Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
AutoGPT
Pros
+Fully open source — self-host for free with Docker
+Pioneer of the autonomous agent paradigm
+Maximum flexibility for technical users
+No vendor lock-in on the self-hosted path
Cons
−No free hosted tier — cloud plans billed annually only
−GDPR and SOC2 not confirmed from official sources
−Team plan listed as 'coming soon' — no multi-user cloud option yet
−Steeper learning curve than no-code alternatives
Grammarly
Pros
+SOC 2 Type II and ISO 27001 certified — strongest compliance in the writing category
+Works across browser, desktop, Word, Google Docs, and email with one install
+Pro tier confirmed at £10/mo in GBP — transparent UK pricing
+Explicit opt-out from AI model training available in account settings
Cons
−Trains on user writing by default — opt-out required
−GDPR compliance not explicitly confirmed on accessed official pages
−Free AI prompt limit (100/mo) may feel restrictive for daily users
Our take— Grammarly wins
Based on our comparison of published pricing, features, and compliance data, Grammarly scores 8.1/10 to AutoGPT's 7.1/10. Grammarly pulls ahead with SOC 2 certification and ISO 27001 certification. AutoGPT counters with a no-training-on-your-data policy. Pick Grammarly if SOC 2 certification matters; pick AutoGPT if a no-training-on-your-data policy matters.