# matilda-jev-v1 by Maincode: Open-Weight Model
Source: https://savrn.com/models/matilda-jev-v1
Markdown alternate of the page above; the site index is https://savrn.com/llms.txt

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## Runs On

What it takes to serve matilda-jev-v1 (26.1B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also fits |
| --- | --- | --- | --- | --- | --- |
| 16-bit | 52.2 GB | 62.6 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |
| 8-bit | 26.1 GB | 31.3 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |
| 4-bit | 13.0 GB | 15.7 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the [SAVRN Index](https://savrn.com/ai-index/pricing/gpus), read Oct 7, 2026.

[matilda-jev-v1 on every accelerator the SAVRN Index prices, at every precision](https://savrn.com/models/matilda-jev-v1/gpus)

## Model Card

By Maincode, published under apache-2.0, revision 3dd1a9db4c33.

### Matilda-Jev by Maincode

Matilda-Jev is Maincode's one-pass decision model. It scores the options supplied in a choice, noul (yes/no), or ordered score question. It accepts text or JSON state and optional images. This is a decision checkpoint with a 255-option readout, not a text-generation checkpoint.

This configuration edition uses MatildaJevModel, MatildaJevConfig, and MATILDA tokenizer/processor classes. Use the bundled runtime below, or load the custom AutoClasses with trust_remote_code=True. The package includes the backbone weights, decision readout, tokenizer, preprocessing configuration and calibrated temperature.

### Validation

On AMD MI355X with Python 3.12, Transformers 5.17.0 and PyTorch 2.14.0:

- 25/25 smoke-test questions passed, including six product-identity questions and an image question.
- All 23 requests matched the original checkpoint's answer probabilities exactly (maximum difference 0).
- Tokenization, image preprocessing, configuration save/reload and architecture-parameter comparisons passed.
- A real forward/backward pass produced finite, nonzero readout and embedding gradients. No optimizer update was applied.

[Read the full model card (474 words)](https://savrn.com/models/matilda-jev-v1/card)

## Configuration

Architecture

MatildaJevModel

Context length (tokens)

262,144

Layers

64

Hidden size

5,120

Feed-forward size

17,408

Attention heads

24

Key/value heads

4

Head dimension

256

Vocabulary size

248,320

Model type

matilda_jev

## Identity and Version

Repository

Maincode/matilda-jev-v1

Publisher

Maincode

Task

Feature extraction

Modality

Text

Library

transformers

Parameters

26.1B parameters

Languages

en

Revision

3dd1a9db4c337f6aca80d4b682a1fcf712944d7e

First published

2026-09-30

Last updated

2026-10-07

## Files and Weights

41 files, 52.2 GB in total. The weights are 12 files totalling 52.2 GB in safetensors.

Weights12 files · 52.2 GB

Configuration20 files · 171.9 KB

Tokenizer2 files · 20.0 MB

Documentation2 files · 16.1 KB

Other4 files · 33.1 KB

Repository1 file · 1.6 KB

Every file

| File | Type | Size | SHA-256 |
| --- | --- | --- | --- |
| model-00001-of-00011.safetensors | Weights | 5.0 GB | ad9615133ae2 |
| model-00002-of-00011.safetensors | Weights | 5.0 GB | f1488d845eec |
| model-00003-of-00011.safetensors | Weights | 4.9 GB | 53d90ef212d0 |
| model-00004-of-00011.safetensors | Weights | 5.0 GB | 2288a0f3d9dd |
| model-00005-of-00011.safetensors | Weights | 5.0 GB | e7a08e2b452a |
| model-00006-of-00011.safetensors | Weights | 4.9 GB | 688723f918f8 |
| model-00007-of-00011.safetensors | Weights | 5.0 GB | 9251e36e82d2 |
| model-00008-of-00011.safetensors | Weights | 4.9 GB | 59bf8ac0ae5b |
| model-00009-of-00011.safetensors | Weights | 5.0 GB | cc010e178005 |
| model-00010-of-00011.safetensors | Weights | 4.9 GB | 95b271104f64 |
| model-00011-of-00011.safetensors | Weights | 2.6 GB | 8b17d96a9816 |
| readout.safetensors | Weights | 2.6 MB | 262b432eea8c |
| CPU_TEST.json | Configuration | 370 B | — |
| PACKAGE_MANIFEST.json | Configuration | 6.0 KB | — |
| TEST_REPORT.json | Configuration | 2.5 KB | — |
| WEIGHTS_VERIFIED.json | Configuration | 2.4 KB | — |
| config.json | Configuration | 3.9 KB | — |
| configuration_matilda_jev.py | Configuration | 603 B | — |
| decision_config.json | Configuration | 5.4 KB | — |
| model.safetensors.index.json | Configuration | 104.0 KB | — |
| modeling_matilda_jev.py | Configuration | 1.3 KB | — |
| processing_matilda_jev.py | Configuration | 1.5 KB | — |
| processor_config.json | Configuration | 1.3 KB | — |
| runtime/maincode_jev_serve/__init__.py | Configuration |  | — |
| runtime/maincode_jev_serve/ask.py | Configuration | 4.8 KB | — |
| runtime/maincode_jev_serve/config.py | Configuration | 2.1 KB | — |
| runtime/maincode_jev_serve/decide.py | Configuration | 3.7 KB | — |
| runtime/maincode_jev_serve/engine.py | Configuration | 3.3 KB | — |
| runtime/maincode_jev_serve/model.py | Configuration | 14.4 KB | — |
| runtime/maincode_jev_serve/server.py | Configuration | 12.2 KB | — |
| runtime/maincode_jev_serve/types.py | Configuration | 1.9 KB | — |
| tokenization_matilda_jev.py | Configuration | 280 B | — |
| LICENSE | Documentation | 11.5 KB | — |
| README.md | Documentation | 4.5 KB | — |
| USAGE.txt | Other | 2.4 KB | — |
| chat_template.jinja | Other | 9.0 KB | — |
| requirements-runtime.txt | Other | 220 B | — |
| runtime/maincode_jev_serve/playground.html | Other | 21.5 KB | — |
| .gitattributes | Repository | 1.6 KB | — |
| tokenizer.json | Tokenizer | 20.0 MB | 6f32ce20dc35 |
| tokenizer_config.json | Tokenizer | 1.5 KB | — |

## License and Download

License

apache-2.0

Access

Open weights, no gate

Download size

52.2 GB

[Download from Maincode](https://huggingface.co/Maincode/matilda-jev-v1)

Released by Maincode through its official repository on Hugging Face. [Read the license](https://www.apache.org/licenses/LICENSE-2.0).

## Built From

- Derived from [Qwen/Qwen3.8-27B](https://savrn.com/models/qwen3-8-27b)

## Memory Requirements

| Precision | Weights in memory |
| --- | --- |
| As published | 52.2 GB |
| 16-bit | 52.2 GB |
| 8-bit | 26.1 GB |
| 4-bit | 13.0 GB |

Weights only, from the published parameter count; the key-value cache and runtime add to this.

## Questions About matilda-jev-v1

### How much GPU memory does matilda-jev-v1 need?

About 62.6 GB at 16-bit and 15.7 GB at 4-bit: the weights (26.1B parameters) plus a working margin. A long context needs more.

### What is the cheapest GPU to run matilda-jev-v1 on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

### Can I use matilda-jev-v1 commercially?

Yes. matilda-jev-v1 is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

### What is matilda-jev-v1's context length?

262,144 tokens, from the maximum position embeddings in its published configuration.

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## Maincode

[All models and datasets](https://savrn.com/model-publishers/maincode)

## Versions

- [3dd1a9db4c33](https://savrn.com/models/matilda-jev-v1/versions/3dd1a9db4c33) · current 2026-10-07

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## Source

- Repository metadata, read 2026-10-07.
- [Hugging Face record](https://huggingface.co/Maincode/matilda-jev-v1)
- [How the hub is built](https://savrn.com/model-hub/methodology)
