o3

OpenAI frontier reasoning model — best on complex STEM and competition math

Specifications

ArchitectureTEXT

Parameters-

Familyo-series

VRAM (Q4)API

reasoningopenaiflagship

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Refined Llama 3 with superior following

Mobile-optimized small model

Ultra-light edge deployment

Quantization levels and overhead breakdown.

Comparing NVIDIA and AMD for 2026.