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OneChater

Sends one prompt to GPT, Claude and Gemini at once and keeps a shared memory of user context across models.

Free plan

At a glanceswept Oct 18, 2026

24 linking domains

Emerging

For
Professionals who use several AI models daily and want shared memory across them.
Price
Free planpricing page, read Oct 22, 2026
Runs as
CLI
Used for
  • Send one prompt to several models at once
  • Compare answers from GPT, Claude and Gemini side by side
  • Keep project context across different AI models
read off onechater.com on Oct 22, 2026
Worth knowingcomputed from what we read · each with its source
  • Publishes llms.txt, a file written for AI assistantsonechater.com ↗
  • Launched on Product Hunt on Jun 13, 2026Product Hunt ↗
Pricingpricing page, read Oct 22, 2026

Free plan

Alternatives in Developer toolsby use, among tools still maintained

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

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

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Questions this page answers
  • What is OneChater?

    Sends one prompt to GPT, Claude and Gemini at once and keeps a shared memory of user context across models. It is listed in the Atlas under Developer tools.

  • Who is OneChater for?

    Professionals who use several AI models daily and want shared memory across them.

  • How much does OneChater cost?

    OneChater has a free plan, per its pricing page on 2026-10-22.

  • Is OneChater free?

    Yes, OneChater has a free plan, per its pricing page on 2026-10-22.

  • Do people use OneChater?

    Emerging.

  • What are alternatives to OneChater?

    In Developer tools, by use: GlobalGPT, Mem0, NinjaChat, Cosmic, SquaredUp, Camber.

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.

How we read every tool → · By INITE Atlas Desk