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Has ChatGPT Forgotten? AI Conversation Length Calculator

Paste an AI chat to estimate its token count and see how much of the model's context window it uses, so you know when the AI starts forgetting.

Estimated tokens used

0.0% of 128,000

0

Words
0
Unique words
0
Characters
0
Complexity score
0

Word lengths: 0 simple (≤4 letters), 0 moderate (5–7), 0 complex (8+).

How it's calculated

Your text is analyzed in your browser and is never uploaded.

Having a conversation with Chat GPT and Chat GPT seemingly forgets the project you appear to be working on? Did it ruin your project? Well you’re in luck. Because that happened to me and it made me build this tool.

With the rapid evolution of artificial intelligence, numerous professionals and enthusiasts turn to AI for solutions, ranging from simple queries to intricate project requirements. Among them was a dedicated individual, deep into the development of a significant project. Ok it was me. Me. I’m the guy. I confidently relied on the guidance of AI, then found myself in a conversation that spanned topics, directions, and most importantly, programming languages. As the dialogue went deeper, the expansive breadth of the conversation surpassed a critical threshold. Suddenly, what began in PHP morphed insidiously into Python code, leading to a system-wide clash and an unexpected halt in the project. The AI, with its vast memory reservoir, had lost the essence of the conversation’s beginning, a limitation unbeknownst to many.

Understanding firsthand the big role context plays in meaningful AI interactions, I made this calculator that I can have on in the background where I can paste my conversation and not forget how close I am to the wall. Right now (September, 2023) the current AI, most people use Chat GPT-4, can review about 36,000 tokens at once or 24,000 words of the conversation. That’s not exactly right (different words and sentences can count differently) but it’s not bad. Do NOT lose track of where you are in the conversation or you end up in the position I was in.

*Update to tool 9/7/2023: A user has suggested trying to factor in the difference in words. We’ve applied weights based on the complexity of the word. Those weights are below:

				`Score = (Simple words × 1) + (Moderate words × 2) + (Complex words × 3)`

But Why Can’t AI Remember?

Artificial Intelligence, particularly in its advanced incarnations like neural networks, operates through a complex interplay of algorithms, data processing, and memory management.

At the core of AI interactions is the concept of “contextual memory.” This isn’t memory in the traditional sense, where data is stored indefinitely. Instead, it’s a transient form of recall, where the AI retains and references recent inputs to generate coherent and contextually appropriate outputs.

Think of it as a stream of consciousness in a conversation: while the present thought is clear and the recent ones are still in mind, the very initial ones start to fade as the conversation progresses.

The reason for this transient retention is twofold. First, maintaining an infinite conversation state would be computationally intensive, possibly slowing down response times as the system sifts through an ever-growing set of previous interactions.

Second, it is a privacy measure. By not retaining user data for extended periods, the AI ensures that user information is not persistently stored, thereby bolstering data security and user trust.

However, this design choice does mean that in exceptionally lengthy interactions, the AI might “forget” the beginning of the conversation, leading to potential context drifts and inconsistent outputs.

Frequently Asked Questions

›Why does ChatGPT forget the beginning of a conversation?

AI chat models can only read a fixed amount of text at once, called the context window, measured in tokens. When a conversation grows past it, the oldest messages are dropped or summarized, so the model no longer “remembers” them.

›What is a token?

A chunk of text the model processes, often a word or part of a word. In English, one token averages about four characters, or roughly three quarters of a word, so 1,000 tokens is about 750 words.

›How big is a context window?

It depends on the model and plan. Older models had 4K to 32K tokens; many current models offer 128K to 200K tokens, and some reach 1 million. Check your provider’s documentation for the exact figure.

›How accurate is the token estimate?

It is an approximation based on four characters per token. Each model family uses its own tokenizer, and code, numbers, and non-English text often use more tokens per character.

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