Checked 18 Sept 2026. HTTP 403
ChatGPT Plus
Like other first-party assistant subscriptions, a daily user's conversations are estimated to cost more through the published API than the subscription charges.
- Vendor
- OpenAI
- Category
- Assistant
- Tier
- Plus
- Price / month
- $20
- Est. API cost
- $40.50
- Est. markup
- 0.49×
- Price checked
- 13 Aug 2026
- Verification
- verified
What the price actually is
Billed monthly. Higher Pro and Business tiers exist and are not covered by this entry. OpenAI blocks automated requests to its pricing pages, so this figure cannot be machine-checked and is confirmed by hand.
The usage this is priced against
A daily user with 200 conversations a month, each carrying roughly 10,000 tokens of accumulated context and returning 700 tokens, answered by a large frontier model.
Someone using it half as much sees double the multiple. The assumption is the argument — if you disagree with it, the number below is not about you. Change it in the calculator.
The cost math, in full
Estimated monthly inference cost
Large frontier text model at $15.00 / 1M input tokens · 200 conversations at typical consumer thread length
Large frontier text model at $75.00 / 1M output tokens
Rates come from a dated rate card of representative published API prices, not from the vendor. Nobody outside these companies knows what they actually pay; volume discounts and in-house serving both push real costs below these figures, which makes every multiple here a floor rather than a ceiling.
Why this verdict, not the number
This is the product most people mean when they say they pay for AI, and it is not a wrapper around anything — it is the model vendor selling access to its own model. The flat fee sits below the estimated API cost of the assumed usage, which is what a subsidised consumer tier looks like. Bundled tools and image generation are not priced in here at all, so the real gap is wider than shown.
What the price buys besides tokens
- Proprietary model
- Scale & infra
- Distribution
In-house models plus the serving capacity to answer at consumer scale, and a client most people can use without instruction. The bundled extras — browsing, image generation, data analysis, voice — are additional inference this estimate does not attempt to price.
What you lose if you leave
The specific models and everything bundled around them. There is no cheaper route to the same product, only routes to different products.
The honest cheaper path
The API with your own client, which is cheaper for light use and more expensive at the volume assumed here. Open-weight models running locally are free of marginal cost and are not the same thing.
Recompute it for yourself
Recompute this for your own usage
Scaling assumes your usage has the same shape as ours, just more or less of it. If your mix is different — far more output than input, say — the estimate drifts. It is an estimate either way.
Where every number came from
- pricingChatGPT pricing
- rate-cardOpenAI API pricing
- rateRate card entry: frontier-large
Price recorded 13 Aug 2026 · entry last reviewed 13 Aug 2026. Think something here is wrong? File a correction — we publish them, including the ones that embarrass us.