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-Base-Pretrain
Text Generation • 12B • Updated • 293 • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-SFT
Text Generation • 12B • Updated • 431 • 25
JetBrains/Mellum2-12B-A2.5B-Instruct-SFT
Text Generation • 12B • Updated • 348 • 14
JetBrains/Mellum2-12B-A2.5B-Thinking
Text Generation • 12B • Updated • 2.28k • 335
JetBrains/Mellum2-12B-A2.5B-Instruct
Text Generation • 12B • Updated • 2.59k • 84
JetBrains/Mellum2-12B-A2.5B-Base
Text Generation • 12B • Updated • 17.1k • 24
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 489 • 10
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q4_K_M
Text Generation • 12B • Updated • 117k • 15
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q6_K
Text Generation • 12B • Updated • 534 • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-Q8_0
Text Generation • 12B • Updated • 215k • 7
JetBrains/Mellum2-12B-A2.5B-Instruct-GGUF-BF16
Text Generation • 12B • Updated • 52 • 2
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-MXFP4_MOE
Text Generation • 12B • Updated • 523 • 13
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q4_K_M
Text Generation • 12B • Updated • 3k • 44
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q6_K
Text Generation • 12B • Updated • 807 • 12
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-Q8_0
Text Generation • 12B • Updated • 529 • 21
JetBrains/Mellum2-12B-A2.5B-Thinking-GGUF-BF16
Text Generation • 12B • Updated • 74 • 6
JetBrains/Mellum-4b-dpo-python-gguf
4B • Updated • 34 • 5
JetBrains/Mellum-4b-dpo-python
Text Generation • 187k • Updated • 76 • 10
JetBrains/Mellum-4b-dpo-all-gguf
4B • Updated • 470 • 10
JetBrains/Mellum-4b-dpo-all
Text Generation • 187k • Updated • 208 • 11
JetBrains/Mellum-4b-sft-all
Text Generation • 4B • Updated • 307 • 16
JetBrains/Mellum-4b-sft-all-gguf
4B • Updated • 551 • 7
JetBrains/Mellum-4b-sft-kotlin-gguf
4B • Updated • 50 • 6
JetBrains/Mellum-4b-sft-kotlin
Text Generation • 4B • Updated • 79 • 22
JetBrains/Mellum-4b-sft-python
Text Generation • 4B • Updated • 86 • 56
JetBrains/Mellum-4b-sft-python-gguf
4B • Updated • 131 • 45
JetBrains/Mellum-4b-base-gguf
4B • Updated • 290 • 42
JetBrains/Mellum-4b-base
Text Generation • 4B • Updated • 2.38k • 454
JetBrains/CodeLlama-7B-KStack-clean
Text Generation • 7B • Updated • 76 • 5
JetBrains/CodeLlama-7B-KStack
Text Generation • 7B • Updated • 78 • 9