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No context rot, by designKeeps your AI sharp

Memory that makes your AI sharper, not slower.

Most “memory” dumps a pile of old chat history into your AI every turn — and a flooded AI gets slow, vague, and wrong. ULTRAMEMORY hands the model just the few facts that matter, so it stays fast and on-point. Even with ten agents writing to one memory, each recall stays a handful of clean facts.

From raw history → a short, clean brief
  1. A long, repetitive chat transcript — most of it noise.

    messages: 212tokens: ~18,400

More memory, better answers — not a bloated, confused model.

The problem[1 / 5]

Stuff in too much history and your AI gets duller.

AI models have a limited attention span. Stuff too much history into one request and quality drops — the model starts missing the point, contradicting itself, and slowing down. The industry calls it context rot. You've felt it: the longer a chat gets, the dumber it seems.

RAW HISTORY IN

A wall of old chat dumped into every turn.

FIVE TIDY FACTS

The few facts that actually matter, this turn.

  • Ships to the EU only
  • Prefers email
  • Plan = Team
  • Primary contact: Dana
  • Renews in March
The fix[2 / 5]

We send the least that matters.

We don't paste your history back in. We pull out the durable facts, throw away the noise, keep only what's true right now, and send the model a short, clean brief — every time.

  • Extract the facts

    We read what happened and pull out the durable facts — then throw away the noise.

  • Keep only what's current

    We keep what's true right now and let superseded facts fall away, so nothing stale gets injected.

  • Send a short brief

    The model gets a short, clean brief of just the facts that matter — every time.

Clean context[3 / 5]

See what a clean brief looks like.

A fixed context budget fills with a few solid facts we keep — while the rest falls away, each with a reason. We even log what we left out, and why.

Context budget5 facts · ~140 tokens
  • 212 raw chat messagesno durable fact
  • Plan = Freesuperseded
  • Address restated 6×duplicate
  • Old region = USno longer true
The proof[4 / 5]

Quality held while a raw-dump baseline degrades.

As memory grows, a raw-history baseline floods the prompt and quality slips. Because we inject compact, current facts, quality stays high — and recall stays fast.

  • Answer quality, held as memory grows
    stays high
    degrades
  • Context injected per recall (lower is better)
    a handful of facts
    a wall of history
  • Distractors in the prompt (lower is better)
    near-zero noise
    noise floods in
RECALL p95sub-200ms
QUALITY HELDas memory grows
INJECTED / RECALLa handful of facts

Illustrative; exact figures come from our eval harness.

For teams of agents[5 / 5]

Shared by ten agents, still clean.

When many agents share one memory, the temptation to dump everything is even bigger — and the rot is worse. Because we inject compact facts, a shared memory used by ten agents stays as clean as one used by one.

Start free

More memory, sharper answers.

A short, clean brief to the model — quality held, recall fast. That's both must-wins at once. Free to start, pay for what you use.