KVCache.ai launches open-source web-based KV Cache Size Calculator for models including DeepSeek V4 Flash, Qwen3, GLM, Kimi, and MiniMax

It shows you exactly how much memory your computer needs to run AI chats or documents up to a million tokens long.

Pick any model like DeepSeek V4 Flash, tweak length or precision (e.g., INT4 instead of full FP16), and it instantly calculates the exact GPU/ RAM footprint plus per-token cost—revealing why DeepSeek’s hybrid sparse tricks need only ~2.9 GiB while others like MiniMax demand 236 GiB at the same length. This lets new users pick feasible setups or optimize without crashing on huge contexts.