# Why pay for four AI subscriptions? Multi-model apps explained

By the GO AI Team · August 21, 2026 · We build one of these apps, so the framing is interested — judge the trade-offs, not the source.

> **TL;DR:** If you regularly use more than one model, a multi-model app replaces several subscriptions with one and lets you change models *inside* a conversation. You trade away immediacy on each provider's newest product features. Live in exactly one assistant? Subscribe direct.

## The arithmetic

Consumer plans for the major assistants cluster around $20/month each (as of August 2026). Two is noticeable; four is a line item. Aggregators exist because that maths is uncomfortable and because most people's usage is spread across models rather than concentrated.

## What you gain

- **Switching mid-thread** — the real feature, and the one four separate apps can't give you. Draft on GPT-5, hand the same conversation to Gemini for a long document, ask Grok what happened this morning.
- **One bill, one login, one searchable history.**
- **Cheap comparison** — asking two models the same question and reading the disagreement is a good habit; the disagreement is where the information is.
- **Bundled extras** — in our case image generation across three model families, video via Grok, voice mode, a photo editor.

## What you give up

- **Feature lag** — models arrive via API quickly; a provider's newest experimental *modes* may be app-only.
- **A middle layer** — one more party sees your prompts. Read the app's policy rather than assuming.
- **Deep ecosystem integration** — if a provider's assistant is wired into tools you live in, a third-party app won't reproduce that.
- **Usage shape** — heavy media generation is usually metered, not flat-unlimited. Price it out if you generate all day.

## Who should go direct

| You are… | Better fit | Why |
|---|---|---|
| Using one model for nearly everything | That provider | You'd pay for unused breadth |
| Dependent on newest experimental features | That provider | API surfaces lag app surfaces |
| Deep in one company's ecosystem | That provider | Integration is the product |
| Using 2+ models weekly | Multi-model app | Cost and switching both compound |
| Also generating images/video | Multi-model app | Usually bundled |
| Unsure which model you prefer | Multi-model app | Comparing is how you find out |

## The better question

Not "which app has the most models" — anyone can add an API. Ask whether switching preserves your conversation, whether the app is honest about what's metered, and whether the extras replace things you'd otherwise buy.

Model-by-model: [which model for which task](https://goaichat.app/blog/which-ai-model-for-which-task) · [GPT-5 vs Gemini](https://goaichat.app/blog/gpt-5-vs-gemini) · [Grok 4 vs GPT-5](https://goaichat.app/blog/grok-4-vs-gpt-5)

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We build [GO AI Chat](https://goaichat.app/chat) — GPT-5, Gemini, Grok 4, and DeepSeek in one iOS app.

More: [GO AI Blog](https://goaichat.app/blog) · [support@goaichats.com](mailto:support@goaichats.com)