Clean Data Beats Bigger Models: Inside Bee-8B’s 15M QA Breakthrough

15 M QA Pairs, 8 B Parameters, One Belief: Clean Data Is the Final Lever – Inside Bee-8B “ A short tweet started the buzz. An engineer benchmarked InternVL3.5-8B (semi-open) against Bee-8B (fully open) on ChartQA. Bee won 86.7 → 86.3. His follow-up: “Bee did it with data, not dollars.” 30 k likes later, the community is asking: Can a data-centric pipeline really out-run the parameter arms-race? This post answers that question—step by step, number by number. The Three Reefs Sinking Open-Source MLLMs Problem Typical Symptom Root Cause Noisy data Hallucinates “oranges” when asked to solve a math function 24 …