Best Free Unlimited AI Chatbot for Business?

ChatGPT, Claude, Pi, Grok and DeepSeek: personal free tiers

Personal assistants can be useful for drafting, brainstorming and general questions. They are not automatically a website support system with a business knowledge base, visitor-facing widget and shared team inbox. Free access also does not establish unlimited use. The verified details describe limited features for ChatGPT, limited messages for Claude, rate limits for Pi, and usage caps or limited access for Grok. DeepSeek has a free plan for general use, though that alone does not establish unlimited messages.

That distinction matters when customers ask about returns, shipping or product details. A personal chatbot’s free access is not the same thing as a system that answers website visitors from the company’s own policies and routes uncertain questions to the support team. A personal assistant may suit general questions, while a website support workflow calls for a tool built around the channel and team process.

Boei: paid plans and a trial

Boei’s listed plans start at $19/month and rise to $49/month and $129/month; the verified pricing states that these are annual prices. Boei offers a 7-day free trial, which is different from a permanent free plan. Boei’s help information describes training on a website, uploaded documents or pasted text, with source citations and escalation to a human when the AI lacks confidence. The verified pricing details do not give a plan-by-plan allowance for seats, conversations, extra usage or branding removal, so those costs should not be assumed from the starting price.

ChatBot.com and eesel: watch the usage unit

ChatBot.com charges per user, with AI resolutions included by plan. Essential includes 10 AI resolutions, Growth includes 200, and Enterprise includes 2,000 or more; additional resolutions can be bought individually or in a 50-pack. ChatBot.com offers a 14-day free trial; the trial should not be confused with an ongoing free plan. eesel’s listed Team plan includes up to 1,000 interactions per month and Business up to 3,000. Its trial provides 100 credits, where a ticket or chat uses one credit. An interaction, resolution, credit and conversation are not interchangeable measures. Compare the definition as well as the headline quantity.

For Chatling and Denser, current prices and free-plan limits are not verified here, so their total costs cannot be compared in this guide. In every case, ask what happens when the allowance is used, whether seats are included, and whether the feature you need is part of the base plan or an add-on.

How to compare chatbot pricing for a support team

Start by matching the pricing unit to the work: ChatBot.com lists per-user pricing and AI resolutions, while eesel lists monthly interaction allowances. Those units describe different things, so compare how each vendor counts usage rather than treating the quantities as equivalent. A trial also differs from a recurring free tier: Boei lists a 7-day trial, ChatBot.com a 14-day trial, and eesel a trial with 100 credits. For a business website, include the practical cost of the support workflow in your decision: whether an inbox is available, how a person takes over, and whether the plan’s knowledge limits fit your content. momo’s Free allowance is 30 AI conversations once, while paid plans include monthly allowances. This makes the renewal period as important as the headline number. See chatbot pricing plans and usage costs for a broader pricing comparison, or chatbot free trial costs and limits when evaluating trial terms.

What a support team could pay

A useful cost estimate starts with the team size, the unit being counted and the monthly allowance. Seat-based pricing and usage pricing can stack: a low per-user starting price may not include much AI usage, while a plan with a larger allowance may have a higher fixed fee. Add-ons, overages or a required tier change can also alter a bill. Do not count a personal chatbot’s free access as a substitute for a shared customer-support inbox.

For a solo user, ChatBot.com’s lowest listed price is $19 per user/month with annual billing or $25 per user/month with monthly billing. That Essential plan includes 10 AI resolutions. This gives a known subscription price, but the total for a higher resolution need depends on additional usage: each extra resolution is listed at $0.99, or 50 cost $49.50. The subscription and extra usage should be budgeted separately.

For a five-person team, the same ChatBot.com per-user rate would produce a subscription total of $95/month on annual billing or $125/month on monthly billing, before any extra AI resolutions. This is arithmetic from the listed per-user price, not a claim that the plan allowance grows with each seat. The plan’s included resolution allowance remains the stated 10 for Essential unless the vendor’s current terms say otherwise. A comparable full total for five users cannot be established without knowing the required usage and applicable plan terms.

For a ten-person team, that same arithmetic gives $190/month on annual billing or $250/month on monthly billing before extra resolutions. Again, this does not establish whether the included AI allowance changes by seat. ChatBot.com’s Growth plan is listed at $79 per user/month billed annually or $99 per user/month billed monthly, with 200 AI resolutions. Choose a tier only after checking how the included allowance applies to your team.

Boei’s listed starting price is $19/month on annual billing, but the verified details do not provide a seat price or plan-by-plan usage caps, so totals for solo, five-person and ten-person teams cannot be responsibly calculated. eesel’s Team plan is $239/month billed annually or $299/month monthly and includes up to 1,000 interactions/month; it does not provide a comparable per-seat total in the verified details.

A flat plan fee is easier to forecast when its included allowance matches your actual traffic and when the inbox and handoff fit your support workflow. With momo, the known paid fees are EUR 29, EUR 129 and EUR 399 per month. The included conversation allowance and teammate limits differ by tier, so select a plan against both expected support volume and the people who need inbox access. Do not treat the Free plan’s one-time allowance as recurring monthly capacity.