ChatGPT credits are OpenAI's pay-as-you-go balance for Plus and Pro subscribers who need to keep using Codex, ChatGPT Work, and the Word, Excel and PowerPoint add-ins after their plan's included limits run out. Your plan's usage is always spent first; credits only start draining after that, and they last 12 months from purchase. OpenAI's pricing pages never state a dollar figure, but its own published numbers put the price at $0.04 per credit.
That missing number is why so many people search for it. This guide works out the price from OpenAI's published figures, converts the rate cards into real money for common tasks, explains what credits are not for, and ends with a simple test for whether to top up or upgrade.
Key Takeaways
ChatGPT credits are a prepaid balance for OpenAI's agentic features, used only after your plan's own allowance is gone. OpenAI's help article on credits for personal plans says they "let you continue using eligible features after reaching your plan's included limits." It lists the eligible features as Codex, ChatGPT Work, Word, Excel and PowerPoint, "depending on your plan and account."
On Plus and Pro, those five features draw on one shared allowance. A credit bought in the Codex app can fund a PowerPoint task later. Nothing about the plan itself changes when you buy credits — the plan keeps its included usage, and credits sit on top of it.
What ChatGPT Credits Do Not Cover
ChatGPT credits on a personal plan are not a way to buy more Chat messages. OpenAI's list of supported features does not include Chat, and its Pro help page says credits "do not provide additional usage for every ChatGPT model or feature."
ChatGPT credits are also not OpenAI API credits. The help article says so in one line: "These credits are not API credits." A developer calling the API from their own code needs a separate prepaid balance on platform.openai.com. Nothing in a Plus or Pro subscription pays for it.
Business, Enterprise and Edu workspaces use credits differently. There, a shared workspace pool can meter Chat models too: OpenAI's Business rate card charges about 10 credits per GPT-6 Sol message and 50 per GPT-6 Pro message, while Instant stays unlimited. Everything else in this guide is about personal Plus and Pro accounts unless stated otherwise.
How Much Do ChatGPT Credits Cost?
ChatGPT credits cost $0.04 each, but you will not find that figure on a pricing page. OpenAI's Codex pricing page says only that "credit purchase prices and applicable discounts depend on your plan or agreement." The purchase screen in your account shows the bundles on offer to you, and those can vary by region and plan.
Where the 4-Cent Price Comes From
Three OpenAI figures and one university price list pin the credit at 4 cents:
A Worked Example and the Speed Multipliers
Model choice moves the bill by two orders of magnitude. Take one Codex turn that reads 100,000 tokens of code and writes 5,000 tokens back, with no caching:
Do ChatGPT Credits Reset or Expire?
ChatGPT credits do not reset. They expire. Your plan's included usage refills on its own schedule, including a five-hour window for Codex on Plus, and weekly limits may also apply. Purchased credits sit in your balance until you spend them or until they hit OpenAI's cut-off: "Credits are valid for 12 months from purchase. Unused credits expire and do not roll over after the expiry date."
Three other rules from the same help article are worth knowing before you buy:
You buy ChatGPT credits from the usage settings in ChatGPT or in the Codex app, and OpenAI also offers them at the moment you hit a limit.
Should You Buy ChatGPT Credits or Upgrade to Pro?
Buy ChatGPT credits when you hit limits occasionally. Upgrade when you hit them every week. Credits are a top-up. The jump from Plus at $20 to Pro 100 at $100 a month is $80. At $0.04 a credit, $80 buys about 2,000 credits: roughly 100 to 400 Excel messages, or 130 to 1,000 typical GPT-5.6 Sol tasks in Codex.
That math also explains why so many users look beyond official pricing when they want a ChatGPT Pro Accounts plan without paying the full $200-a-month list price. Marketplaces such as z2u.com list shared and individual **Cheap OpenAI Account** options, and the savings can be substantial for buyers who mainly need Codex and the Office add-ins rather than unlimited Chat. If you are weighing Pro 100 against Anthropic's $100 plan instead, ChatGPT Pro vs Claude Max compares the two.
Where to Find Affordable ChatGPT Pro Access
Official upgrades are the safest route, but they are not the only one. A growing number of users compare official pricing with third-party marketplaces before committing to a monthly plan. On z2u.com, for example, you can browse listings for a Buy Cheap OpenAI Account option and check what each tier actually includes — plan type, region, and whether credits are bundled — before you pay. The key is to treat any third-party purchase the way you would treat any online transaction: check seller ratings, confirm what is included, and understand that credits and plan limits still follow OpenAI's own rules.
For heavy Codex users, the calculation is straightforward. A ChatGPT Pro Accounts subscription at list price runs $200 a month, while topping up credits at 4 cents each only makes sense below roughly $80 a month of extra usage. A Cheap OpenAI Account sourced through a reputable marketplace can close that gap for budget-conscious buyers — but only if the listing is verified and the seller's terms are clear.
Conclusion
ChatGPT credits are worth buying when you need a few more Codex or Office tasks in a month, and only then. At 4 cents each they cost exactly what the API costs, they expire after a year, and they do not extend ordinary Chat. Set a monthly cap on automatic reload, pick the smallest model that does the job, and treat a habit of topping up past $80 a month as the signal to move to Pro.
If you are exploring cheaper ways to access OpenAI's higher tiers, compare official plans with marketplaces like z2u.com — including its Buy Cheap OpenAI Account and Cheap OpenAI Account listings — and always verify what a ChatGPT Pro Accounts plan actually includes before you buy.
That missing number is why so many people search for it. This guide works out the price from OpenAI's published figures, converts the rate cards into real money for common tasks, explains what credits are not for, and ends with a simple test for whether to top up or upgrade.
Key Takeaways
- What they cover: ChatGPT credits pay for Codex, ChatGPT Work, Word, Excel and PowerPoint after your plan limit. Ordinary Chat is not on that list, and they are not API credits.
- The price: OpenAI's pricing pages give no dollar rate, but its student offer calls 2,500 credits "equivalent to $100" — that is $0.04 per credit, the API list price in another unit.
- Real costs: a typical Excel message uses 5 to 20 credits (about $0.20 to $0.80); a PowerPoint message 10 to 50 (about $0.40 to $2.00).
- No reset: credits do not reset like plan limits. They expire 12 months after purchase, do not roll over, and are non-refundable and non-transferable.
- Buy or upgrade: if you would top up more than about $80 a month, compare Pro before buying another bundle.
ChatGPT credits are a prepaid balance for OpenAI's agentic features, used only after your plan's own allowance is gone. OpenAI's help article on credits for personal plans says they "let you continue using eligible features after reaching your plan's included limits." It lists the eligible features as Codex, ChatGPT Work, Word, Excel and PowerPoint, "depending on your plan and account."
On Plus and Pro, those five features draw on one shared allowance. A credit bought in the Codex app can fund a PowerPoint task later. Nothing about the plan itself changes when you buy credits — the plan keeps its included usage, and credits sit on top of it.
What ChatGPT Credits Do Not Cover
ChatGPT credits on a personal plan are not a way to buy more Chat messages. OpenAI's list of supported features does not include Chat, and its Pro help page says credits "do not provide additional usage for every ChatGPT model or feature."
ChatGPT credits are also not OpenAI API credits. The help article says so in one line: "These credits are not API credits." A developer calling the API from their own code needs a separate prepaid balance on platform.openai.com. Nothing in a Plus or Pro subscription pays for it.
Business, Enterprise and Edu workspaces use credits differently. There, a shared workspace pool can meter Chat models too: OpenAI's Business rate card charges about 10 credits per GPT-6 Sol message and 50 per GPT-6 Pro message, while Instant stays unlimited. Everything else in this guide is about personal Plus and Pro accounts unless stated otherwise.
How Much Do ChatGPT Credits Cost?
ChatGPT credits cost $0.04 each, but you will not find that figure on a pricing page. OpenAI's Codex pricing page says only that "credit purchase prices and applicable discounts depend on your plan or agreement." The purchase screen in your account shows the bundles on offer to you, and those can vary by region and plan.
Where the 4-Cent Price Comes From
Three OpenAI figures and one university price list pin the credit at 4 cents:
- The student offer: OpenAI gives verified university students in the US and Canada $100 in Codex credits. Its terms say that once applied, "you should see 2,500 credits, which is equivalent to $100." That is the only place OpenAI puts a dollar value on a credit in writing, and it comes to $0.04.
- Codex voice: OpenAI's Codex pricing page bills desktop voice at $0.05 per minute of a plan's usage budget, and at 1.25 credits per minute when a Plus or Pro user is spending credits. $0.05 ÷ 1.25 = $0.04.
- The API price list: Codex charges GPT-6 Astra at 250 credits per million input tokens and 1,250 per million output tokens. At $0.04 a credit, that is $10 and $50 — exactly the GPT-6 Astra prices on OpenAI's API pricing page. GPT-6.1 Sol and GPT-6 Luna match the same way.
- A university licence: the University of Maryland sells ChatGPT seats with monthly credit allocations. Each step up its ladder adds credits at the same rate: $70 more buys 1,750 more credits, $100 more buys 2,500, and $200 more buys 5,000. All three steps work out to 4 cents.
A Worked Example and the Speed Multipliers
Model choice moves the bill by two orders of magnitude. Take one Codex turn that reads 100,000 tokens of code and writes 5,000 tokens back, with no caching:
- On GPT-6 Luna: 0.25 credits for the input plus 0.06 for the output — about 0.31 credits, or roughly 1 cent.
- On GPT-6 Astra: 25 credits for the input plus 6.25 for the output — about 31 credits, or roughly $1.25.
Do ChatGPT Credits Reset or Expire?
ChatGPT credits do not reset. They expire. Your plan's included usage refills on its own schedule, including a five-hour window for Codex on Plus, and weekly limits may also apply. Purchased credits sit in your balance until you spend them or until they hit OpenAI's cut-off: "Credits are valid for 12 months from purchase. Unused credits expire and do not roll over after the expiry date."
Three other rules from the same help article are worth knowing before you buy:
- Refunds are rare. Credits are non-refundable unless the law, a contract or an approved exception says otherwise, such as a verified billing error or confirmed unauthorized use.
- You cannot pass them on. Credits are "non-transferable, have no cash value, and cannot be resold or gifted."
- The balance can go negative. If a task starts while you have credits and finishes after a parallel task drained them, the balance dips below zero, and your next purchase or reload pays that off first.
You buy ChatGPT credits from the usage settings in ChatGPT or in the Codex app, and OpenAI also offers them at the moment you hit a limit.
- At a limit: when Codex stops on a Plus or Pro plan, an option to add credits appears, so you can keep working without changing plan.
- In ChatGPT: open Settings → Usage to see your balance and buy credits.
- In the Codex app on Mac: open Usage & Billing for the same balance and the same purchase flow.
- Automatic reload: if your account offers it, set a minimum balance, a target balance and a maximum monthly spend. OpenAI then tops you up whenever the balance drops below the minimum. Turning it on while already below the minimum can trigger a purchase straight away.
Should You Buy ChatGPT Credits or Upgrade to Pro?
Buy ChatGPT credits when you hit limits occasionally. Upgrade when you hit them every week. Credits are a top-up. The jump from Plus at $20 to Pro 100 at $100 a month is $80. At $0.04 a credit, $80 buys about 2,000 credits: roughly 100 to 400 Excel messages, or 130 to 1,000 typical GPT-5.6 Sol tasks in Codex.
That math also explains why so many users look beyond official pricing when they want a ChatGPT Pro Accounts plan without paying the full $200-a-month list price. Marketplaces such as z2u.com list shared and individual **Cheap OpenAI Account** options, and the savings can be substantial for buyers who mainly need Codex and the Office add-ins rather than unlimited Chat. If you are weighing Pro 100 against Anthropic's $100 plan instead, ChatGPT Pro vs Claude Max compares the two.
Where to Find Affordable ChatGPT Pro Access
Official upgrades are the safest route, but they are not the only one. A growing number of users compare official pricing with third-party marketplaces before committing to a monthly plan. On z2u.com, for example, you can browse listings for a Buy Cheap OpenAI Account option and check what each tier actually includes — plan type, region, and whether credits are bundled — before you pay. The key is to treat any third-party purchase the way you would treat any online transaction: check seller ratings, confirm what is included, and understand that credits and plan limits still follow OpenAI's own rules.
For heavy Codex users, the calculation is straightforward. A ChatGPT Pro Accounts subscription at list price runs $200 a month, while topping up credits at 4 cents each only makes sense below roughly $80 a month of extra usage. A Cheap OpenAI Account sourced through a reputable marketplace can close that gap for budget-conscious buyers — but only if the listing is verified and the seller's terms are clear.
Conclusion
ChatGPT credits are worth buying when you need a few more Codex or Office tasks in a month, and only then. At 4 cents each they cost exactly what the API costs, they expire after a year, and they do not extend ordinary Chat. Set a monthly cap on automatic reload, pick the smallest model that does the job, and treat a habit of topping up past $80 a month as the signal to move to Pro.
If you are exploring cheaper ways to access OpenAI's higher tiers, compare official plans with marketplaces like z2u.com — including its Buy Cheap OpenAI Account and Cheap OpenAI Account listings — and always verify what a ChatGPT Pro Accounts plan actually includes before you buy.