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Head to head · 2026

Sigma AI Browser vs SYSTRAN

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

Sigma AI Browser

Private browser with an agent that fills forms and books things, plus an offline local model

3.8Free

Visit Sigma AI Browser (opens Sigma AI Browser in a new tab)

SYSTRAN

Fifty years of machine translation, with on-premise and custom model training

4.0$18.99/mo

Visit SYSTRAN (opens SYSTRAN 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: Sigma AI Browser does not list a price

  • Free plan

    Sigma AI Browser

    Only Sigma AI Browser has one

  • Higher rating

    SYSTRAN

    3.8 against 4.0

  • Same job?

    Yes

    Both are Productivity tools

Side by side

Compared onSigma AI BrowserSYSTRAN
Our rating3.84.0Better
Starts atFree$18.99/mo
Free planYesBetterNo
CategoryProductivityProductivity
PlansFree
  • Translate Pro Plus$25.99 per user/mo, or $18.99 per user/mo on an annual commitment
  • Translate Pro Premium$49.99 per user/mo, or $34.99 per user/mo on an annual commitment
  • Translate Pro API$15.49 per 1 million characters, billed monthly
  • EnterpriseQuote only
Key features
  • AI agent for form filling, booking and data gathering
  • Eclipse local model running offline
  • Chat with page and deep research
  • Built-in ad blocker and encrypted private profiles
  • Quick Translate and extension support
  • 55 languages across 30+ file formats
  • Translate Server and Private Cloud for on-premise deployment
  • Model Studio for training custom translation models
  • Neural Fuzzy Adaptation for translation memory
  • Browser extension and speech-to-text translation
Pros
  • A local offline model is what makes the privacy claim credible
  • Agent, chat, research and translation in one browser
  • macOS, Windows and iOS builds available now
  • On-premise and private cloud for data that cannot leave the building
  • Custom model training on your own terminology
  • Fifty years of translation-specific engineering behind it
Cons
  • No pricing published, only a discount code
  • The local model is weaker than a hosted one
  • An agent with browser control acts inside every logged-in session
  • No pricing figures on any of the three tiers
  • Six product lines makes choosing the right one confusing
  • Translation memory adaptation only helps if you already have one
CompanySigmabrowser OUSYSTRAN by ChapsVision

Prices come from each vendor's pricing page, last checked 20260814. Check the vendor before you buy.

FAQ

Questions people ask

Is Sigma AI Browser better than SYSTRAN?

In our reviews Sigma AI Browser scores 3.8 and SYSTRAN scores 4.0. The better pick depends on the job. Sigma AI Browser: Private browser with an agent that fills forms and books things, plus an offline local model. SYSTRAN: Fifty years of machine translation, with on-premise and custom model training.

Which is cheaper, Sigma AI Browser or SYSTRAN?

Sigma AI Browser: free. SYSTRAN: from $18.99/mo.

Do Sigma AI Browser and SYSTRAN have free plans?

Only Sigma AI Browser has a free plan.

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