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 • 433 • 25
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 311 • 14
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 4.41k • 332
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 3.92k • 82
JetBrains/Mellum2-12B-A2.5B-Base
Text Generation • 12B • Updated • 19.9k • 23
JetBrains/Mellum2-12B-A2.5B-Base-Pretrain
Text Generation • 12B • Updated • 298 • 12
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 324 • 9
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q4_K_M
Text Generation • 12B • Updated • 50.5k • 13
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q6_K
Text Generation • 12B • Updated • 360 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q8_0
Text Generation • 12B • Updated • 76.9k • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-BF16
Text Generation • 12B • Updated • 102 • 2
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 332 • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 3.23k • 42
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 682 • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 621 • 21
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 116 • 6
JetBrains/Mellum-4b-dpo-python-gguf
4B • Updated • 18 • 5
JetBrains/Mellum-4b-dpo-python
Text Generation • 187k • Updated • 32 • 10
JetBrains/Mellum-4b-dpo-all-gguf
4B • Updated • 193 • 9
JetBrains/Mellum-4b-dpo-all
Text Generation • 187k • Updated • 76 • 9
JetBrains/Mellum-4b-sft-all
Text Generation • 4B • Updated • 56 • 15
JetBrains/Mellum-4b-sft-all-gguf
4B • Updated • 130 • 6
JetBrains/Mellum-4b-sft-kotlin-gguf
4B • Updated • 72 • 6
JetBrains/Mellum-4b-sft-kotlin
Text Generation • 4B • Updated • 46 • 22
JetBrains/Mellum-4b-sft-python
Text Generation • 4B • Updated • 51 • 56
JetBrains/Mellum-4b-sft-python-gguf
4B • Updated • 100 • 45
JetBrains/Mellum-4b-base-gguf
4B • Updated • 254 • 42
JetBrains/Mellum-4b-base
Text Generation • 4B • Updated • 1.84k • 453
JetBrains/CodeLlama-7B-KStack-clean
Text Generation • 7B • Updated • 31 • 5
JetBrains/CodeLlama-7B-KStack
Text Generation • 7B • Updated • 32 • 9