Introduction
OpenAI Codex pricing now stretches from a $0 Free plan to a $200-per-month Pro 20x plan. Between them sit Go at $8, Plus at $20, and Pro 5x at $100. The list prices are easy to compare. The harder question is what you are actually buying, because 5x and 20x describe Codex usage relative to Plus—not five or twenty times better code, and not unlimited access.
This guide explains the current plans, shared usage windows, extra credits, Fast mode, API billing, and the cost of a real coding task. It also separates Codex from Yukie. Codex is designed for working with code through surfaces including the web, terminal CLI, and IDE. Yukie is a dedicated web-based agent workspace within GlobalGPT. They overlap as agents, but Yukie is not a Codex CLI add-on and should not be presented as one.
OpenAI Codex Pricing at a Glance
The prices and plan descriptions above were verified against OpenAI’s official Codex pricing documentation on July 27, 2026. Because product pricing and limits can change, recheck that page before subscribing. If you are comparing more than price, our guide to the best AI models for coding explains why model quality, tool access, and workflow fit matter as much as the monthly fee.
What Do You Get With Each Codex Plan?
The paid tiers are not simply the same plan at higher prices. Free is for evaluation, Go covers lightweight use, and Plus is the first tier with an explicitly documented cross-device Codex experience. Here is where each one fits.
Codex Free — Best for Trying It
Codex Free costs $0 per month and is the simplest way to test whether an AI coding agent fits your work.
- Best for: explaining a small function, reviewing a short patch, or proposing a unit test.
- Expect lower capacity: treat Free as an evaluation tier, not guaranteed daily development capacity.
- Access boundary: OpenAI does not make the same explicit web, CLI, IDE, and iOS promise shown for Plus.
- Compare first: see our ChatGPT Go vs Free comparison if general ChatGPT use also matters.
Codex Go — The $8 Lightweight Option
Codex Go costs $8 per month and fills the gap between occasional Free use and the $20 Plus plan.
- Best for: learners, side projects, and lightweight coding tasks.
- Main advantage: more room than Free without paying for Plus.
- Main limit: the low price does not guarantee enough capacity for large repositories or long autonomous sessions.
- Before subscribing: read our broader ChatGPT Go review.
Codex Plus — The $20 Starting Point
Codex Plus costs $20 per month and is the first tier with an explicitly documented cross-device Codex experience.
- Included surfaces: web, CLI, IDE extension, and iOS.
- Best for: individual developers running a few focused coding sessions each week.
- Not fixed Tokens: model choice, context, reasoning, tools, retrieval, and caching affect consumption.
- Upgrade only for capacity: compare repeated interruption costs before moving to Pro. See our guide to ChatGPT Plus limits.
Codex Pro Pricing: 5x vs 20x
The Pro decision is mainly about how much uninterrupted capacity you need. Both tiers include the Plus experience, but their usage multiples and monthly prices are very different.
Pro 5x Costs $100 per Month
Codex Pro 5x costs $100 per month and provides five times the Codex usage available on Plus.
- 5x means usage: it does not make the model five times more accurate, faster, or capable.
- Best fit: Plus limits interrupt paid work often enough to justify the $80 monthly upgrade.
- Budget advantage: a fixed subscription can be easier to plan than open-ended API billing.
- Poor fit: occasional users may pay five times the Plus price for unused capacity.
Pro 20x Costs $200 per Month
Codex Pro 20x costs $200 per month and provides twenty times the Codex usage available on Plus.
- Best for: sustained implementation work, repeated repository analysis, and regular parallel tasks.
- Business case: waiting for a reset would interrupt a normal paid workday.
- Still not unlimited: local messages and cloud chats share a five-hour window, and weekly limits may apply.
- Watch heavy modes: resource-intensive features can consume the allowance faster.
Is Pro 20x Worth Twice the Price?
Pro 20x doubles the Pro 5x bill but raises the stated Plus-relative usage from 5x to 20x. The value depends on whether you regularly use that extra capacity.
If your real question is which model to use inside a coding workflow, see our comparison of the best ChatGPT models for coding. A higher subscription allowance and a better model choice solve different problems.
Codex Limits and Hidden Costs
Codex plans are limited by more than a monthly price. Shared usage windows, possible weekly caps, task complexity, Fast mode, image generation, retries, and separate API billing can all determine how quickly your allowance disappears—and what continued work costs after that.
Shared Windows and Weekly Limits
A Codex subscription prepays for a limited allowance, not unlimited use. OpenAI states that local messages and cloud chats share a five-hour usage window and that additional weekly limits may apply. Heavy local work can therefore reduce the capacity available for cloud tasks within the same window.
- No line-item charge does not mean no cost: each task consumes prepaid capacity.
- Reset waits cost time: interruptions matter when Codex is part of paid work.
- Continued use may cost more: extra Credits or a higher plan can become necessary.
These figures are personal cost allocations, not OpenAI’s per-task prices. They also assume every counted task produced an accepted result. A failed run that needs extensive human correction increases the true cost even if it used fewer tokens.
Complex Tasks Consume Limits Faster
Codex does not consume the same allowance for every request. Renaming one variable may need little context; tracing a production bug can require repository search, file reads, reasoning, tool calls, test output, and retries. Prompt length alone is therefore a poor guide to limit consumption.
- Model choice: different models have different subscription consumption and API rates.
- Context size: more files and longer conversations require more input processing.
- Reasoning: harder tasks may consume more compute or credits.
- Tool use and retrieval: searches, commands, test output, and external retrieval add context.
- Caching: reusable context can be priced or counted differently from fresh input.
- Retries: a cheap failed attempt can cost more overall than a slightly heavier first-run success.
Fast Mode and Images Use More Allowance
Fast mode and image generation exchange more allowance for speed or richer output.
- Image generation: uses included limits three to five times faster on average than a comparable non-image turn, depending on quality and size.
- Fast mode: is about 1.5x faster on supported models.
- Credit multiplier: GPT-5.6 and GPT-5.5 use Credits at 2.5x the Standard rate; GPT-5.4 uses 2x.
- API route: image use with an API key follows separate API pricing.
Extra Credits and API Billing Are Separate
Included usage, ChatGPT Credits, and API billing are three separate cost buckets.
- Lowest-cost option: wait for the included limit to reset.
- Continue with Credits: Plus and Pro users may use available ChatGPT Credits, which are additional to the included allowance.
- Check before large tasks: use
/statusin the CLI or the Codex usage dashboard. - API billing is separate: API-key use is charged by model Tokens and does not include Codex cloud features such as GitHub review or Slack integrations.
How Much Does a Real Codex Task Cost?
Testing status: We completed one controlled Codex CLI run on July 28, 2026. Codex passed all seven public and hidden acceptance checks on its first implementation. The result below measures Codex only; the current GlobalGPT CLI does not expose Yukie as a testable model or Agent command.
The frozen repository, exact prompt, time limit, Token output, hidden checks, and first-run result make this a reproducible Codex cost case study rather than an estimated task price.
The Test Task
How Many Tokens Did Codex Use?
What Did the Codex Task Really Cost?
Did Codex Complete the Task?
A Cheaper Codex Alternative: When Yukie Makes More Sense
Codex is built for coding and developer tools. Yukie is a web-first alternative for people who want finished research, content, media, document, or presentation outputs without managing a local coding environment.
What Is Yukie?
Yukie is an independent web-based Agent inside GlobalGPT. It can help produce images, videos, documents, research, tables, websites, and slides from one browser workspace. It is not a Codex CLI plugin and does not need Codex to run.
GlobalGPT is a multi-model AI platform that brings chat, image, video, and Agent tools into one subscription. Its public annual-plan prices currently show monthly equivalents of $5.80 for Basic, $10.80 for Pro, and $25 for Unlimited. These are GlobalGPT platform prices; Yukie’s exact plan eligibility and task limits are not publicly stated.
- Independent Agent: Yukie works directly in the browser rather than inside the Codex CLI.
- Lower platform price: GlobalGPT’s annual-plan monthly equivalents start well below Codex Pro, although Yukie-specific limits still need confirmation.
- Less setup: non-developers can work without configuring a repository, terminal, or IDE. See our AI assistant comparison for more browser-first options.
- Not a full Codex replacement: choose Codex for direct repository editing, terminal commands, automated tests, IDE integration, GitHub review, and other developer workflows. Our all-in-one AI platform comparison covers more outcome-focused alternatives.
Codex vs Yukie: What Is the Difference?
Choose Codex for direct codebase control; choose Yukie when a browser Agent can deliver the finished outcome. The better value depends on acceptable quality and total cost, not which product is universally “better.”
Final Verdict — Do You Really Need Codex Pro?
- Start with Plus: it is the logical first paid tier for the complete web, CLI, IDE, and iOS experience.
- Choose Pro 5x: when Plus limits repeatedly interrupt frequent work.
- Choose Pro 20x: only when heavy daily use makes reset waits a measurable business cost.
- Use API billing: for programmatic or variable usage, but track it separately from the subscription.
- Consider Yukie: when research, media, documents, websites, slides, or other browser-first outputs matter more than repository control.
- Compare accepted results: include correction time and do not present GlobalGPT’s lower plan prices as a measured Yukie coding-task cost.
Frequently Asked Questions
These answers cover the pricing, limits, billing routes, and Yukie distinction that matter most before choosing a plan.
Is OpenAI Codex free?
Yes. OpenAI currently lists Codex Free at $0 per month for exploring quick coding tasks. Its capacity is lower than paid plans, and the current price card does not promise the same complete surface coverage as Plus.
How much does Codex Plus cost?
Codex Plus costs $20 per month. OpenAI says it includes Codex on the web, in the CLI, in the IDE extension, and on iOS.
How much does Codex Go cost?
Codex Go costs $8 per month and is positioned for lightweight coding tasks. It sits between the $0 Free plan and $20 Plus plan.
What is Codex Pro 5x?
Codex Pro 5x is a $100-per-month plan that provides five times the Codex usage available on Plus. The 5x label refers to usage capacity, not five times better model quality.
What is Codex Pro 20x?
Codex Pro 20x costs $200 per month and provides twenty times the Codex usage available on Plus. It is designed for heavy individual use but is not unlimited.
Is Pro 20x twice as good as Pro 5x?
No. Pro 20x doubles the monthly price and offers a larger usage allowance, but it does not make the model twice as capable. Quality still depends on the model, task, context, and instructions.
Is Codex Pro unlimited?
No. Local messages and cloud chats share a five-hour usage window, and additional weekly limits may apply. Resource-intensive tasks can consume the allowance faster.
Does a Codex subscription include API usage?
No. API-key access is billed separately by token at the selected model’s API rates. It works in the CLI, SDK, and IDE extension but does not include Codex cloud features.
How can I check my Codex usage?
Run /status in an active Codex CLI session to see remaining limits, or open the Codex usage dashboard outside the session.
What happens when I reach a Codex limit?
You can wait for the allowance to reset. Plus and Pro users may also continue with available ChatGPT credits, which are separate from included usage.
Does Codex Fast mode cost more?
It consumes credits faster. OpenAI says Fast mode is about 1.5x faster on supported models; GPT-5.6 and GPT-5.5 use credits at 2.5x the Standard rate, while GPT-5.4 uses credits at 2x.
Is Yukie cheaper than Codex?
GlobalGPT’s current annual-plan monthly equivalents are lower than paid Codex prices, but the public pricing page does not specify which plan includes Yukie or its exact limits. Yukie can be a lower-cost option for suitable browser-agent tasks, but a direct per-task savings claim requires verified access and benchmark data.
Does Yukie run inside the Codex CLI?
No. Yukie is an independent web-based agent workspace within GlobalGPT. It is an alternative for some outcomes, not a Codex CLI plugin or an agent that must be connected to Codex.
