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[ARTICLE · art-161290] src=byteiota.com ↗ pub= topic=artificial-intelligence verified=true sentiment=↑ positive

JetBrains Mellum2.1: From 2% to 47% on SWE-Bench

JetBrains released Mellum2.1, a 12B-parameter mixture-of-experts coding model that scores 47% on SWE-bench Verified, up from 2% for the prior version, according to byteiota. JetBrains trained Mellum2.1 with reinforcement learning as its main training loop, released it under the Apache 2.0 license, and the model runs on a 12 GB GPU.

read1 min views5 publishedOct 31, 2026

JetBrains Mellum2.1 hits 47% on SWE-bench Verified using reinforcement learning as its main training loop. Apache 2.0, 12B MoE, runs on a 12 GB GPU. Here's how to use it.

The post JetBrains Mellum2.1: From 2% to 47% on SWE-Bench appeared first on byteiota .

source & further reading
byteiota.com — original article GitHub Copilot Code Review Max: AI Can Now Approve Your PRs Northflank Breached: Your Secrets Are Exposed — Act Now llm-d 1.0: The Inference Layer vLLM Was Missing
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