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Chatbase vs CustomGPT.ai

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper
Chatbase — $32/mo vs $99/mo for CustomGPT.ai
Free plan
Neither — Chatbase has paid plans only, CustomGPT.ai has paid plans only
Public API
Both have one
Best fit
Chatbase: SaaS and ecommerce teams deflecting repeat questions from existing documentation · CustomGPT.ai: Support teams turning an existing help centre into a self-serve answer bot
Trust score
About even — Chatbase 86, CustomGPT.ai 90

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

Side by side

FactChatbaseCustomGPT.ai
CategoryCustom GPTs & Bot BuildersCustom GPTs & Bot Builders
Pricing modelPaidPaid
Starts at$32/mo$99/mo
Public APIYesYes
Trust score86 / 10090 / 100
PlatformsWeb, APIWeb, API
CompanyChatbaseCustomGPT Inc.
Launched20232023
Last verifiedOct 15, 2026Oct 16, 2026

What our research says

Chatbase

The fastest route from a folder of help docs to a working support widget, and priced accordingly once real traffic arrives. Credits are the whole story: 700 messages a month on Hobby ($40, or $32 billed yearly) is a small site's volume, and the plans that carry real traffic cost $150 and $500 a month. There is no free plan to fall back on, so budget from expected conversations, not from the feature grid.

Pros

  • Crawl-and-embed setup produces a usable widget in an afternoon with no retrieval plumbing to write
  • Actions and human handoff mean it degrades into a ticket rather than a dead end
  • Every paid plan carries a 7-day trial, and the yearly toggle takes 20% off

Cons

  • The free plan is gone, so evaluation is limited to a 7-day trial
  • API access is gated to Standard at $150/month ($120 billed yearly), several times the entry price
  • Overage at $40 per 1,000 credits is steep next to the in-plan rate on Pro
  • Each plan includes a single agent; more cost $300 per agent a year, and removing branding $1,188 a year

CustomGPT.ai

A packaged retrieval stack for teams that want a grounded chatbot without assembling their own; the connector breadth and compliance paperwork are what the price buys. At $99/month against a four-figure query cap, the cost per answer is high until volume justifies it.

Pros

  • Answers are constrained to ingested content, which materially cuts invented answers versus open chat
  • 100+ ingestion connectors and a very wide file-format list mean less pre-processing work
  • API supports programmatic agent creation, which suits agency resale
  • SOC 2 Type II certification is unusual at this price point

Cons

  • Query allowance is the real ceiling and it is low relative to the price
  • The step from Standard to Premium is five times the cost with nothing in between
  • Answer quality still depends entirely on how clean and current your source content is
  • No free plan; evaluation is limited to a trial

Which one fits

Choose Chatbase if you need

  • SaaS and ecommerce teams deflecting repeat questions from existing documentation
  • Solo founders who need a support presence before they can hire one
  • Agencies standing up a branded bot per client, provided each client funds its own agent slot

Choose CustomGPT.ai if you need

  • Support teams turning an existing help centre into a self-serve answer bot
  • Agencies spinning up client-branded bots and reselling them through the API
  • Companies that need SOC 2 evidence before any AI touches internal documents

Chatbase vs CustomGPT.ai: the questions people ask

Is Chatbase cheaper than CustomGPT.ai?

On published entry prices, Chatbase starts lower — $32/mo against $99/mo for CustomGPT.ai. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Which has a public API, Chatbase or CustomGPT.ai?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

Browse all Custom GPTs & Bot Builders →