MythoMax 13B
3505°
<myth2-13b>
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Guides for this model
Ollama vs LM Studio (2026): which local AI app to use, and which top models each one runs
What is a GGUF file? Quantized models explained (Q4, Q8, fp8, NF4)
How much VRAM do I actually need for local AI?
gryphe | 8,192 token context | $0.08/M input, $0.11/M output. One of the highest performing and most popular fine-tunes of Llama 2 13B, with rich descriptions and roleplay. #merge
Captain's notes
Notes from 2026-10-13
MythoMax 13B is a merge of multiple Llama 2 13B fine-tunes by Gryphe, built specifically for roleplay and creative writing. Its tensor-level merge technique blends strong language understanding with expressive output, producing notably coherent prose for its size. If you want a lightweight, locally runnable model for fiction and character chat, this was the go-to choice for a long time — and the weights are still very much available.
Known for
- Roleplay and storywriting: the core reason this model exists and where it shines.
- Tensor-level merge across 363 individually weighted tensors for coherent output.
- Open weights with quantized GGUF, GPTQ and AWQ builds available.
- Extremely low API cost: fractions of a cent per typical exchange.
- Long-running community popularity despite its age and model size.
Watch out for
- The maker's own card notes MythoMax is fading with Llama 3 out — newer merges outperform it.
- 8,192-token context is modest; long sessions or large documents will hit the limit.
- Licence is listed as 'other' — check the Hugging Face repo before any commercial use.
Prompts to try
Open a fantasy scene
Write the opening of a scene in a rain-soaked medieval tavern. A hooded stranger sits alone nursing a drink. A nervous young courier has just arrived with a sealed letter and is scanning the room. Set the mood with sensory detail, then end on the moment their eyes meet.
Character voice test
Write a single reply from a world-weary ship captain who has just been asked by a green recruit why she never smiles. She is not cruel, but she does not soften things either. One paragraph, first person, no action beats.
Collaborative story beat
We are writing a story together. So far: a detective has found a locked room with no exits, a dead man holding a lit candle, and a single muddy boot print that leads to the window and stops. Write the detective's next two minutes in the room — observations, thoughts, one small discovery.
Compare with
- Aion-3.0-MiniAPI-only model131,072 token context · $0.70/M input, $1.40/M output
- Weaver (alpha)API-only model8,000 token context · $0.40/M input, $0.75/M output
- MiniMax M2-herAPI-only model65,536 token context · $0.30/M input, $1.20/M output
- GPT-4o-mini (2024-07-18)API-only model128,000 token context · $0.15/M input, $0.60/M output
More text models from gryphe
Questions people ask
- Can I run MythoMax 13B locally?
- Yes — the weights are open and quantized builds in GGUF, GPTQ and AWQ formats are available on Hugging Face, so you can run it with Ollama, LM Studio or any compatible runtime.
- What does it cost to use via API, and what is the context window?
- Gryphe prices it at $0.08 per million input tokens and $0.11 per million output tokens, with an 8,192-token context window.
- How does MythoMax compare to newer Llama 3 fine-tunes?
- Gryphe themselves say it is time for MythoMax to fade — Llama 3 based merges and fine-tunes have largely surpassed it, so treat this as a proven classic rather than a current best-in-class.
Captain's verdictA proven creative-writing workhorse that earned its reputation, now comfortably outpaced — worth running locally for roleplay, not for much else.
Model card on Hugging Face
Captain writes these notes from the model's own description and model card. Prices and context sizes are the provider's at the time of writing and can change.
Ranking badge
Updated Oct 22, 2026
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How this score adds up
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Glossary: the terms used here
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- Everything the score treats as a download, added up: downloads themselves, each torrent seeder as 1,000, each AI Horde image and each run on a generation site as one.
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- A text model served through an API, such as Claude or GPT, has no weights to download, so its usage is measured in tokens: the pieces of text it read and wrote through OpenRouter, a gateway many apps use, over the last 30 days. Every 10,000,000 tokens count as one download. Source: OpenRouter (openrouter.ai/rankings), CC BY 4.0.
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- LoRA and embedding
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- Trend
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- Typical model
- The middle of the catalog: half the models with a figure grew faster over the period, half slower.
MythoMax 13B is a text model for the Text / LLM family listed on ModelTrends.ai, a read-only catalog of open source AI image, video and text models. Compare it with other Text / LLM models, check its heat score to see how it is trending, and open it on PirateDiffusion or BitVector to try it.
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