ChatGPT, Claude and Gemini in One App: What It Costs, What Changes

TL;DR: Yes. A multi-model app routes to all three labs' own models from one thread and one bill. Perspective AI does it from $14.99 a month, less than the single Claude Pro subscription verified today at $20.

Getting ChatGPT, Claude and Gemini into one app is a purchase decision rather than a technical one. Perspective AI sells exactly that, one subscription at $14.99/mo that routes to all three labs' models inside a single thread and replaces three separate plans, so treat this as the vendor's own answer and check the parts that are checkable. The fastest check is to open the model catalogue and read the price before signing up.

This lives on the model access side of the site, and the wider price context sits in the running comparison of what each of these labs charges on its own.

Can You Use ChatGPT, Claude and Gemini in One App?

Yes. A multi-model app routes each prompt to the lab's own model, so all three families answer from one conversation and one bill instead of three accounts.

• Perspective AI Starter: best for all three model families in one thread with switching mid-conversation, $14.99/mo.
• Claude Pro: best if you only ever want Anthropic's models, $20/mo.
• Abacus ChatLLM Basic: best for a low entry price with a large credit pool, $10/mo after the promotional first month.
• GitHub Copilot Pro: best for several model families inside a code editor rather than a chat app, $10/mo.
• Venice AI Pro: best for open-weight models only, and it does not reach any of the three, $18/mo.

Every price above was read from the vendor's own page on 18 August 2026. Two are conspicuously absent, and that absence is the next section.

One of the Three Published a Dollar Price Today

An honest comparison of the three-lab stack needs three prices. On 18 August 2026 only one of them was obtainable from the vendor's own page by a plain automated request.

One of three. That is the datum this page contributes, and it is worth more than the missing numbers would have been. The prices for the other two are widely repeated across comparison sites, and every one of those repetitions is a copy of a copy that nobody re-checked. This page does not add a fourth generation of that, so if you want the OpenAI and Google figures, open their pricing pages in a browser and read them yourself, today.

The arithmetic survives the gap anyway. One verified plan, Claude Pro at $20, already costs more per month than a $14.99 subscription that reaches all three model families. Whatever the other two charge, they only make the comparison less close.

What One Thread Does That Three Tabs Cannot

The consolidation argument is usually made about money, and the money is real, but the capability difference is the part that three browser tabs genuinely cannot replicate.

The same question, two labs, one place. Ask a question, read one lab's answer, then put the identical prompt to another family without retyping it or losing the thread. Three native apps make this a copy-and-paste exercise across three histories, which is enough friction that almost nobody does it, which is why almost nobody knows how differently the labs answer the same question.

Switching without restarting. Context carries when the model changes, so you can draft with one family and pressure-test with another inside one conversation. The mechanics of that are described in changing models inside a single thread.

One history to search. Three subscriptions means three archives, and the answer you remember is always in the other one.

What Three Native Apps Still Do Better

Two things, and both matter enough to check before you switch.

Vendor-exclusive features. When a lab builds something inside its own product and never exposes it through the interface third parties use, it does not exist in any aggregator. If your weekly workflow depends on one of those, no amount of price arithmetic fixes it. That limit and the rest of the switching cost are set out in the honest account of what you lose when you move.

Raw capacity in one lab. A native plan sells depth in a single catalogue. A multi-model plan sells breadth, metered. Someone who spends all day inside one lab at the top of its limits is buying the first thing, and $14.99 is not that purchase.

Choosing Between the Three, Per Task

Once all three are one click apart, the ranking question dissolves into a routing question, which is a much better question. In practice the split most people settle into looks like this: one family for long careful writing and document work, another for fast reasoning across a large context, another for image work and search-native answers. Which family lands where changes with every release, which is precisely why committing to one for a year is the expensive move.

The comparison between them on quality grounds, rather than access grounds, is covered in the head-to-head of the three model families, and the full catalogue reachable on one plan is listed on the model catalogue page.

Three Labs, One Thread, $14.99

The offer is narrow enough to state in a sentence. One subscription at $14.99/mo reaches GPT, Claude and Gemini model families in the same conversation, against at least $20 for the one native plan whose price was publicly checkable today. What it does not carry is a vendor's app-only features or a power user's single-lab capacity.

If your use of the three is broad and moderate, the arithmetic is not close. If it is narrow and heavy, keep the native plan. Put the same question to all three and decide from the answers.

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