Undi95 · language model
ReMM SLERP 13B: pricing, context and benchmarks
ReMM SLERP 13B is a language model from Undi95 released on July 22, 2023. It costs $0.35 per million input tokens and $0.65 per million output tokens, with a 6.1K-token context window. No independent score has been published for it so far.
What you need to know about ReMM SLERP 13B
ReMM SLERP 13B was released by Undi95 on July 22, 2023. It accepts text as input and produces text. Its context window reaches 6,144 tokens, larger than 1 % of the models in the registry, and it can write up to 5,529 tokens in one go.
Released more than 3 years ago, it belongs to a generation most vendors have since superseded.
ReMM SLERP 13B pricing
On OpenRouter, ReMM SLERP 13B costs $0.35 per million input tokens and $0.65 per million output tokens. Counting three tokens read for every token written, its average price is $0.425 per million, more expensive than 36 % of paid models (1.8 times cheaper than the median of $0.76).
A concrete example: a task that sends 2,000 tokens (about 1,500 words) and receives a 500-token answer costs $0.001. At 1,000 tasks a day, budget $31 a month. The price calculator redoes this with your own volumes.
Performance and benchmarks
Epoch AI does not yet publish a capabilities index for ReMM SLERP 13B. We therefore show no made-up performance rating: only price, context and features count towards its score.
Features, privacy and local use
- It does not support tool calling: it is not suited to driving an AI agent that has to act.
- It can answer in an enforced JSON format (structured outputs).
- Its knowledge stops at June 2023.
Its weights are open and downloadable from Hugging Face: you can run it on your own machines without sending your data to a third party.
Verdict
ReMM SLERP 13B scores 43/100 on our grid, which only uses published figures.
Strengths
- Open weights: self-hostable, your data stays with you.
Limitations
- Short context (6.1K tokens): long documents must be split.
- No tool calling: unusable as an agent's brain.
- No independent score published: performance cannot be verified.
- Older generation, often replaced by a newer model from the same vendor.
- Text only: reads neither images nor files.
Avoid if…
- you are building an agent that must call tools;
- you analyse long documents in one go.
Alternatives
- Weaver (alpha)$0.49
- Qwen2.5 72B Instruct$0.37
- Perceptron Mk1.5$0.49
- Perceptron Mk1$0.49
- Gemma 2 27B$0.65
- Mistral Small 3.1 24B$0.4
Comparisons and tools
Learn more
Frequently asked questions
How much does ReMM SLERP 13B cost?
$0.35 per million input tokens and $0.65 per million output tokens on OpenRouter (checked October 25, 2026). A task with 2,000 tokens read and 500 written costs $0.001.
How big is ReMM SLERP 13B's context window?
6,144 tokens, roughly 5,000 words, with a maximum of 5,529 output tokens.
Can ReMM SLERP 13B run locally?
Yes, its weights are published.
Is ReMM SLERP 13B suitable for an AI agent?
No: without tool calling it cannot act, only answer.
What are the alternatives to ReMM SLERP 13B?
The closest models on price and performance are Weaver (alpha), Qwen2.5 72B Instruct, and Perceptron Mk1.5.
Related articles
- Mistral AI: models, pricing and agentsOctober 25, 2026
- LLM benchmarks: how to read model rankingsOctober 24, 2026
- Running a local LLM: hardware, software, and limitationsOctober 24, 2026
- Open-source or closed models for your AI agents?October 5, 2026
Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score