---
name: Mellum2 12B A2.5B
slug: mellum2-12b-a2-5b
type: LLM
providers:
  - wandb
description: >-
  Mellum2-12B-A2.5B-Instruct is a fast MoE model with 131K context built for
  coding, tool use, and low-latency AI workflows.
tags:
  - open-source
  - llm
  - tool-use
is_open_source: true
context_window: 131072
max_output: 131072
pricing:
  - image: 0
    input: 0.05
    output: 0.1
    provider: wandb
release_date: '2026-06-01'
capabilities:
  audio: false
  vision: false
  tool_use: true
  citations: false
  reasoning: false
---
Mellum2 12B A2.5B is a LLM model.
Mellum2-12B-A2.5B-Instruct is a fast MoE model with 131K context built for coding, tool use, and low-latency AI workflows.