Mistral Pro (Le Chat) vs ChatGPT Plus: $14.99 or $20

Short answer. In the United States, Mistral lists its Pro plan at $14.99 a month before tax, and OpenAI lists ChatGPT Plus at $20 a month, without saying whether tax is included. Both pages were read on October 26, 2026. Set to Spain, Mistral’s page prints 18.14€ a month including taxes.

In plain words. Both are monthly plans for an AI assistant, and both include a coding tool. Mistral’s page calls its app Vibe and names Le Chat beside it. The two US prices are not on the same tax footing, so the gap between them is not exact.

People who know Mistral’s assistant as Le Chat will not find a plan called “Le Chat Pro” on Mistral’s pricing page. The page sells Pro and calls the app Vibe; it names Le Chat once, in the student offer, “if you haven’t used Vibe (or Le Chat) before”. This post sets that Pro plan against ChatGPT Plus, using only what each page printed on October 26, 2026. No currency is converted, and a tax is mentioned only where a page states it.

The price, view by view

Each row pairs the same view: same country, same currency, same billing.

The US prices were read by a script on October 26, 2026: Mistral’s on mistral.ai/pricing, OpenAI’s on its Codex pricing page, learn.chatgpt.com/docs/pricing, which lists the ChatGPT plans that include Codex. OpenAI’s own plans window refuses scripts. Mistral’s page says its figure excludes taxes; OpenAI’s page does not say either way, so the $5.01 difference between the two printed figures may not be the difference on a bill.

For Spain, Mistral’s page has a country list and a currency switch. Set to “Spain” and “EUR (€)” in a browser on October 26, it prints “18.14€ /mo Including taxes” for Pro. Our Spanish reading of ChatGPT Plus was made by hand, signed in, on October 17, 2026; OpenAI’s window needs a signed-in browser, so it was not repeated on October 26. Both Spanish figures say they include tax. Neither page prints a yearly price for these two plans.

What each plan includes

These are the pages’ own lines, not a feature comparison. Mistral’s Pro card opens with “Full access to Vibe for all-day coding and long-running tasks.” Below it the page shows two lists, under its Pro and Education tabs. Both include:

• “More access and usage.”
• “More messages and web searches.”
• “All-day coding in the CLI, IDE, or on web.”
• “Chat and email support.”

OpenAI’s page is about Codex, its coding agent, so what it lists for Plus is mostly coding:

• “Power a few focused coding sessions each week.”
• “Codex on the web, in the CLI, in the IDE extension, and on iOS”
• “Cloud-based integrations like automatic code review and Slack integration”
• “GPT-6.1 Sol and GPT-6 Luna”

and it adds “Other ChatGPT features as part of the Plus plan” without listing them. The Spanish window read on October 17 listed, among others, “Codex para automatizar la programación”, “Memoria ampliada y 20 GB de almacenamiento” and “Sin anuncios”. Both are on the ChatGPT and Mistral subscription pages, quoted in full.

Usage limits, in the pages’ words

Neither page prints a number of messages for these plans. Mistral’s Pro card says “Subject to fair usage limits and Mistral’s Terms of Service.” Its FAQ gives one comparison: “Pro has higher ceilings compared to Free (e.g. up to 40x more image generations). Team and Enterprise plans have even higher allowances on certain features. For example, Flash answers: 200 / day on Team vs. 150 / day on Pro.”

OpenAI’s page describes Plus as “Power a few focused coding sessions each week.” and says “Flexibly extend usage with ChatGPT credits”. It also says “API token prices are separate from subscription usage; don’t use them to estimate included tasks.”

The free plan and the next plan up

Mistral’s Free plan is $0, with “Limited messages and web searches.” and “Limited coding sessions.”; above Pro, its next plan is Team at “$24.99 /user/mo Excluding taxes”, for teams. ChatGPT’s Free plan prints “$0 /month” and “Explore Codex capabilities on quick coding tasks.”; between Free and Plus sits Go at “$8 /month”, and above Plus, Pro prints “From $100 /month”, with “Plans at $100, $200, or $500 USD per month”.

Mistral also sells Pro to students: “Verified students can get Mistral Pro for $5.99 / month (normally $14.99).”

Code and API

Both plans include a coding tool: Mistral’s Pro card says “Full access to Vibe for all-day coding and long-running tasks.”, and ChatGPT Plus includes Codex. Mistral’s page also prints two monthly API credit lines, “$25.5 /mo in API credits.” and “$15 /mo in API credits.”, one in each of the two lists under the Pro and Education tabs; its text does not say which belongs to which, so neither is attributed to Pro here. What Mistral’s own models cost per token on its API is on Mistral API pricing; coding plans are compared on AI coding tools.

Other comparisons: ChatGPT Plus vs Claude Pro and the cheapest paid AI plans in Spain.

How we checked

Mistral’s pricing page, mistral.ai/pricing, and OpenAI’s Codex pricing page, learn.chatgpt.com/docs/pricing, were read by a script on October 26, 2026, in US dollars, and every quote above was checked against those readings. Mistral’s page was also read in a browser the same day with its country set to Spain and its currency to euros. ChatGPT’s Spanish price comes from OpenAI’s plans window, read by hand from Spain, signed in, on October 17, 2026. No currency is converted and no tax rate is assumed. Prices change: the AI subscriptions page lists every plan with the day it was last checked.

Frequently asked questions

How much do Mistral Pro and ChatGPT Plus cost in the United States?

Mistral's pricing page prints "$14.99 /mo Excluding taxes" for Pro and OpenAI's Codex pricing page prints "$20 /month" for ChatGPT Plus, both read on October 26, 2026. OpenAI's page does not say whether tax is included.

Is Le Chat the same thing as Mistral Pro?

Mistral's pricing page sells the plan as Pro and calls the app Vibe, and it names Le Chat once, in its student offer: "if you haven't used Vibe (or Le Chat) before". It prints no plan called Le Chat Pro.

Is there a student price for Mistral Pro?

Yes: Mistral's pricing page says "Verified students can get Mistral Pro for $5.99 / month (normally $14.99)."