Introducing Mellum2: A 12B Mixture-of-Experts Model by JetBrains
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AI & ML interests
Reliable and context-aware coding assistance
Recent Activity
Papers
Mellum2 Technical Report
The Best of N Worlds: Aligning Reinforcement Learning with Best-of-N Sampling via max@k Optimisation
Articles
JetBrains/Mellum2-12B-A2.5B-Base
Text Generation • 12B • Updated • 19.8k • 22
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 87 • 14
JetBrains/Mellum2-12B-A2.5B-Thinking-SFT
Text Generation • 12B • Updated • 166 • 25
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 4.55k • 82
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 5.01k • 320
JetBrains/Mellum2-12B-A2.5B-Base-Pretrain
Text Generation • 12B • Updated • 111 • 11
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 361 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q4_K_M
Text Generation • 12B • Updated • 2.2k • 8
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q6_K
Text Generation • 12B • Updated • 440 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q8_0
Text Generation • 12B • Updated • 2.38k • 6
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-BF16
Text Generation • 12B • Updated • 78 • 2
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 675 • 10
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 3.16k • 35
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 1.57k • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 1.26k • 19
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 302 • 6
JetBrains/Mellum-4b-dpo-python-gguf
4B • Updated • 31 • 5
JetBrains/Mellum-4b-dpo-python
Text Generation • 187k • Updated • 17 • 10
JetBrains/Mellum-4b-dpo-all-gguf
4B • Updated • 169 • 8
JetBrains/Mellum-4b-dpo-all
Text Generation • 187k • Updated • 343 • 9
JetBrains/Mellum-4b-sft-all
Text Generation • 4B • Updated • 294 • 15
JetBrains/Mellum-4b-sft-all-gguf
4B • Updated • 171 • 6
JetBrains/Mellum-4b-sft-kotlin-gguf
4B • Updated • 67 • 6
JetBrains/Mellum-4b-sft-kotlin
Text Generation • 4B • Updated • 27 • 22
JetBrains/Mellum-4b-sft-python
Text Generation • 4B • Updated • 47 • 56
JetBrains/Mellum-4b-sft-python-gguf
4B • Updated • 135 • 45
JetBrains/Mellum-4b-base-gguf
4B • Updated • 255 • 42
JetBrains/Mellum-4b-base
Text Generation • 4B • Updated • 1.55k • 450
JetBrains/CodeLlama-7B-KStack-clean
Text Generation • 7B • Updated • 18 • 5
JetBrains/CodeLlama-7B-KStack
Text Generation • 7B • Updated • 19 • 9