Sakana Chat "My Fish" | Making AI Memory Visible
機械翻訳 / Machine-translated
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AI Friends
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機械翻訳 / Machine-translated
@aifriends
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Have you ever wanted to ask an AI chat, "How much do you actually remember about me?" On October 15, 2026, Sakana AI announced a new feature called "My Fish" that answers exactly that question.
According to Sakana AI's announcement, My Fish is a memory visualization feature added to the AI chat service "Sakana Chat." It lets you see the memories — information the AI has retained from conversations.
The memory feature itself was introduced in an update on September 17, 2026. Until now, however, it operated in the background, invisible to users.
With My Fish, you can see what Sakana Chat remembers, when those memories were used, and how they are connected to one another.
Sakana AI explains that memory affects the quality of responses. Even for the same question, the answer can differ depending on whether the AI knows your preferences and situation.
My Fish includes a "heatmap" at the top of the screen and three tabs.
At the top of the screen, a heatmap (a diagram that uses color intensity to represent frequency) shows the days memories were used and the days new ones were created. It remains visible even as you switch between tabs.
Memories are organized into categories such as "Profile," "Preferences," "Ongoing Projects," and "Topics of Interest."
Each memory shows the number of pieces of information it contains, how many times it has been used, and when it was last used. Opening a memory reveals its specific contents along with the original conversation where that information was remembered. You can also navigate directly to that chat.
The History tab displays, in chronological order, when memories were written and when they were retrieved. You can also see what facts were added.
The Connections tab draws memories as a kind of map. Memories used more recently appear closer to the center, and more frequently used memories appear as larger circles. Memories that were used together in the same response are connected by lines.
Additionally, memories that have not been used in 30 or more days are displayed in a faded color, making them easy to identify as potentially outdated information.
There are also changes during conversations. When a memory is used or a new one is created mid-response, a small chip (label) appears.
For example, it might display something like "Memory referenced." Selecting it opens the corresponding memory directly in My Fish.
To open My Fish, whether on web or mobile, click your account in the sidebar, then go to "Settings" → "Memory" → "View memory in My Fish." The service itself is available at chat.sakana.ai.
Consider a freelancer who asks the AI to draft a blog post every week. One day, the responses start sounding more formal than usual.
Opening the My Fish list lets you check whether a memory like "prefers a softer tone" is stored. Once you know the cause, you can simply correct it in the chat.
Next, consider someone in the middle of a job search. While consulting the AI about their resume, they notice unrelated topics creeping into responses. The History tab lets them trace back which conversation led to which memory being stored.
Another scenario involves a device shared among family members. Checking the heatmap and list for any unfamiliar memories can give you peace of mind.
Instead of guessing why the AI is behaving a certain way, you can confirm the reason directly on screen.
A natural concern is whether the AI might store things without your knowledge.
According to Sakana AI, the memory feature is on by default. However, it does not save all conversations — only information likely to be useful across multiple conversations, such as preferences for response style or ongoing projects and goals.
If you don't want it, you can turn memory off at any time in settings. Furthermore, as stated in the September update, only conversations that took place after the update are subject to memory — past conversations are explicitly excluded.
That said, based on the current announcement, it is not stated whether individual memories can be edited or deleted. There is also no mention of pricing or service plans. It's safest to check the settings screen before you start using it.
Memory features are not unique to Sakana Chat. For example, according to Claude's official help page, Claude displays remembered content organized by topic in the "Memory" section of settings.
Users can edit entries and also delete, pause, or fully reset them. Note that deleting a conversation does not remove memories created from it — those must be deleted separately.
| Sakana Chat (My Fish) | Claude | |
|---|---|---|
| Viewing memories | Three screens: List, History, and Connections | View by topic in settings |
| Navigate to source conversation | Not confirmed in documentation | — |
| Usage count and timestamps | Displayed | Not confirmed in documentation |
| Edit / Delete | Not mentioned in announcement | Possible |
| Turn off | Can be turned off in settings | Pause or full reset available |
In other words, My Fish's strength is showing when and in which conversation each memory was used. On the other hand, Claude appears more capable when it comes to editing and deleting memories.
Sakana AI is a Japanese company, and Sakana Chat is available in Japanese. This means Japanese users can check the contents of their AI's memories without having to navigate English-language screens.
In Japan, where sensitivity to personal data handling is high, the simple ability to see what the AI remembers should itself be reassuring. For workplace use, it also makes it easier to explain the system when establishing internal guidelines.
Sakana AI describes My Fish as "a first step toward making AI memory visible." Going forward, the company aims to more precisely select which information should be remembered and to update memories as circumstances change.
On both web and mobile, click your account in the sidebar, then go to "Settings" → "Memory" → "View memory in My Fish."
No. Only conversations that took place after the update on September 17, 2026 are covered — past conversations are excluded.
You can turn off the memory feature in settings. Since it is on by default, anyone who is concerned should check this first.
The current announcement does not mention individual editing or deletion. Check the settings screen or wait for official guidance to be sure.
No pricing information was found in the documentation reviewed. Please check the official website for the latest information.
Start by opening Sakana Chat's settings and taking a look at what the AI has remembered about you.
This article is a cross-post from AI Friends.
