Introducing Mellum2: A 12B Mixture-of-Experts Model by JetBrains
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AI & ML interests
Reliable and context-aware coding assistance
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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 • 437 • 25
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 305 • 14
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 5.09k • 331
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 4.52k • 82
JetBrains/Mellum2-12B-A2.5B-Base
Text Generation • 12B • Updated • 21.1k • 23
JetBrains/Mellum2-12B-A2.5B-Base-Pretrain
Text Generation • 12B • Updated • 260 • 12
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 361 • 9
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q4_K_M
Text Generation • 12B • Updated • 36.4k • 13
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q6_K
Text Generation • 12B • Updated • 386 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q8_0
Text Generation • 12B • Updated • 51.9k • 6
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-BF16
Text Generation • 12B • Updated • 106 • 2
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 339 • 11
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 3.14k • 42
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 1.76k • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 652 • 20
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 137 • 6
JetBrains/Mellum-4b-dpo-python-gguf
4B • Updated • 20 • 5
JetBrains/Mellum-4b-dpo-python
Text Generation • 187k • Updated • 28 • 10
JetBrains/Mellum-4b-dpo-all-gguf
4B • Updated • 199 • 9
JetBrains/Mellum-4b-dpo-all
Text Generation • 187k • Updated • 88 • 9
JetBrains/Mellum-4b-sft-all
Text Generation • 4B • Updated • 62 • 15
JetBrains/Mellum-4b-sft-all-gguf
4B • Updated • 140 • 6
JetBrains/Mellum-4b-sft-kotlin-gguf
4B • Updated • 79 • 6
JetBrains/Mellum-4b-sft-kotlin
Text Generation • 4B • Updated • 27 • 22
JetBrains/Mellum-4b-sft-python
Text Generation • 4B • Updated • 44 • 56
JetBrains/Mellum-4b-sft-python-gguf
4B • Updated • 104 • 45
JetBrains/Mellum-4b-base-gguf
4B • Updated • 301 • 42
JetBrains/Mellum-4b-base
Text Generation • 4B • Updated • 2.07k • 451
JetBrains/CodeLlama-7B-KStack-clean
Text Generation • 7B • Updated • 24 • 5
JetBrains/CodeLlama-7B-KStack
Text Generation • 7B • Updated • 25 • 9