The best Chatbase alternatives in 2026, with their real prices
Every website chatbot we get compared with, priced from the vendor’s own page and dated. Some of them are cheaper than us per message, and this page says which. The Biggest Nerd is an AI chatbot for small-business websites that answers customers from your own pages and products, and says so when it doesn't know.
Prices checked October 2026.
Website chatbots, side by side
Published prices, October 2026. “Credits” and “messages” are each vendor’s own unit; where a reply can cost more than one, it says so.
| Product | Published plans | Remove branding | Cheaper per message than us? |
|---|---|---|---|
| The Biggest Nerd | $49/mo for 1,000 replies; $149/mo for 5,000 replies; $449/mo for 20,000 replies | No fee | — |
| Chatbase | $40/mo for 700 message credits; $150/mo for 4,000 message credits; $500/mo for 15,000 message credits | $1,188 a year add-on | Not per message; a smaller bill at low volume |
| SiteGPT | $59/mo for 4,000 messages (cheap model); $129/mo for 10,000 messages (cheap model); $429/mo for 40,000 messages (cheap model) | +$39/mo | Yes |
| CustomGPT | $99/mo for 1,000 queries; $499/mo for 5,000 queries | See their pricing page | No |
| Botsonic | $19/mo for 1,000 messages; $49/mo for 3,000 messages; $299/mo for 12,000 messages | +$49/mo | Yes |
| Chatling | $25/mo for 1,750 credits; $75/mo for 6,000 credits; $295/mo for 35,000 credits | +$35/mo | Yes |
| Wonderchat | ~$124/mo (annual) for 5,000 message credits | See their pricing page | No |
On every The Biggest Nerd plan one answer is one reply, lead capture is included, and there is no branding fee. Yearly billing is 12 months for the price of 10, and new monthly plans get 30% off the first 3 months. Work out your own monthly cost.
Each one, in a sentence
Chatbase alternative →
The best-known website chatbot. Credits per reply vary by AI model, and branding removal is extra.
Better at: Being a general-purpose bot builder. It offers a choice of models, more integrations and actions, and it will train on arbitrary documents for use cases that have nothing to do with a shop.
SiteGPT alternative →
Cheaper per message on its budget model; the better model uses 10x credits and branding is +$39/mo.
Better at: Volume on a budget model. If the cheaper model answers well enough for your site, SiteGPT gives you more messages per dollar than we do.
CustomGPT alternative →
Strong for large knowledge bases. $99 for 1,000 queries; $499 for 5,000.
Better at: Larger knowledge bases and bigger organisations: it is built to sit on top of document libraries and internal content, not only a small business's website.
Botsonic alternative →
Cheapest per message here ($19 for 1,000), but branding removal is +$49/mo.
Better at: Price per message. $19 for 1,000 and $49 for 3,000 are lower than ours, and if you are happy with their logo on your site it is the cheaper choice.
Chatling alternative →
Cheap credits, but credits per reply vary by model and branding is +$35/mo.
Better at: Value at volume on cheaper models: 35,000 credits for $295 is more than our Scale plan's allowance for less money, if their cheaper models suit you.
Wonderchat alternative →
About $124/mo billed yearly for 5,000 credits.
Better at: A longer feature list aimed at teams and larger knowledge bases. If you already run it and use those features, check what you would give up before moving.
Helpdesks with AI
A different purchase: these are support desks for teams, with AI added. If you have agents answering tickets every day, they are built for you; if nobody on your team answers chat, they are more than you need.
Intercom alternative →
A full helpdesk. Fin AI is $0.99 per outcome on top of seats from $29.
Pricing (October 2026): From $29 per seat per month, plus $0.99 for every outcome its Fin AI agent resolves.
Tidio alternative →
Live chat and helpdesk first. Lyro AI starts at $32.50 for 50 conversations.
Pricing (October 2026): The Lyro AI agent from $32.50 a month for 50 conversations; the Growth helpdesk plan from $49 a month for 250 billable conversations.
Crisp alternative →
A multichannel inbox. Plans include $5–$75 of AI credit rather than a number of answers.
Pricing (October 2026): $45, $95 and $295 a month, which include $5, $25 and $75 of AI usage credit respectively.
Zendesk alternative →
Enterprise helpdesk priced per agent, with AI as an add-on.
Pricing (October 2026): Support plans from about $19 per agent per month, Suite from about $55, with AI features sold as further add-ons.
Questions
What is the best Chatbase alternative?
It depends on what you are paying Chatbase for. If price per message is everything and you can live with a vendor's logo, SiteGPT, Botsonic, Chatling sell more messages per dollar. If you want leads captured and no logo, The Biggest Nerd counts one answer as one reply, includes lead capture from $49 a month and has no branding fee.
Is The Biggest Nerd the cheapest AI chatbot?
No. Per message, SiteGPT, Botsonic, Chatling are cheaper on their published prices. Where we can come out ahead is the total bill for a business that wants lead capture and no vendor logo: against Chatbase and Botsonic, once branding removal and lead-capture credits are counted, Starter is the smaller bill at around 1,000 replies a month. SiteGPT on its cheaper model and Chatling stay cheaper even then — the difference is that one answer here is always one reply, whatever model or action is involved.
How were these prices checked?
Read from each vendor's own pricing page in October 2026, and linked from each comparison. Prices change, so check before you decide.
Try it next to what you have
3 days of every Growth feature, no card. Leave your current chatbot running while you compare the answers.