---
language:
- en
tags:
- gemma4
- text adventure
- roleplay
license: apache-2.0
base_model:
- google/gemma-4-31B-it
---

![Equinox-31B](Equinox-31B.jpg)

# Equinox-31B

Equinox draws its name from the balance between extremes. Trained on a balanced blend of [Wayfarer 2](https://huggingface.co/LatitudeGames/Wayfarer-2-12B)'s unforgiving dark adventures and [Hearthfire](https://huggingface.co/LatitudeGames/Hearthfire-24B)'s quiet slice-of-life storytelling, Equinox is equally at home in perilous dungeons and candlelit conversations.

If you want to easily try this model, you can do so at [https://aidungeon.com](https://aidungeon.com/). Note that Equinox requires a subscription to use.

We plan to continue improving and open-sourcing similar models, so please share any and all feedback on how we can improve model behavior. Below we share more details on how Equinox was created.

[Quantized GGUF weights can be downloaded here.](https://huggingface.co/LatitudeGames/Equinox-31B-GGUF)

## Model details

Equinox 31B was trained with two epochs of SFT (Supervised Fine-Tuning) on top of Gemma 4 31B Instruct, using a balanced dataset that combines two distinct creative directions:

**Wayfarer 2 data** — Dark, consequence-driven text adventures where choices carry weight, the world pushes back, and survival is never guaranteed. This is the grit and edge of Equinox.

**Hearthfire data** — Longform writing focused on slice-of-life, character depth, and emotional beats. Extended scenes where nothing "happens" but everything matters. This is the warmth and patience of Equinox.

Both datasets are primarily second-person present tense, supplemented with a smaller third-person dataset in the same narrative style.

## Inference

The following settings are recommended as a baseline. Nothing stops you from experimenting with these, of course.

```
"temperature": 0.8,
"repetition_penalty": 1.05,
"min_p": 0.025
```

## Limitations

As a balanced model, Equinox occupies a middle ground by design. If you specifically want maximally grim, unforgiving storytelling, [Harbinger](https://huggingface.co/LatitudeGames/Harbinger-24B) or [Wayfarer 2](https://huggingface.co/LatitudeGames/Wayfarer-2-12B) may better suit your needs. For pure atmospheric slowburn, [Hearthfire](https://huggingface.co/LatitudeGames/Hearthfire-24B) remains the specialist.

No reasoning datasets were included during training.

## Prompt Format

Gemma 4's native chat template was used, and thinking mode is suppressed by default.

```
<bos><|turn>system
You're a masterful storyteller and gamemaster. Write in second person present tense (You are), crafting vivid, engaging narratives with authority and confidence.<turn|>
<|turn>user
> You peer into the darkness.<turn|>
<|turn>model
<|channel>thought
<channel|>You have been eaten by a grue.

GAME OVER<turn|>
```

## Credits

Thanks to [Gryphe Padar](https://huggingface.co/Gryphe) for collaborating on this finetune with us!