ChatGPT Free
Free
What’s included
- Explore Codex capabilities on quick coding tasks
- No Codex Cloud
OpenAI · Plans
Codex pricing
Codex is included in ChatGPT's free plan; paid plans start at $8 a month (Go), up to $500 a month (Pro 500). Business seats start at $25 a seat a month, or $20 billed annually. You can also pay per token at API rates instead of subscribing.
Codex comes with ChatGPT plans and shares its usage with ChatGPT Work, or you can use it with an API key and pay per token.
ChatGPT Go costs $8 a month billed monthly. Its US price buys about 2.0 million tokens of GPT-6.1 Sol on the API at list rates, with 3 input tokens for every output token and no caching. API prices checked 13 Nov 2026. Subscription or API, plan by plan →
Checked 11 Nov 2026 against OpenAI’s pricing page ↗
Plans at a glance
| Tier | Monthly | Annual | Who it’s for |
|---|---|---|---|
| ChatGPT Free | Free | Free | Trying Codex at no cost |
| ChatGPT GoThis plan may include ads | $8 a month | Monthly only | Individuals who want more than the free plan |
| ChatGPT Plus | $20 a month | Monthly only | Individuals who need more usage than Go |
| ChatGPT Pro 100The UK pricing page shows “From £89” | $100 a month | Monthly only | Individuals who need more usage than Plus |
| ChatGPT Pro 200 | $200 a month | Monthly only | Individuals who need more usage than Pro 100 |
| ChatGPT Pro 500 | $500 a month | Monthly only | The heaviest individual users |
| ChatGPT Business Standard seatPer user. Minimum 2 seats in total | $25 a seat a month | $20 a seat a month$240 a seat a year | Teams of 2 or more |
| ChatGPT Business Premium seatPer user. Mix and match with Standard seats | $125 a seat a month | $100 a seat a month$1,200 a seat a year | Team members who need more usage than a Business Standard seat |
| ChatGPT Enterprise & Edu | Contact sales | Organisations that buy through sales | |
| API key | Pay per token at API rates | Developers who would rather pay per token | |
Prices as OpenAI lists them, in US dollars. Choose GBP in the currency menu to see OpenAI’s UK prices where we’ve checked them. Subscription prices aren’t converted.
UK prices as OpenAI shows them. Subscription prices aren’t converted.
The vendor sets local prices. Where we haven’t seen OpenAI’s price in your currency, it stays in US dollars.
Billing notes
- Codex Cloud is not included with Free or Go.
- Credit prices in USD aren't stated on the pages we checked.
Usage limits and what’s included
Each tier’s limits in OpenAI’s own words. Where OpenAI publishes no number, we don’t add one.
ChatGPT Go
$8 a month
What’s included
- Use Codex for lightweight coding tasks.
- Codex in the desktop app at Standard speed, subject to rollout
- No Codex Cloud
ChatGPT Plus
$20 a month
Usage limits
- “Plus and Business Standard seats include limited Astra usage, with optional credits for additional usage afterward.”
- “Local messages and cloud chats share your plan's usage allowance. Weekly limits may also apply.”
What’s included
- Power a few focused coding sessions each week
- Codex on the web, in the CLI, in the IDE extension, and on iOS
- Automatic code review and Slack integration
- Flexibly extend usage with ChatGPT credits
ChatGPT Pro 100
$100 a month
Usage limits
- “Pro plans currently have no five-hour limit.”
- “Your plan still has an included usage allowance.”
- “Pro $100 and Pro $200 plans and Business Premium seats can use their full existing allowance for Astra.”
What’s included
- Everything in Plus
- Composer predictions (beta)
ChatGPT Pro 200
$200 a month
Usage limits
- “Pro plans currently have no five-hour limit.”
- “Your plan still has an included usage allowance.”
- “Pro $100 and Pro $200 plans and Business Premium seats can use their full existing allowance for Astra.”
What’s included
- Everything in Plus
- Composer predictions (beta)
ChatGPT Pro 500
$500 a month
Usage limits
- “Pro plans currently have no five-hour limit.”
- “Your plan still has an included usage allowance.”
What’s included
- Everything in Plus
- Ultrafast mode access
- Composer predictions (beta)
ChatGPT Business Standard seat
$25 a seat a month, or $20 a seat a month billed annually
Seats At least 2 seats
Usage limits
- “Plus and Business Standard seats include limited Astra usage, with optional credits for additional usage afterward.”
- “Local messages and cloud chats share your plan's usage allowance. Weekly limits may also apply.”
What’s included
- Larger virtual machines to run cloud chats faster
- SAML SSO, MFA
- No training on your business data by default
- Codex access tokens for trusted automation
ChatGPT Business Premium seat
$125 a seat a month, or $100 a seat a month billed annually
Seats At least 2 seats
Usage limits
- “Premium seats have higher included usage for Work and Codex and no five-hour usage limit.”
What’s included
- Everything in Business Standard
ChatGPT Enterprise & Edu
Contact sales
Seats Agreed with sales
Usage limits
- “Enterprise/Edu users with flexible pricing have no fixed rate limits. Usage scales with credits.”
- “Enterprise and Edu plans without flexible pricing have the same per-seat usage limits as Plus for most features.”
What’s included
- Priority request processing
- SCIM, EKM, RBAC
- Compliance API audit logs
- Data residency
- Codex Security
- Analytics dashboard and API
API key
Pay per token at API rates
What’s included
- Codex in the CLI, SDK, or IDE extension
- No cloud-based features (GitHub code review, Slack, etc.)
- Model availability follows the API models available to your key
How limits work
- OpenAI: “ChatGPT Work and Codex share usage.”
- OpenAI: “Pro plans currently have no five-hour limit.”
- OpenAI: “Cloud tasks may use more of your allowance than local messages.”
- OpenAI: “Local messages and cloud chats share your plan's usage allowance. Weekly limits may also apply.”
Local messages per five hours
| Model | Plus | Business Standard seat |
|---|---|---|
| GPT-6 Astra | 5-45 | 5-45 |
| GPT-6.1 Terra | 35-285 | 35-285 |
| GPT-6 Sol | 15-150 | 15-150 |
| GPT-6 Luna | 350-3,000 | 350-3,000 |
OpenAI: “These estimates are not fixed message limits” source [1]
OpenAI's pages disagree on the GPT-6.1 Sol range, so it is not shown. GPT-5.6 ranges for Standard seats are listed separately by OpenAI and aren't repeated here.
Speed modes use your allowance faster
| Speed mode | Included subscription usage | Purchased credits / Enterprise pay as you go |
|---|---|---|
| Fast | 2.5x | 2x |
| GPT-6 Astra Ultrafast | 8x | 6x |
| GPT-6.1 Sol Ultrafast | 8x | 6x |
Multiples of normal speed’s usage, from OpenAI’s pricing page source [1]
Codex vs Claude Code
Tiers paired by their US price. Where one side has nothing at that price, its cell says No equivalent.
| Price point | Codex | Claude Code |
|---|---|---|
| Free | ChatGPT FreeFree | No equivalent |
| $8 a month | ChatGPT Go$8 a month | No equivalent |
| $20 a month | ChatGPT Plus$20 a month | Claude Pro$20 a month |
| $100 a month | ChatGPT Pro 100$100 a month | Claude Max$100 a month |
| $200 a month | ChatGPT Pro 200$200 a month | Claude Ultra$200 a month |
| $500 a month | ChatGPT Pro 500$500 a month | No equivalent |
| $25 a seat a month | ChatGPT Business Standard seat$25 a seat a month | Claude Team Standard seat$25 a seat a month |
| $125 a seat a month | ChatGPT Business Premium seat$125 a seat a month | Claude Team Premium seat$125 a seat a month |
| Enterprise | ChatGPT Enterprise & EduContact sales | Claude Enterprise$20 a seat a month, billed annually, plus usage at API rates |
| Pay per token at API rates | API keyPay per token at API rates | Claude Console (API pay-as-you-go)Pay per token at API rates |
API key
On the API key route there’s no plan: Codex is billed per token at OpenAI’s API rates.
| Model | Input | Output |
|---|---|---|
| GPT-6.1 SolPrompts over 272K tokens: $4.00 / $15.00 | $2.00 | $10.00 |
| GPT-6 LunaPrompts over 272K tokens: $0.20 / $0.75 | $0.10 | $0.50 |
| GPT-6 AstraPrompts over 272K tokens: $20.00 / $75.00 | $10.00 | $50.00 |
Per 1M tokens · US dollars, converted by the currency select · Rates shown are for prompts up to the size given; longer prompts cost more
Codex plans FAQ
How much does Codex cost?
Codex is included in ChatGPT's free plan; paid plans start at $8 a month (Go), up to $500 a month (Pro 500). Business seats start at $25 a seat a month, or $20 billed annually. You can also pay per token at API rates instead of subscribing.
Is Codex free?
Yes, with limits: ChatGPT Free includes it (“Limited Codex access”). Paid plans start at $8 a month (ChatGPT Go).
How much does Codex cost on the API?
On the pay-per-token route (API key), Codex is billed at API rates, per million input / output tokens: GPT-6.1 Sol $2.00 / $10.00 for prompts up to 272K tokens ($4.00 / $15.00 over), GPT-6 Luna $0.10 / $0.50 for prompts up to 272K tokens ($0.20 / $0.75 over) and GPT-6 Astra $10.00 / $50.00 for prompts up to 272K tokens ($20.00 / $75.00 over).
How do Codex usage limits work?
In OpenAI's words: “ChatGPT Work and Codex share usage.” “Pro plans currently have no five-hour limit.” “Cloud tasks may use more of your allowance than local messages.” “Local messages and cloud chats share your plan's usage allowance. Weekly limits may also apply.”
How much faster do Codex speed modes use your allowance?
OpenAI's pricing page gives each mode's multiple of included subscription usage, with purchased credits or Enterprise pay as you go in brackets: Fast 2.5x (2x), GPT-6 Astra Ultrafast 8x (6x) and GPT-6.1 Sol Ultrafast 8x (6x).
How many Codex messages do you get on ChatGPT Plus?
OpenAI estimates local messages per five-hour window on ChatGPT Plus: 5-45 with GPT-6 Astra, 35-285 with GPT-6.1 Terra, 15-150 with GPT-6 Sol and 350-3,000 with GPT-6 Luna. OpenAI adds: “These estimates are not fixed message limits”.
Sources
OpenAI’s pages, checked 11 Nov 2026; API rates from our daily price check.
- developers.openai.com/codex/pricing ↗
- help.openai.com/en/articles/11369540-using-codex-with-your-chatgpt-plan ↗
- chatgpt.com/pricing ↗
- help.openai.com/en/articles/20001275-chatgpt-work-and-codex ↗
- help.openai.com/en/articles/20001516-managing-usage-with-gpt-6-astra-in-work-and-codex ↗
- help.openai.com/en/articles/8792828-chatgpt-business-overview ↗
- help.openai.com/en/articles/12003714-chatgpt-business-models-and-limits ↗
- openai.com/index/premium-seats-chatgpt-business ↗
- help.openai.com/en/articles/8265053-what-is-chatgpt-enterprise ↗
- developers.openai.com/api/docs/pricing ↗