AI Chat Aggregator: What It Is, How It Bills You, and When One Pays Off
AIHub
An AI chat aggregator is a single chat app that gives you models from several vendors (ChatGPT’s GPT models, Claude, Gemini, Grok, Llama, DeepSeek and others) behind one login and one bill, so you can pick the right model for each message or send the same prompt to two of them at once. It replaces several separate subscriptions with one, and the thing that decides whether it is a good deal is how it charges you for each message.
That last point is where aggregators differ most and where their marketing says least. Below is how they work, the four ways they bill, what a message really costs underneath, and the cases where you are better off with a vendor’s own app.
How an AI chat aggregator works
The vendors sell two things: their own consumer apps (ChatGPT Plus, Claude Pro, Google AI Pro) and API access billed per token. An aggregator buys the second and builds its own chat app on top. When you send a message, the aggregator forwards it to the vendor’s API, pays the per-token price, and shows you the answer in the same interface whichever model produced it.
Three consequences follow from that design:
- You get the models, not the vendor apps. Image generation in ChatGPT, Claude Code, Gemini inside Gmail and voice with video are features of the vendors’ own products. An aggregator only reproduces them if it builds its own version.
- Switching is free inside a conversation. You can draft with a cheap model and rewrite with a frontier one in the same thread, because both are API calls.
- The aggregator’s margin sits between you and the token price. That is fine, as long as you can see it. If you cannot work out what a message costs, you cannot compare the plan with anything.
The four billing models
Every aggregator we have looked at uses one of four schemes, or a mix.
| Billing model | How it works | Examples | What to check |
|---|---|---|---|
| Points budget | A monthly allowance of points; each model costs a set number of points per message | Poe | Points per message per model, and whether long messages cost more |
| Metered credits at list price | Credits map to the vendor’s own per-token price, so a message costs what the API charges | AIHub (Pro 19 dollars, 10,000 credits) | The credit-to-dollar rate and whether it is published |
| Flat plan with a usage ceiling | One price covers every model up to an unpublished limit | Magai (Standard 20, Pro 40, Ultra 200 dollars a month) | What happens at the limit: a slowdown, a hard stop or overage |
| Bring your own key | You buy the app once and pay the vendors directly through your own API keys | TypingMind (39 dollars once, plus your API usage) | How many keys and bills you are willing to manage |
Prices as listed on each vendor’s pricing page on 2026-10-24. A fifth option sits next to these: a router such as OpenRouter, which sells pay-per-token access to hundreds of models through one key and one balance. It is built for developers, but its chat page works as a bare-bones aggregator with no subscription at all.
The schemes are not equally comparable. With metered credits or your own keys you can compute the price of any message from the vendor’s published rates. With a points budget you can do it once you find the points table. With a flat plan and an unpublished ceiling you cannot do it at all, which does not make it a bad plan, but it does mean the only test is to use it for a month.
What a message costs underneath
Whatever the plan, the aggregator pays the vendor’s token price, so that is the floor. Using the list prices in our AI model API pricing data, re-checked on 2026-10-24:
| Message | Tokens in / out | Claude Sonnet 5 or GPT-6 Sol ($2 / $10) | Claude Opus 5.5 ($4 / $20) | Gemini 3.1 Pro ($2 / $12) |
|---|---|---|---|---|
| Short question | 1,000 / 500 | $0.007 | $0.014 | $0.008 |
| Real working prompt | 3,000 / 800 | $0.014 | $0.028 | $0.0156 |
| Ten-turn conversation | 39,000 / 5,000 in total | $0.128 | $0.256 | $0.138 |
| Same short question to two models side by side | 2 x (1,000 / 500) | $0.014 (Sonnet plus GPT-6 Sol) | n/a | n/a |
The ten-turn row is the one people underestimate. Every turn resends the earlier turns as input, so a conversation costs far more than the same number of single questions. On a metered plan that shows up as credits; on a flat plan it shows up as hitting the ceiling sooner.
Read against a 20 dollar plan, these floors are generous. Twenty dollars of model cost buys about 2,850 short questions or about 155 ten-turn conversations on a Sonnet-class model. On AIHub’s 19 dollar Pro plan, where one credit is a tenth of a cent of model cost, 10,000 credits covers about 1,400 short questions on Claude Sonnet 5, or about 700 side-by-side pairs of Sonnet and GPT-6 Sol.
When an AI chat aggregator pays off
It pays off when you would otherwise pay for more than one subscription. The common stack of ChatGPT Plus, Claude Pro and Google AI Pro is 59.99 dollars a month, and most people who carry it use one assistant daily and the others for second opinions. Second opinions are a per-message need, and per-message is exactly what an aggregator sells. The full arithmetic of that stack is in ChatGPT Plus alternative: one subscription for every AI model.
It also pays off when you want to choose models by evidence. Sending your own prompts to two models and reading the answers next to each other settles “which is better for my work” faster than any benchmark; the method is in how to compare AI models side by side, and our own task-by-task results are in ChatGPT vs Claude vs Gemini.
And it pays off for small teams, where one shared account replaces a different subscription per person and per preference. That is the first of the three places AI lands in a company, covered in where AI actually lands in a small business.
When it does not
Stay with a vendor’s own plan if you use one assistant for nearly everything, or if the features you rely on are app features rather than model features. ChatGPT Plus for image generation and voice, Claude Pro for Claude Code and its million-token context, and Google AI Pro for Gemini inside Gmail and Docs are all things an aggregator gives you the model behind, not the tool. Claude Pro vs ChatGPT Plus covers which of those two to pick if one assistant is enough.
Skip aggregators that will not tell you what a message costs. A points table or a published credit rate takes one minute to check; “unlimited” with a fair-use clause takes a month.
What to check before you pay
- Which models, and how current. The list should include the vendors’ current flagships, not last year’s versions, and say when it was updated.
- The price of one message. Find it per model, either as credits, points or a per-token rate. If you cannot, ask support before you subscribe.
- Side-by-side mode. If comparing models is part of why you want one, check it sends one prompt to several models at once rather than making you copy and paste.
- What happens at the limit. Top-ups, a slowdown or a hard stop until next month.
- Privacy terms. Whether chats are stored, for how long, and whether they are used for training.
- Your prompts travel with you. A saved prompt library that works across models is what makes switching models cheap.
If you are still deciding between an aggregator and a single vendor plan, best AI subscription ranks the main options by job, with prices checked this month.
