What 7B, 70B and 400B Actually Mean: A Jargon-Free Explainer on Model Size and Local Deployment
_jaydeepkarale · x · 2026-10-11
A widely shared jargon-free explainer breaks down what the 7B/70B/400B numbers next to AI models mean:
- They refer to parameter counts — learned numerical values shaping what a model knows and how it responds.
- 7B: often runs locally on a laptop with quantization, good for simpler tasks.
- 70B: much more demanding, typically needs substantial RAM/VRAM or cloud inference.
- 400B+: impractical on consumer hardware, served via cloud.
Larger models usually mean greater capability, but slower and more expensive to run.
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