Neural Toons Original

AI's Secret Slowness: It's Reading, Not Writing!

05 July 2026 · The Neural Feed
AI's Secret Slowness: It's Reading, Not Writing! – Neural Toons comic

“Turns out, AI needs better reading glasses more than a faster pen!”

The story behind the toon

What happened: New research reveals that for complex AI tasks, most of the waiting time (94-99%) isn't the AI generating new words, but rather it's reading and understanding the entire conversation history. This 'prefill' speed is more dependent on how well the AI stores and accesses its memory (KV cache) than on its overall size. This means future AI improvements for long tasks will focus on better memory systems.

This Neural Toon is based on the story “AI benchmark reveals prefill speed is 94-99% of agentic workload time, not token generation”.

Read our summary of the story · original source

Comic transcript

Panel 1 – Jordan: Ever feel your AI just... stares at the chat history?

Panel 1 – Taylor: Oh yeah! My 'Agentic Assistant' takes forever to 'contextualize'!

Panel 1 – Fact: Waiting for AI to 'think' or catch up on a long conversation.

Panel 2 – Jordan: That 'staring' is 94% of the wait time. Not writing new words.

Panel 2 – Taylor: WHOA! My 'token stream' isn't the bottleneck?!

Panel 2 – Fact: AI spends 94-99% of its time reading old messages, not generating new ones.

Panel 3 – Jordan: For long tasks, focus on AI's 'memory', not its 'brain size'.

Panel 3 – Taylor: More 'memory' means faster AI! My workflow needs this!

Panel 3 – Fact: For faster AI on long tasks, prioritize models with better 'memory' capacity.

Panel 4 – Jordan: These 'super-memory' AIs cost a fortune. Not for everyone.

Panel 4 – Taylor: My cheap AI won't be a 'memory champ'? Ugh!

Panel 4 – Fact: Powerful 'memory' AIs are expensive and not widely available yet.

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