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SPECIFICTION
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Onyx vs Z.ai

Onyx

onyx.app

Z.ai

chat.z.ai

Side by side

FigureOnyxZ.ai
Price from$20/mo$12.60/mo
Free planYes—
Free trialYes—
Open sourceYes—
WebYesYes
WindowsYesYes
macOSYesYes
LinuxYesYes
APIYesYes
Self-hostedYes—
Plans published33
Spec score · AI chatbots and assistants9.0 (#12)7.7 (#51)
Desktop platformsThe native desktop app is available for Windows, macOS, and Linux and connects to an existing Onyx deployment.ZCode provides installers for macOS, Windows, and Linux; Linux is marked beta.
File uploadsYesYes
FoundedG2 lists Onyx AI as serving customers since 2023 and gives 2023 as its founding year.The company history says ZhipuAI was founded in 2019, originating from Tsinghua University's technological achievements.
Image generationYesYes
IntegrationsThe product advertises more than 50 synced connectors and names Slack, Google Drive, Confluence, Salesforce, GitHub and Jira among supported sources.The site lists Discord, Lark, and WeChat connections, and marks Telegram as coming soon.
SupportThe Business plan includes Community Support; Enterprise lists Dedicated Support and an Enterprise SLA.The terms direct users to submit complaints and reports by emailing [email protected] or [email protected].

Plans

Onyx

  • Business$20 a month
  • Community EditionFree
  • EnterprisePriced on request

Onyx pricing →

Z.ai

  • GLM Coding Lite$12.60 a month
  • GLM Coding Pro$56 a month
  • GLM Coding Max$117.60 a month

Z.ai pricing →

In their own words

Onyx

Onyx connects enterprise knowledge so people and AI agents can use relevant context in answers. It searches indexed sources in parallel and presents documents while enforcing each source's permissions. More than 50 connectors sync connected tools in the background and support hybrid semantic and keyword search. The Business plan lists chat and search, major LLM access, custom agents, MCP/OpenAPI actions, web search, deep research, code interpreter, and image generation. Business costs $20 a month, billed annually at $20 per user per month, for teams of any size, with 40+ app connectors and Community Support. Onyx provides APIs for messages, agents, LLM management, actions, and user authentication. Slack integrations can provide responses and agents; Microsoft Teams and Zendesk are described as coming soon. Deployments can run in a customer's cloud or on bare metal, including on-premise and fully air-gapped environments. The site says documents and embeddings can remain in customer infrastructure, data is not used for training, and permissions are checked at query time. Native Windows, macOS, and Linux apps connect to an existing deployment.

Visit onyx.app

Z.ai

Z.ai has no write-up on Specifiction yet; its figures are above.

Visit chat.z.ai