVIDIA's cuBLAS from pip), so no compiler
or CUDA Toolkit is needed, only an NVIDIA driver 580 or newer.
Contents: `strata.exe` (the engine), `strata-vision.exe` (the optional image encoder), `BUILD.json`.
Repository README (current repository documentation, not release changes)
Strata
Run a 125-billion-parameter AI model on a normal gaming PC
one NVIDIA card (12-24 GB) + 64 GB of RAM · Windows or Linux · one click to install
A voxel pagoda garden, 1 shot prompt running on an RTX 5070 with Strata (IQ3_S, 128K context) ·
full video (49 s)
Strata runs **[Qwen3.8-Flash-Next](https://huggingface.co/Qwen/Qwen3.8-Flash-Next)** - a large, smart AI model that
normally needs a server - on your own PC. It writes its answers at **60-95 tokens per second** (a token is about ¾
of a word): faster than you can read.
- **Free and open source.**
> **Jump to:** [How fast?](#how-fast-is-it) · [Which model?](#which-model-should-i-pick) · [Install](#install) ·
> [Using it](#using-it) · [Problems?](#something-went-wrong) · [How it works](#how-does-it-work) ·
> [All the details](docs/DETAILS.md)
---
## How fast is it?
Measured on an RTX 5070 (12 GB), a Ryzen 5 7600 and 64 GB of RAM:
| Size | Writes answers (short chat) | Writes answers (128K context) | Reads your prompt |
| --- | ---: | ---: | ---: |
| **Q2_0** | 93 tokens/s | 74 tokens/s | 2,170 tokens/s |
| **IQ2_XS** | 79 tokens/s | 63 tokens/s | 2,090 tokens/s |
| **IQ3_XXS** | 62 tokens/s | 49 tokens/s | 1,750 tokens/s |
| **IQ3_S** | 53 tokens/s | 46 tokens/s | 1,620 tokens/s |
| **Coder** (IQ1_M) | 55 tokens/s | 43 tokens/s | 2,180 tokens/s |
- **Writes answers** = how fast the reply appears (tokens per second).
- **Reads your prompt** = how fast it takes in what you send (long documents, code, chat history), measured on a
32K-token prompt; a 4K prompt reads at 910-1,580 tokens/s. A 32K prompt takes about 15 seconds with Q2_0.
A card with more VRAM is faster, because more of the model fits on the GPU: an RTX 3090 (24 GB) should do roughly
100-140 tokens per second. All measurements, long-context numbers and estimates for other cards are in the
[details](docs/DETAILS.md#speed-measured).
Every PC is different: `START-HERE.bat --calibrate` measures a few engine settings on yours and keeps the fastest
(about 5-10 minutes; on the PC above it made the Coder 7% faster).
Measured Strata on your own PC? See [Community benchmark results](docs/COMMUNITY_BENCHMARKS.md)
for a report template and how to share your results in a pull request.
**Two or three NVIDIA cards?** Just run `START-HERE.bat`: it lists your cards, says which ones Strata can use, and
asks whether to share the model across them (recommended when two can). An install made on one card asks once at
its next start. Or choose yourself: `START-HERE.bat --gpus 0,2` (both, remembered), `--gpus all`, or `--gpu 0` (one
card, this start only). Each card keeps the experts of its own layers, and prompts flow through the cards in a
pipeline: on an RTX 5080 + RTX 3090 prompts were read 18-20% faster than on the 5080 alone, decoding on par.
Every card must be an RTX 20 series or newer with 8 GB or more. See [docs/MULTI_GPU.md](docs/MULTI_GPU.md).
## Which model should I pick?
**The size** (the same model, compressed more or less):
| Model | RAM+VRAM Requirements | Speed | Quality |
| --- | ---: | --- | --- |
| **Q2_0** | 37.6 GB | fastest | good |
| **IQ2_XS** | 39.2 GB | fast | better (**recommended**) |
| **IQ3_XXS** | 47.0 GB | slower | great |
| **IQ3_S** | 54.8 GB | slowest | best: matches the full model on the published tests (original model only) |
**Will it fit?** Shard 1 is the part of the model that gets loaded when it starts: its experts go into your **RAM**,
the rest onto your graphics card (the second shard, a 29 GB lookup table, stays on the SSD). So it fits when your
**RAM is at least shard 1 + about 10 GB** for Windows and your other programs. With 64 GB of RAM every size fits
(IQ3_S with little else open); with 48 GB, Q2_0 and IQ2_XS. A bigger graphics card makes it faster, but it doesn't
lower the RAM needed.
**The version:**
- **Qwen3.8-Flash-Next** - the original.
- **[Coder](https://huggingface.co/ISTA-DASLab/Qwen3.8-Flash-Next-GSQ-RCO-Coder-GGUF)** - ISTA-DASLab's coding
version: half of the experts removed, keeping the ones that code, tool use and images need (91% of the full model's
SWE-bench Verified score, 99% of LiveCodeBench, by its authors). One size (IQ1_M: its experts stored like IQ3_S):
shard 1 is **29.6 GB**, so it fits a PC with **32 GB of RAM**, runs 262K context on 64 GB, and reads long prompts
the fastest of all. Weaker outside coding.
- **[Swift 1.5](https://huggingface.co/ukisai/Swift-1.5-Qwen3.8-Flash-Next-GSQ-RCO-GGUF)** - a fine-tune by UkisAI
that thinks much shorter before answering, so you get the answer sooner, with about the same quality. Same speed per
token, and about the same RAM as the same size of the original (no IQ3_S). Its own license applies (see its page).
Not sure? Take **IQ2_XS** - or the **Coder** if you mainly write code, or have 32-48 GB of RAM. You can add another
one later with `SETUP.bat` (the same as `START-HERE.bat --setup`; on Linux `./setup.sh --setup`).
For **OrcaRouter's Flash-Next Uncensored IQ3_XXS**, see the [manual compatibility setup](docs/ORCA.md).
It needs an explicit packing conversion and is not an installer menu option.
**Unsloth's 4-bit UD-Q4_K_XL** (experimental) is the fourth version in setup's menu (`--family unsloth`): the closest
to the full model, but a 111 GB download whose 77 GB of experts do not fit in RAM. Strata keeps your RAM minus 24 GB
of them in RAM and reads the rest from the SSD while it answers: 7-8.5 tokens/s on a 64 GB PC with a 12 GB GPU, several
times slower than the sizes above, and long prompts are slow. It needs 48 GB of RAM or more, an NVMe SSD and one
NVIDIA GPU (no images yet). Details and measurements: [UD-Q4_K_XL](docs/UNSLOTH_Q4.md).
An **AMD Radeon RX 7900 XT / XTX, RX 9070 / 9070 XT or Radeon AI PRO R9700 on Linux** works too (experimental; the
RX 7800 XT / 7700 XT and RX 9060 XT were validated by their owners; the RX 6800 / 6900 series, gfx1030, is community-reported):
`./setup.sh --backend hip`, chosen by itself on a PC with no NVIDIA card Strata can use. It installs ROCm without sudo
and compiles the engine (no images yet; several cards with `--gpus`). Details: [AMD HIP](docs/AMD_HIP.md).
## Install
**You need:** an NVIDIA RTX 20, 30, 40 or 50 card with 12 GB of VRAM or more (RTX 20 since 0.1.27), enough RAM for the size you pick (above;
a big GPU makes up for less RAM - the [low-RAM mode](docs/DETAILS.md)),
~80 GB of free disk space (an SSD makes the first start much faster), and Windows 10/11 or Linux. The only thing you
install yourself is a current **NVIDIA driver** ([nvidia.com/drivers](https://www.nvidia.com/drivers) or the NVIDIA
App). Everything else - Python, the engine, the model - is set up for you.
**Windows**
1. [Download this project](https://github.com/Niko1221/Strata/archive/refs/heads/main.zip) and unzip it (or `git clone` it).
2. Double-click **`START-HERE.bat`**.
3. Answer a few questions - or just press Enter each time for the recommended choice:
- **Which model and size?** The original or Swift 1.5, and Q2_0, IQ2_XS, IQ3_XXS or IQ3_S - see [above](#which-model-should-i-pick)
- **How much context?** How much text it can keep in mind at once (it suggests one for your card). 384K and
512K (experimental) extend the model past its trained 262K by rope scaling - the setup turns it on itself (yarn and a
covering factor; `--rope-scaling`/`--rope-scale` override) ([details](docs/DETAILS.md))
- **Images?** Whether it should also read pictures
- **Experimental speed projection?** Off unless you say yes - [read what it does](docs/DETAILS.md#experimental-speed-projection-experimental-off-by-default) first
Then it downloads everything (the model is ~70 GB, so the first time takes a while - you can stop and it picks up
where it left off) and **starts the model**. Your browser opens the Strata app at `http://127.0.0.1:8080`.
> **While the model starts, your PC can be slow or stop responding for 1-3 minutes** (longest the first time): Strata
> loads 35-55 GB into your RAM and locks part of it for the graphics card. That's normal - wait, and don't close the
> window. The window tells you what it is doing.
**Next time**, just double-click `START-HERE.bat` again: it starts right away, nothing is downloaded twice. Close its
window to stop the model.
**Updating:** download the new version and unzip it anywhere (or `git pull`), then run `START-HERE.bat` in it. The
model files are kept in a `Strata-data` folder next to your Strata folder, so a new copy finds them and sets itself up
the same way - nothing big is downloaded again.
**Linux:** run `./setup.sh` - same questions, same result.
**Docker (Linux):** the same idea, in a container.
1. Host: Docker with the [NVIDIA Container Toolkit](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html)
and a driver **580 or newer** (CUDA 13.0).
2. Build (this compiles the engine into the image, so the container never compiles):
`docker build -t strata .`
`docker build -t strata --build-arg CUDA_ARCHITECTURES=89 .` builds for one card only (faster).
The default covers RTX 30 (86), RTX 40 (89), RTX 50 (120) and A-series (80); a card outside that
set needs a rebuild with its own arch. Add `--build-arg BUILD_VISION=0` to skip the image encoder.
3. Run (the first start downloads the ~70 GB model, then starts; later starts go straight to serving):
`docker run --rm --gpus all -p 8080:8080 --ulimit memlock=-1 -v strata-data:/data strata`
The setup choices are env vars: `-e MODEL=IQ2_XS -e FAMILY=qwen -e CONTEXT=32768 -e VISION=no`
(or `MODEL=Q2_0|IQ3_XXS|IQ3_S`, `FAMILY=swift|coder`; the defaults above are the recommended ones).
`-e VISION=cpu` keeps the image encoder on the CPU. `-e KV=int8|q4_0|k8v4` picks the KV cache
precision; `k8v4` is INT8 K with 4-bit V and keeps its KV in VRAM from 64K up.
Only the model files, the prepared pack, the MTP layer and the install config live in the
`strata-data` volume; the engine is part of the image. Switching between models already on the
volume needs no setup pass: `-e MODEL=Q2_0 -e FAMILY=coder` picks that model's config. Add
`-e REINSTALL=1` only to change settings for a model already set up (context, vision, KV, host,
api_key, LOW_RAM), since those are recorded in its config.
Strata loads 32-62 GB into RAM. `--gpus all` on a host with two usable cards takes both: the
layer split is setup's recommended default ([docs/MULTI_GPU.md](docs/MULTI_GPU.md)), and a volume
set up for one card switches to the pair on its first start there. Pin one card with `-e GPU=0`,
or name them with `-e GPUS=0,2` and where the later card's layers start with `-e LAYER_SPLIT=18`.
A memory limit needs `-e LOW_RAM=on`, which maps the model's experts from the pack instead of
keeping them in RAM: setup.py measures the host's RAM, not the container's limit, so it cannot
see a cap. LOW_RAM runs on one card unless `GPUS` names several (then the experts the cards do not hold are
read through the OS file cache, which can fill the RAM during long prompts).
The server listens on `0.0.0.0:8080` by default; set `-e API_KEY=` before exposing the port
to a network. The image has a `HEALTHCHECK` on `/health`, so `docker ps` shows the container
healthy once the model is loaded, and `GET /v1/status` says what it is running.
## Using it
The Strata app's Monitor (left) while a coding agent writes the pagoda garden from the video (right)
- **In the browser:** `http://127.0.0.1:8080` - the Strata app (it opens by itself when the model starts): **Chat**, a
live **Monitor** of the model and your GPU/CPU/RAM, and **About** with the settings and addresses.
- **Chat in the terminal:** `.venv\Scripts\python chat.py`
- **Your apps and coding agents:** add it as an "OpenAI-compatible" provider with base URL
**`http://127.0.0.1:8080/v1`**, any API key and any model name. Apps that use Anthropic's API: `http://127.0.0.1:8080/v1/messages`.
- **Thinking:** the model thinks before it answers. Choose **off, low, medium or high** - in the chat page menu, with
`/think low` in `chat.py`, or with your app's "reasoning effort" setting. Off is fastest; high is best for hard questions.
- **Pictures:** in the chat page click **Picture**; in `chat.py` type `/image `; in apps just attach them.
- **From your phone or another PC:** `START-HERE.bat --setup --host 0.0.0.0 --api-key `, then open the
address the server window prints; see the [details](docs/DETAILS.md#using-it).
- **Experimental speed projection (off by default):** an experimental control vector that setup can turn on; it
changes how the model answers - read [what it does](docs/DETAILS.md#experimental-speed-projection-experimental-off-by-default) first.
**Good to know:** it answers one request at a time. The first message of a chat is read in full (about 1 minute per
30,000 tokens); after that it keeps the conversation and reads only what is new, so follow-ups start in seconds.
### Where things are stored
- **Your chats: only in your browser.** The Chat tab keeps the conversation, its settings and the API key you typed
in the browser's local storage (`strata.*` keys) - not on the server and not in the Strata folder. Pictures are not
kept, only their names. Another browser or a private window starts empty; clearing the site's data deletes them.
- **How the model starts:** `strata-.json` in the Strata folder (context, GPUs, host, API key, ...), written
by setup; next to it `run-.bat` / `.sh`, the log `strata-.log` and, when you use "Use for other
apps too", `strata-.shared-settings.json`.
- **The model files** (`models/`, `packs/`, `mtp/`, 70-120 GB): in **`Strata-data` next to the Strata folder**, or
wherever `--data-dir` put them.
- **Where that data folder is:** `%APPDATA%\Strata\settings.json` on Windows, `~/.config/strata/settings.json` on
Linux ([details](docs/DETAILS.md)).
## Something went wrong?
**My PC froze, or got very slow, the first time Strata started.**
That's normal while it starts, most of all the first time. Strata loads 35-55 GB into your RAM, locks part of it for
the graphics card, and works out how much of the model fits on your GPU. The mouse can freeze for a few minutes. **Wait, and don't close the
window.** The next starts are much faster. Still frozen after 10 minutes? Restart the PC, close other programs
(browsers use a lot of RAM) and try again. If it keeps happening, pick a smaller size (Q2_0 or IQ2_XS).
**It stopped while downloading or installing.**
Run `START-HERE.bat` again. It continues where it stopped.
**It says the NVIDIA driver is too old.**
Update it (NVIDIA App or [nvidia.com/drivers](https://www.nvidia.com/drivers)), restart the PC, and run
`START-HERE.bat` again.
**It says port 8080 is already in use.**
Strata is already running. Look for its window.
**It's very slow and the disk light keeps blinking.**
Your PC is out of free RAM. Close other programs, or pick a smaller size (Q2_0 or IQ2_XS).
**An answer stopped with "the engine stopped unexpectedly".**
Usually not enough RAM (on Linux the system then stops the engine). Just send your message again: Strata starts the
engine by itself. If it keeps happening, close other programs or pick a smaller size.
**It says the prompt exceeds the context.**
The conversation is longer than the context you chose. Start a new chat, or run `SETUP.bat` and pick more
context.
**Still stuck?** Look in the [full troubleshooting table](docs/DETAILS.md#troubleshooting), or open an issue and
attach `strata-.log` from the Strata folder.
## How does it work?
Models like this one normally run on servers with hundreds of gigabytes of graphics memory. Your graphics card has
12-24 GB. Strata makes it fit by **sharing the work across your whole PC** - the same idea as a kitchen, where the
things you use all the time stay on the counter and the rest waits in the pantry.
- **The model is a team of 24,576 small specialists ("experts"),** and each word it writes needs only 10 of them.
So it doesn't have to have all of them on the graphics card at once.
- **Your graphics card** does the part of the work needed for every word, and keeps the few thousand experts that
are asked most often. It keeps learning which ones those are while you use it.
- **Your RAM** holds every expert. When a word needs one the card doesn't have, **your processor** works on it -
at the same time as the graphics card, so neither waits for the other.
- **Your SSD** holds a big lookup table; the model only reads a few small rows of it per word.
- **Guess, then check.** A small, fast helper built into the model guesses the next few words, and the big model
checks all the guesses in one go. It keeps the ones it agrees with and writes the next word itself - so one step
often produces several words. The helper only guesses - the big model decides every word - so you get the same
quality answer, 1.6-1.8x sooner.
- **Long texts are read in big pieces** (up to 8,192 tokens - pieces of words - at a time), which is why a long
document or code base is read at over 1,000 tokens per second.
Want the full picture? The [details](docs/DETAILS.md#how-it-works) explain every part and its numbers, and the
[paper](docs/paper/Strata-Paper.pdf) tells the whole story, with the measurements behind it.
## Credits
- Model: [Qwen3.8-Flash-Next](https://huggingface.co/Qwen/Qwen3.8-Flash-Next) by the Qwen team; compressed versions by
[ISTA-DASLab](https://huggingface.co/ISTA-DASLab/Qwen3.8-Flash-Next-GSQ-RCO-GGUF);
[Swift 1.5](https://huggingface.co/ukisai/Swift-1.5-Qwen3.8-Flash-Next-GSQ-RCO-GGUF) by UkisAI; the experimental
[UD-Q4_K_XL](https://huggingface.co/unsloth/Qwen3.8-Flash-Next-GGUF) by Unsloth (its support follows
[eddoursul/Strata](https://github.com/eddoursul/Strata)). Their licenses apply to the model files.
- Built with parts of [llama.cpp / ggml](https://github.com/ggml-org/llama.cpp) (MIT). Ideas from
[Splash](https://github.com/incoai/splash), [ninfer](https://github.com/Neroued/ninfer) and
[HyperQwen](https://github.com/syv-ai/HyperQwen). More in the [details](docs/DETAILS.md#credits-and-licenses).
## License
Strata is open source under the [MIT License](LICENSE). A few parts carry their own licenses: `third_party/ggml`
(MIT, llama.cpp / ggml), the web app's font (SIL Open Font License 1.1) and the experimental speed projection's
vector in `data/experimental-speed-projection` (Qwen Community License 1.0, from the model's activations). The
models are not part of this repository; each model's own license applies to its files.