GPT-X3-150M hits 33.05 on Open SLM Leaderboard with ~27× less training compute than SmolLM2-135M
datdanboi25 · reddit · 2026-10-25
AxiomicLabs' GPT-X3-150M claims #1 on the Open SLM Leaderboard with an Intelligence Index of 33.05 vs HuggingFace SmolLM2-135M's 27.13 — billed as the most capable generalist base model under 150M parameters ever evaluated.
Key details: a GDN2/GQA hybrid architecture, roughly 27× fewer training compute tokens, and training done entirely on consumer hardware. Weights are open on Hugging Face.
Related event: GPT-X3-150M tops Open SLM Leaderboard with fraction of training compute(2 posts)→
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