Introducing Mellum2: A 12B Mixture-of-Experts Model by JetBrains
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AI & ML interests
Reliable and context-aware coding assistance
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-Thinking-SFT
Text Generation • 12B • Updated • 335 • 25
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 285 • 14
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 2.36k • 333
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 2.71k • 82
JetBrains/Mellum2-12B-A2.5B-Base
Text Generation • 12B • Updated • 17k • 24
JetBrains/Mellum2-12B-A2.5B-Base-Pretrain
Text Generation • 12B • Updated • 243 • 12
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 371 • 9
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q4_K_M
Text Generation • 12B • Updated • 89k • 13
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q6_K
Text Generation • 12B • Updated • 517 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q8_0
Text Generation • 12B • Updated • 159k • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-BF16
Text Generation • 12B • Updated • 33 • 2
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 516 • 13
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 3.55k • 43
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 869 • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 616 • 21
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 79 • 6
JetBrains/Mellum-4b-dpo-python-gguf
4B • Updated • 28 • 5
JetBrains/Mellum-4b-dpo-python
Text Generation • 187k • Updated • 49 • • 10
JetBrains/Mellum-4b-dpo-all-gguf
4B • Updated • 476 • 9
JetBrains/Mellum-4b-dpo-all
Text Generation • 187k • Updated • 156 • • 10
JetBrains/Mellum-4b-sft-all
Text Generation • 4B • Updated • 204 • 15
JetBrains/Mellum-4b-sft-all-gguf
4B • Updated • 544 • 6
JetBrains/Mellum-4b-sft-kotlin-gguf
4B • Updated • 68 • 6
JetBrains/Mellum-4b-sft-kotlin
Text Generation • 4B • Updated • 60 • • 22
JetBrains/Mellum-4b-sft-python
Text Generation • 4B • Updated • 70 • • 56
JetBrains/Mellum-4b-sft-python-gguf
4B • Updated • 97 • 45
JetBrains/Mellum-4b-base-gguf
4B • Updated • 269 • 42
JetBrains/Mellum-4b-base
Text Generation • 4B • Updated • 2.55k • • 454
JetBrains/CodeLlama-7B-KStack-clean
Text Generation • 7B • Updated • 54 • 5
JetBrains/CodeLlama-7B-KStack
Text Generation • 7B • Updated • 59 • 9