Introducing Mellum2: A 12B Mixture-of-Experts Model by JetBrains
• 40
AI & ML interests
Reliable and context-aware coding assistance
Recent Activity
View all activity
Papers
Mellum2 Technical Report
The Best of N Worlds: Aligning Reinforcement Learning with Best-of-N Sampling via max@k Optimisation
Articles
Junie Local's unofficial JetBrains 50/50 blend of Qwen3.6-27B and Qwen3.8-27B: BF16, GGUF, and MLX weights.
-
JetBrains/Qwen3.8-3.6-27B-blend
Image-Text-to-Text • 28B • Updated • 512 • 12 -
JetBrains/Qwen3.8-3.6-27B-blend-GGUF
Image-Text-to-Text • 27B • Updated • 1.84k • 10 -
JetBrains/Qwen3.8-3.6-27B-blend-MLX-4bit
Image-Text-to-Text • 27B • Updated • 418 • 3 -
JetBrains/Qwen3.8-3.6-27B-blend-MTP-MLX-4bit
0.4B • Updated • 480 • 1
Mellum2 model weights
-
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 2.11k • 339 -
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 3.55k • 86 -
JetBrains/Mellum2-12B-A2.5B-Thinking-SFT
Text Generation • 12B • Updated • 392 • 25 -
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 384 • 14
A collection of datasets, fine-tuned models and benchmarks to train your models for perfect Kotlin code generation.
Mellum2 GGUF weights
-
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 80 • 6 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 596 • 22 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 767 • 12 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 2.65k • 46
Series of code models by JetBrains
Junie Local's unofficial JetBrains 50/50 blend of Qwen3.6-27B and Qwen3.8-27B: BF16, GGUF, and MLX weights.
-
JetBrains/Qwen3.8-3.6-27B-blend
Image-Text-to-Text • 28B • Updated • 512 • 12 -
JetBrains/Qwen3.8-3.6-27B-blend-GGUF
Image-Text-to-Text • 27B • Updated • 1.84k • 10 -
JetBrains/Qwen3.8-3.6-27B-blend-MLX-4bit
Image-Text-to-Text • 27B • Updated • 418 • 3 -
JetBrains/Qwen3.8-3.6-27B-blend-MTP-MLX-4bit
0.4B • Updated • 480 • 1
Mellum2 GGUF weights
-
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 80 • 6 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 596 • 22 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 767 • 12 -
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 2.65k • 46
Mellum2 model weights
-
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 2.11k • 339 -
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 3.55k • 86 -
JetBrains/Mellum2-12B-A2.5B-Thinking-SFT
Text Generation • 12B • Updated • 392 • 25 -
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 384 • 14
Series of code models by JetBrains
A collection of datasets, fine-tuned models and benchmarks to train your models for perfect Kotlin code generation.