Comment by dipampaul17

With the K8V4 configuration providing 59% memory savings, you can effectively run contexts 2.4× longer on the same hardware. A model with a 2048 token context can now handle about 5000 tokens, while an 8K context model can reach approximately 19.5K tokens.

In practical terms, this means processing entire books at once on a MacBook, analyzing large codebases without splitting files, or maintaining comprehensive conversation history in chat applications.

The memory savings scale linearly with context length - the longer your context window, the more absolute memory you save. On my M4 MacBook with 8K context, I reduced KV cache from 176MB to 72MB. At 128K context, that same percentage saving would free up gigabytes.

This optimization is most valuable when you're context-window limited rather than model-parameter limited. If you're hitting OOM errors due to long inputs rather than large model weights, KVSplit directly addresses your bottleneck.