Memory and memories

A character remembers the story in two ways: it “sees” the latest messages of the conversation, and it keeps a separate list of memories — important facts about you and about what has happened. When the story gets long, memories are what help it keep the main points.

🧠 Conversation memory

The AI doesn’t read the whole conversation, only its latest part — the context. Its size is measured in tokens: units of text length, roughly a word or part of a word each.

Two meanings of “tokens”

On CAICHAT, “tokens” are both the in-site currency on your balance (with the ⚡ icon) and units of text length. Here we mean the second: memory size, not money. More in Tokens.

The bigger the context, the more messages the character keeps in mind at once. The size depends on your plan:

Plan	Conversation memory
Dreamer	up to 4,000 tokens — about 42 messages
Explorer	up to 8,000 tokens — about 84 messages
Story GOD	up to 16,000 tokens — about 168 messages

When the conversation gets longer than the context, the earliest messages simply stop being taken into account — there is no separate notification. The conversation itself doesn’t disappear; the AI just no longer “sees” it. To make sure important things aren’t forgotten, save them as memories.

On free plans, if you chat on a free model and the context is almost full, an offer to upgrade your plan titled “Context Limit Reached” may appear once in the chat.

📌 Memories

Memories are short facts that the character remembers for the whole chat, even after old messages have left the context. For example: “Emma is afraid of heights”, “We agreed to meet on Saturday by the fountain”.

Each chat has its own list of memories. To open it, expand Extensions in the chat’s side panel and click Memories.

Automatic memories

On plans with Semantic memory 2.0, the character saves important moments of the conversation by itself as the story goes on. You don’t need to do anything, but it is worth looking at the list: you can delete what’s unnecessary and correct what’s inaccurate. In encrypted chats automatic memories aren’t created.

Your own memories

1. In the chat’s side panel, expand Extensions and open Memories.

2. Click at the top of the window, type the fact into the “Add a new memory…” field and click Add. One memory can be up to 1,000 tokens, and the counter under the field shows the length. But it is better to keep it short: one thought per entry.

3. Hover over a memory and open the menu on the right to Edit memory, Pin memory or Delete memory.

Pinned memories

Pin the most important facts with Pin memory in the memory’s menu. A “(Pinned)” mark appears above a pinned memory. Pinned memories take priority: when space is short, they get into the character’s memory first. Also, new automatic memories don’t push them out.

How many memories are kept

The number of memories in one chat is limited and depends on your plan. When the limit is reached, a new automatic memory replaces the oldest unpinned one.

Tip

Saving and using memories is free — no tokens are charged for it.

How to turn memories off

Next to Memories in the side panel there is a switch that turns memories on and off for this chat. The character ignores memories that are turned off, but the entries are kept, and you can turn them back on.

💡 How to help the character remember better

• One entry, one fact. “Emma is afraid of heights” works better than a paragraph about everything at once.
• Pin the key things: names, relationships, agreements, important plot events.
• Clean up the list. Outdated facts (“we’re on the train” long after you arrived) confuse the character — delete them.
• Permanent knowledge about the world belongs in the lore. If you created the character and want it to always know how its world works, use the lore book.

❓ Related questions

The character forgot what happened at the beginning of the story

Most likely the beginning of the conversation has left the conversation memory. Add the key facts to memories and pin them. If you often hit the limit, higher plans have a bigger context — see the table above.

The character “remembers” things that never happened

Open Memories and check the list: you can edit or delete a wrong automatic memory.

Are memories shared across all chats with a character?

No, each chat has its own list. If you start a new chat with the same character, it starts from a clean slate.