Mythomax L2 13B is a 13-billion parameter open-weight model released by Gryphe in August 2023, built on Meta's Llama 2 foundation. It was designed to excel at creative writing and roleplay scenarios, combining emotional coherence with character consistency across long narrative exchanges. The model merges MythoLogic-L2 and Huginn using an experimental BlockMerge_Gradient tensor merging technique, where each of its 363 tensors received a unique blending ratio. This approach fuses one model's robust language understanding with another's narrative writing capability to produce strong results in both storytelling and character consistency. Mythomax L2 keeps persona traits, speech patterns, and emotional nuance steady across thousands of tokens without drifting into generic assistant-speak. It resists breaking character in complex roleplay scenarios and sustains emotional coherence in dialogue-driven narratives. The model uses Alpaca prompt formatting, and community quantizations in GGUF, GPTQ, and AWQ formats provide flexibility across varied hardware constraints.
MythoMax L2 13B runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output |
|---|---|---|---|---|---|
| US | Enterprise | No | $0.40 | $0.40 |
MythoMax L2 13B runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting MythoMax L2 13B has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention is available via Opper Enterprise contract. No training on customer data. US; unknown.
Call MythoMax L2 13B through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "deepinfra/Gryphe/MythoMax-L2-13b",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
