AI companion research

Memory is the feature people test most often when they compare AI companions. Apps advertise memory in different words, and the differences show up in how a detail returns later, whether a correction sticks, and whether a conversation continues during a call.

Riho publishes its testing method openly so you can run the same checks on any app. This section is where the evidence and results live.

The memory benchmark methodology

The AI companion memory benchmark methodology defines six scenarios: recalling personal details, keeping separate people apart, applying corrections, remembering changed plans, continuing a topic across a call, and recalling the current time and context. Each scenario has a repeatable prompt set and a scoring rubric.

The methodology also documents controls that reduce coaching: prompts that do not repeat the user’s original words, checks that run after a gap, and results that record the app version, plan, and model provider used.

Benchmark results status

Riho has not yet published a controlled memory benchmark run. Publishing results without completed runs would be misleading, so the current status is:

• Method: published and repeatable
• Runs: not yet performed
• Results: pending

When runs are completed, results will list the date, the app versions, the plans, and the exact prompt set for each app. Until then, the claims each app makes are labeled as claims, not measured results.

What you can test today

You do not need Riho or any other app to start testing. The memory guide explains the checks you can run in a few conversations: share a preference, correct it later, ask about it after a gap, and try the same topic in a call. Run the same test on every app you compare, and record what you asked and when you asked it.