Independent · sourced · Updated June 2026
Best AI Chatbot Assistants (2026)
The cheapest ai chatbot assistants is ChatGPT at $0/mo. 7 offer a free tier (ChatGPT, Claude, Google AI (Gemini)). This page compares 7 options on entry price, free tier, HIPAA/SOC 2 and best-for — every figure linked to its source, updated June 2026.
7 options compared on price, free tier, compliance and fit — ranked cheapest-first. Every figure links to the vendor's own page and the date we captured it; quote-only tiers show “—”, never a guess.
Key takeaways
- Cheapest: ChatGPT at $0/mo (Free).
- Typical paid price: from $4.99/mo, median $17/mo, up to $20/mo — across 7 with published pricing.
- Free tier: ChatGPT, Claude, Google AI (Gemini), Grok (xAI), Microsoft Copilot, Mistral Vibe (Le Chat), Perplexity.
- HIPAA-ready: Claude.
- Tracked: 7 vendors, data current through 2026-06-15.
Comparison
| # | AI Chatbot Assistant | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | ChatGPT | $0/mo Free | Yes | — | Yes | general-purpose AI assistant | en.wikipedia.org |
| 2 | Claude | $0/mo Free | Yes | Yes | — | long-context document analysis | claude.com |
| 3 | Google AI (Gemini) | $0/mo Free | Yes | — | — | Google Workspace users | gemini.google.com |
| 4 | Grok (xAI) | $0/mo Free | Yes | — | — | X (Twitter) power users | en.wikipedia.org |
| 5 | Microsoft Copilot | $0/mo Copilot (Free) | Yes | — | — | Microsoft 365 power users | en.wikipedia.org |
| 6 | Mistral Vibe (Le Chat) | $0/mo Free | Yes | — | — | European users and EU data-residency requirements | mistral.ai |
| 7 | Perplexity | $0/mo Free | Yes | — | — | real-time research with citations | techcrunch.com |
Prices are the lowest published self-serve monthly rate as captured on the linked source. Annual-billing and usage details are on each vendor's record in our open dataset.
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Frequently asked questions
What is the cheapest ai chatbot assistants?
ChatGPT has the lowest published entry price at $0/mo (Free), as of 2026-06-15.
How much does ai chatbot assistants cost per month?
Across the 7 ai chatbot assistants with published paid pricing, the median starting price is $17/mo, ranging from $4.99/mo to $20/mo, as of 2026-06-15. 7 also offer a free tier.
Which ai chatbot assistants have a free plan?
ChatGPT, Claude, Google AI (Gemini), Grok (xAI), Microsoft Copilot, Mistral Vibe (Le Chat), Perplexity offer a free tier.
Which ai chatbot assistants support HIPAA?
Claude state HIPAA support (a BAA). Always confirm current scope with the vendor.
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How we compiled this
Prices fetched from official vendor pricing pages via WebFetch on 2026-06-14 where accessible. OpenAI's chatgpt.com/pricing returned HTTP 403; ChatGPT Plus ($20/mo) and Pro ($200/mo) prices corroborated from Wikipedia (en.wikipedia.org/wiki/ChatGPT) and cross-referenced against multiple news reports (TechCrunch, Gizmodo, CNBC). ChatGPT Team pricing ($25/seat monthly, $20/seat annual billed annually) is widely reported but official page was not accessible; recorded as per reporting. Claude pricing fetched directly from claude.com/pricing (301 redirect from anthropic.com/pricing). Google AI plan pricing could not be fetched from one.google.com (geolocated to EUR) or gemini.google.com (requires sign-in); USD prices sourced from 9to5Google tag page (June 2026 coverage, post-I/O 2026 pricing). Perplexity pricing page returned HTTP 403; Pro ($20/mo) and Max ($200/mo) prices sourced from TechCrunch article dated 2025-07-02. Microsoft Copilot Pro ($20/user/month) sourced from Wikipedia (en.wikipedia.org/wiki/Microsoft_Copilot); M365 Copilot Business ($18/user/month annual) fetched from microsoft.com/en-us/microsoft-365-copilot/pricing. Mistral Vibe (formerly Le Chat) pricing fetched directly from mistral.ai/pricing. All telephony fields (minutesIncluded, callsIncluded, overagePerMin, overagePerCall) are null on every plan — non-telephony vertical.
Last verified 2026-06-15. We re-check published prices and compliance on a recurring cadence and update this page when they change.
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