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Free vs $5 vs $20 AI apps: what each tier actually gets you

Free tiers of ChatGPT and Claude are demos — capped, small-context, ad-supported. A $5 subscription covers everyday use with functionally unlimited chats. $20 buys frontier access most people rarely need. The ladder, honestly.

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Free vs $5 vs $20: what each tier actually gets you

Free tiers of ChatGPT and Claude are demos: capped, small-context, and ad-supported on some tiers. A $5 subscription covers everyday use with functionally unlimited chats. $20 buys frontier access most people rarely need.

The ladder at a glance

Tier Price/month The model you get Ads Real limits
ChatGPT Free $0 GPT-5.6 Luna only, 27K context Yes Limited uploads, voice, memory
ChatGPT Go $8 Luna only Yes Fewer caps than Free, same small model
Plainly $5 Best available capable model, chosen for you No Fair use
ChatGPT Plus / Claude Pro $20 / $17–20 Frontier (Sol / Fable-class) No Generous
ChatGPT Pro / Claude Max $100–200 / from $100 Frontier at maximum capacity No High

Prices from the OpenAI and Anthropic pricing pages, as of 29 August 2026.

What free actually gets you

The current free ChatGPT offer is "unlimited text chats with GPT-5.6 Luna" — limited messages with uploads, limited voice, limited memory, 27K of instant context. The word unlimited is doing a lot of work there. Luna is the small model. The context is small. The caps arrive exactly when a task gets interesting, and the ads arrive sooner. Free is priced at zero because serving full-capability answers costs money. The limits are how it stays free. Where those limits come from is the whole story in why is ChatGPT so expensive, and what hitting them feels like is in the ChatGPT message limit.

What $20 gets you

The premium tiers are good. Frontier access, voice that works, generous limits — if you use a frontier model daily for intense work, $20 is a fair price and I would not talk you out of it. For the email, planning, quick questions and drafting that fill most days, $5 is enough.

The $5 middle

The tier the big labs do not offer. A $5 app routes every question to a capable model automatically — no model picker, no credits, no reduced demo model behind the paywall. The whole reason this is possible is that efficient open-source models got good while nobody was watching, which is the story in why Chinese AI models cost less. The full verdict on whether $5 is enough lives in is a $5 AI subscription good enough.

The option to skip: shopping for models yourself

The API route — OpenRouter and its roughly 400 models, as of August 2026 — exists and works. It is also a hobby. Comparing per-token prices, managing credits and picking a model per task is a perfectly fine way to spend an evening, and a waste of one if your goal is answers. Everyday users should not start there.

The honest limit

If your work needs the frontier daily, no $5 tier will do, and no $5 company will claim otherwise — that caveat is stated in full in is a $5 AI subscription good enough. For everyone else, the $15-a-month gap between the $5 plan and the cheapest premium tier buys nothing you would notice in a normal week. The ads in the free and Go tiers, meanwhile, are the subject of their own piece: ads in AI apps.

Frequently asked questions

Is the free ChatGPT good enough?+

For one short question at a time, yes. Its small context window and usage caps arrive in longer chats, and ads appear on the free and Go tiers. It is the demo.

What is a cheap ChatGPT alternative?+

A flat-monthly app that serves full-capability models with no credit-token gymnastics and no reduced free-tier model. Plainly is $5 a month, unlimited chat, fair use.

Do I need ChatGPT Plus?+

Only if you need frontier capability every day. For everyday questions, emails and planning, a $5 plan covers it — the quality gap on everyday tasks is smaller than the price gap.

Why is Plainly cheaper than ChatGPT Plus?+

Efficient open-source models cost a fraction to serve. Free-tier limits exist to protect margins on expensive models — remove the expensive model and the limit goes with it.

Will AI subscription prices drop?+

At the low end, they already have — a fixed level of capability costs less every quarter.

TH

· Works at an AI startup

Writes about cheap AI models and honest AI tooling. .

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