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Whisper

Stores and retrieves user and company context for AI agents to remember across sessions.

At a glanceswept 2026-10-13

≈ 2visits/mo

Emerging · estimate, read 2026-09-21

  • Whisper2
  • #1 NVIDIA12.6M
  • LLM operations median24
For
Teams building AI agents that need to remember user context and company knowledge across sessions.
Price
Free plan · From $9/mopricing page, read 2026-09-21 ↗
Activity
Maintainedrelease 4 months ago · site updated 3 months ago
Company
Domain since 2026domain registered
Runs as
API
What people do with itread off retaindb.com on 2026-09-21
  • Store and recall user preferences and conversation history for agents
  • Build shared company knowledge bases agents can query and understand
  • Enable agents to improve support and coding tasks through accumulated memory
The companyeach fact with its source · read 2026-09-24
  • Domain since2026domain registered
Your datawhat they publish, each line with its page · read 2026-10-09

These are Whisper's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read 2026-10-10

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in LLM operationsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All LLM operations tools →

Questions this page answers
  • What is Whisper?

    Stores and retrieves user and company context for AI agents to remember across sessions. It is listed in the Atlas under LLM operations.

  • Who is Whisper for?

    Teams building AI agents that need to remember user context and company knowledge across sessions.

  • How much does Whisper cost?

    Whisper has a free plan; paid plans start at $9/mo, per its pricing page on 2026-09-21.

  • Is Whisper free?

    Yes, Whisper has a free plan, per its pricing page on 2026-09-21.

  • Do people use Whisper?

    Emerging: ≈ 2 visits/mo · estimate, 2026-09.

  • Is Whisper still maintained?

    Maintained: release 4 months ago · site updated 3 months ago.

  • Is Whisper safe?

    We do not audit vendors. What Whisper publishes, read 2026-10-09: a trust center.

  • How do I cancel Whisper?

    In its own words (terms of service, 2026-10-09): “Our refund policy includes the following commitments: Monthly subscriptions are non-refundable, but you may cancel at any time to avoid future charges.”

  • Does Whisper give refunds?

    In its own words (terms of service, 2026-10-09): “Our refund policy includes the following commitments: Monthly subscriptions are non-refundable, but you may cancel at any time to avoid future charges.”

  • What are alternatives to Whisper?

    In LLM operations, by use: Supermemory MCP, Nerra, Phoenix Grove Systems™, memgram, Paxs, bourdon.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.