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Head to head · 2026

DeepSeek vs Z.ai

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

DeepSeek

The 2025 model that rattled markets with its training cost claims

4.5Free

Visit DeepSeek (opens DeepSeek in a new tab)

Z.ai

Zhipu AI's free chat interface for its GLM model family

4.2$10/mo

Visit Z.ai (opens Z.ai in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: DeepSeek does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    DeepSeek

    4.5 against 4.2

  • Same job?

    Yes

    Both are Chatbots tools

Side by side

Compared onDeepSeekZ.ai
Our rating4.5Better4.2
Starts atFree$10/mo
Free planYesYes
CategoryChatbotsChatbots
PlansFreeFrom $10/mo
Key features
  • Open-weight models available for independent deployment
  • Reasoning-focused model variants alongside general chat
  • Backed by quantitative hedge fund High-Flyer
  • Triggered significant market reaction in January 2025
  • Free web and mobile chat access
  • Built on Zhipu AI's GLM model family
  • One of China's more established AI labs, founded in 2019
  • Free chat interface
  • Multiple model generations developed since founding
  • General chat and reasoning capabilities
Pros
  • Open-weight release allows independent verification and deployment
  • Free to use with no subscription required for standard chat
  • Demonstrated competitive capability at reported lower training cost
  • Backed by one of China's longer-established AI research labs
  • Completely free to use
  • Multiple generations of model development behind the current product
Cons
  • Data handling and privacy practices warrant independent research given its origin
  • Less mature consumer feature set than longer-established Western competitors
  • Rapid, disruptive rise means longer-term reliability is still being established
  • Less international brand recognition than some newer competitors
  • Data handling practices warrant independent research given its origin
  • English-language documentation and community support are thinner than Chinese-language resources
CompanyDeepSeek, founded 2023Zhipu AI, founded 2019

Prices come from each vendor's pricing page, last checked 20260629. Check the vendor before you buy.

FAQ

Questions people ask

Is DeepSeek better than Z.ai?

In our reviews DeepSeek scores 4.5 and Z.ai scores 4.2. The better pick depends on the job. DeepSeek: The 2025 model that rattled markets with its training cost claims. Z.ai: Zhipu AI's free chat interface for its GLM model family.

Which is cheaper, DeepSeek or Z.ai?

DeepSeek: free. Z.ai: from $10/mo.

Do DeepSeek and Z.ai have free plans?

Yes, both have a free plan.

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