CustomGPT.ai vs Chatbase 2026: Which Website AI Chatbot Should You Buy?
CustomGPT.ai and Chatbase solve the same problem: turn your website and documents into an AI chatbot that answers customer questions. One charges flat monthly plans starting at $99; the other meters you by the message credit from $0 to $500/month. This comparison gives you a decision, not a tie.
This comparison is based on both companies' official pricing pages, documentation, and public user feedback — not hands-on testing. Pricing reflects what was publicly visible in September 2026. Disclosure: we earn a commission if you sign up for CustomGPT.ai through our links. That never buys a verdict — the honest pick is below either way.
Pricing head-to-head
| CustomGPT.ai | Chatbase | |
|---|---|---|
| Entry price | $99/mo Standard ($89 annual) | Free ($0, 50 message credits) |
| Mid tier | $499/mo Premium ($449 annual) | Hobby $40/mo, Standard $150/mo |
| Top tier | Enterprise (custom) | Pro $500/mo |
| Pricing model | Flat plans with query limits | Message credits (one reply can cost multiple credits) |
| Free option | 7-day trial (credit card required, auto-renews) | Free plan, no credit card |
| White-label | Premium ($499/mo) and up | Paid branding removal (~$1,188/year per reports) |
| API access | Included from Standard | Available on paid plans |
The pricing story in one line: Chatbase is cheaper to try and cheaper at low volume; CustomGPT.ai is cheaper to understand. A single Chatbase AI reply can consume multiple credits depending on the model, so your real cost per conversation depends on configuration choices you may not have made deliberately. CustomGPT.ai's Standard plan includes 1,000 queries/month for $99 — when you hit the limit, responses stop rather than silently inflating a bill. Whether that's better depends on your volume discipline.
The real cost over a year
- Low volume (~300 conversations/month): Chatbase Hobby ($40/mo) = $480/year. CustomGPT.ai Standard ($99/mo) = $1,188/year. Chatbase saves ~$700 — if 300 conversations fit in Hobby's credit allowance.
- Medium volume (~1,000 conversations/month): CustomGPT.ai Standard = $1,188/year, flat. Chatbase at this volume likely lands on Standard ($150/mo) or needs overage credits = $1,800+/year. CustomGPT.ai is cheaper and predictable.
- High volume (5,000+ conversations/month): CustomGPT.ai Premium ($499/mo) = $5,988/year with 5,000 queries/month included. Chatbase Pro ($500/mo) = $6,000/year. Roughly tied on sticker price — but Chatbase's credit consumption per reply makes the real number harder to forecast. Edge: CustomGPT.ai for predictability.
- White-label: Both charge extra to remove branding, and neither is cheap about it. Budget accordingly if the widget sits on a customer-facing site.
Feature comparison
| CustomGPT.ai | Chatbase | |
|---|---|---|
| Content ingestion | Websites, 1,400+ doc formats, YouTube, podcasts, audio | Websites, docs, common file types |
| Anti-hallucination | Core positioning; citations on every response | Standard RAG behavior, less emphasis on citations |
| Query limits (entry) | 1,000 queries/mo on Standard | 50 message credits on Free; Hobby credit allowance |
| Multi-language | 92+ languages | Broad, less publicized |
| RAG API | Included from Standard | Available on paid plans |
| Compliance | SOC 2 Type 2, GDPR, no training on your data | Standard privacy terms |
| Ease of setup | No-code; trial requires credit card | No-code; genuinely free to start |
| Team seats | 3 on Standard, 5 on Premium | Extra members ~$300/agent/year per reports |
Where CustomGPT.ai wins decisively is trust mechanics: source citations on every answer, explicit anti-hallucination positioning, and enterprise compliance (SOC 2 Type 2, GDPR) as standard. For a customer-facing support bot where a confident wrong answer is worse than no answer, that matters. Where Chatbase wins is friction: you can have a working bot in an afternoon with no credit card and no sales conversation.
Accuracy and trust: the real differentiator
Both platforms use retrieval-augmented generation, but they invest in different places. CustomGPT.ai's entire positioning is anti-hallucination — every response carries citations back to the source document, so a customer (or your team) can verify the answer instead of trusting it blindly. It also states publicly that it does not train on or share your business data, with PII removal options and SOC 2 Type 2 plus GDPR compliance.
Chatbase's documentation describes a more standard RAG setup without the same emphasis on citations or published anti-hallucination claims. For an internal FAQ bot or a low-stakes marketing assistant, that gap may never matter. For a support bot that answers billing, medical-adjacent, or legal-adjacent questions, the citation layer is the difference between a tool your compliance team approves and one they don't. If accuracy is the reason you're comparing these two, this section is the whole decision.
Setup and onboarding
Chatbase wins on speed-to-first-bot. Sign up free, paste a website URL or upload documents, embed the widget — the path from zero to a working demo is genuinely an afternoon's work, with no credit card and no billing conversation. CustomGPT.ai's 7-day free trial is also quick to start, but it requires a credit card at signup and auto-converts to a paid plan if you don't cancel from the billing page — a small but real friction point, and a classic trial-trap pattern to watch for.
Longer term, the onboarding burden flips. CustomGPT.ai's flat plans mean the second month looks like the first. Chatbase's credit model means you need to learn how many credits each reply type consumes, which models are configured, and how auto-recharge overages behave — operational knowledge that compounds as your volume grows. Budget an hour to understand Chatbase's billing; budget zero ongoing hours for CustomGPT.ai's.
Who should pick which
Pick CustomGPT.ai if: - The chatbot will answer customer questions where accuracy matters (support, documentation, compliance-adjacent content) - You want predictable flat pricing rather than credit arithmetic - You need SOC 2 / GDPR posture for a business deployment - You train on video or audio content (YouTube, podcasts) — Chatbase's ingestion is narrower - You want a RAG API included without negotiating tiers
Pick Chatbase if: - You want to test the concept this week for $0, no credit card - Your volume fits comfortably in the $40/month Hobby tier - You're API-first and comfortable managing credit consumption - You don't need citations, white-labeling, or enterprise compliance right now
The honest verdict
For most businesses buying a chatbot that customers will actually rely on, CustomGPT.ai is the pick — the citation-backed answers, flat pricing, and compliance posture are worth the $99/month floor. Chatbase is the better experiment: if you're not sure a chatbot belongs in your business at all, its free tier answers that question for $0. Start with Chatbase to validate demand; move to CustomGPT.ai when the bot becomes load-bearing. Read our full CustomGPT.ai review for the complete breakdown, or browse the wider field in our 7 best Chatbase alternatives.
Rating: 4.5/5 — best for businesses choosing between the two leading custom AI chatbot platforms.
Start your 7-day free trial on the official CustomGPT.ai site and test it with your actual help docs before committing.
FAQ
Is CustomGPT.ai really better than Chatbase?
For most business deployments, yes — primarily because of citable, anti-hallucination-focused answers and predictable flat pricing. Chatbase is better for experimentation and very low volumes. The honest answer depends on whether the chatbot is load-bearing (CustomGPT.ai) or exploratory (Chatbase).
How much does Chatbase cost per month in 2026?
Chatbase's published tiers are Free ($0, 50 message credits), Hobby ($40/month), Standard ($150/month), and Pro ($500/month), with annual billing roughly 20% cheaper. Real costs depend on credit consumption — a single AI reply can use multiple credits — so check your configured models against the official pricing page.
Does CustomGPT.ai have a free plan?
No free plan, but a 7-day free trial with full Standard features. A credit card is required at signup and the trial auto-converts to a paid plan unless you cancel from the billing page. Chatbase is the better free option with its $0 tier (50 message credits).
Can I white-label either chatbot?
Both charge extra. CustomGPT.ai removes its branding on Premium ($499/month) and above. Chatbase's branding removal is a paid add-on reported at around $1,188/year. If the widget sits on a customer-facing site, budget for this on either platform.
Which is easier to set up?
Chatbase — free signup, no credit card, working bot in an afternoon. CustomGPT.ai is also no-code but the trial requires a credit card. For ongoing administration, CustomGPT.ai is simpler (flat plans); Chatbase requires learning its credit system as volume grows.
Should I consider anything besides these two?
Yes — see our 7 best Chatbase alternatives for the wider field, including Botpress for developer teams, Tidio and Crisp for chat-plus-AI bundles, and Intercom Fin or Zendesk AI if you already live in those ecosystems.