ReMM SLERP L2 13B

by Undi95

ReMM SLERP L2 13B is Undi95's "Re:MythoMax" merge, a 13-billion-parameter Llama 2 model that rebuilds the MythoMax recipe using newer components. It combines a ReML base with Huginn v1.2 through spherical linear interpolation, blending the two parent models across the tensor space rather than stacking fine-tunes. The merge targets the same ground as MythoMax: character-driven roleplay, creative storytelling, and dialogue that keeps a consistent voice over longer exchanges. Later ReMM revisions swap in different components for the ReML half, but the SLERP build remains the closest analogue to the original. It runs on the Llama 2 generation, so the context window is short by current standards and reasoning is limited next to modern 13B models. Reach for it when the specific MythoMax-lineage writing style is what you want, and use a newer model when the workload needs long context or tool use.

Key info

Input
Output
Features
Context window
6K
Max output
4K
Input price
$0.45 /1M
Output price
$0.65 /1M
  • EU residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

ReMM SLERP L2 13B runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
EUEnterpriseNo$0.45$0.65

Data handling per route

Each route hosting ReMM SLERP L2 13B has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Nextbit β€” SpainπŸ‡ͺπŸ‡Έ

Zero data retention is available via Opper Enterprise contract. No training on customer data. EEA; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Other (90-day retention)
Third-party access
Provider may share with subprocessors / partners
GDPR DPA
DPA available
Transfer mechanism
SCCs

Get started

Call ReMM SLERP L2 13B through the Opper gateway with one API key. Let your coding agent set it up, or call it directly β€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

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: "nextbit/remm-slerp:l2-13b",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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