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MythoMax 13B: AI Large Language Models

Call MythoMax 13B through one API. 4K-token context, streaming and pay-per-token pricing. Try free in the Muapi playground. MythoMax 13B is a classic 13B Llama 2-based community fine-tune tuned for creative writing, character chat and interactive fiction (it is not abliterated), with a short 4K-token context window.

Interactive model controls

MythoMax 13B is a classic 13B Llama 2-based community fine-tune tuned for creative writing, character chat and interactive fiction (it is not abliterated), with a short 4K-token context window.

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Overview

About this model

MythoMax 13B is a classic 13B Llama 2-based community fine-tune tuned for creative writing, character chat and interactive fiction (it is not abliterated), with a short 4K-token context window. Muapi exposes it through a single REST endpoint with async polling and Server-Sent Events streaming, so you can drop it into chat apps, agents and workflows without hosting GPUs. It is best suited to short, inexpensive creative chats. Pricing is pay-per-token at $0.2006/M input tokens and $0.2006/M output tokens, with no subscription. See also Anubis 70B v1.1, Euryale 70B v2.3, Stheno 8B v3.2, Magnum v4 72B, EVA Llama 3.33 70B, Wayfarer 70B, Nevoria R1 70B. Browse the full lineup on the Llama Character Chat API page or the Character Chat LLM API hub and the Abliterated LLM API hub. Mature themes are permitted only within Muapi's acceptable-use policy, and output quality and behavior vary by prompt.

1Character chat: Give MythoMax 13B a persona through `system_prompt` and keep long conversations in character.
2Interactive fiction: Build text adventures and collaborative stories on the [Character Chat LLM API](/character-chat-llm-api) hub.
3Story writing: Draft scenes, dialogue and world-building with a model tuned for creative prose.
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Pricing & Value

Cost analysis

muapiapp$0.2006/M input tokens and $0.2006/M output tokens

Pay-per-token, billed on actual usage with a small minimum reserved up front.

Fal.aiNot available

MythoMax 13B is not offered as a hosted endpoint.

ReplicateNot available

MythoMax 13B is not offered as a hosted endpoint.

** Competitor pricing is estimated based on similar model architectures and usage tiers.

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Technical Details

Configuration schema

Promptstring

The user message or instruction for the model.

Default ValueStay in character as a dry-witted ship's navigator and greet the new crew member.
System Promptstring

Optional system-level instruction to guide model behavior. Use it to define the character or setting.

Default ValueYou are Mara, a dry-witted ship's navigator. Stay in character.
Max Tokensinteger

Optional maximum number of tokens to generate.

Default Value1024
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Implementation Guide

Developer documentation

How to Use MythoMax 13B API

  1. Get an API key: Create a key in your Muapi dashboard.

  2. Send a prompt: POST prompt (plus optional system_prompt and max_tokens, up to 2048) to /api/v1/mythomax-13b.

curl -X POST https://api.muapi.ai/api/v1/mythomax-13b \
  -H "x-api-key: $MUAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Stay in character as a dry-witted ship's navigator and greet the new crew member."}'
  1. Poll or stream: Poll GET /api/v1/predictions/{request_id}/result until status is completed, or stream tokens live from /api/v1/mythomax-13b/stream.
curl -X POST https://api.muapi.ai/api/v1/mythomax-13b/stream \
  -H "x-api-key: $MUAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Stay in character as a dry-witted ship's navigator and greet the new crew member."}'
  1. Read the result: The generated text is returned in outputs. Usage is billed on actual token counts.
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Common Questions

Frequently asked

What is MythoMax 13B?

MythoMax 13B is a classic 13B Llama 2-based community fine-tune tuned for creative writing, character chat and interactive fiction (it is not abliterated), with a short 4K-token context window.

What is this model tuned for?

MythoMax 13B is a community fine-tune tuned for creative writing, character chat and interactive fiction. It is not an abliterated model.

How is MythoMax 13B priced?

Billing is per token: $0.2006/M input tokens and $0.2006/M output tokens. A small minimum is reserved when the request starts and reconciled to actual usage.

Does MythoMax 13B support streaming?

Yes. Stream tokens live from `/api/v1/mythomax-13b/stream` using Server-Sent Events, or poll the async endpoint.

What is the context window?

The context window is about 4K tokens. Prompt and output together must fit inside it; `max_tokens` is capped at 2048. The endpoint accepts text input only.

Are mature themes allowed?

Only within Muapi's acceptable-use policy. The model is not guaranteed to produce any particular content, and you remain responsible for complying with applicable laws.