A decision for a beginner, not a spec sheet. Scores are our weights. Prices are the public plans, and anything marked verify on the tool page should be re-checked before you pay.
Pick OpenAI Codex if you already pay for ChatGPT and want the coding agent in that allowance.
Pick v0 if you are landing pages and React UI.
A coding agent included with ChatGPT, not a separate app subscription.
Cheapest verified paid plan: Plus · $20/mo
A browser UI builder for React interfaces and landing pages.
Cheapest verified paid plan: Plus · $30/user/mo
Web app or SaaS
Mobile app
Game
Website or landing page
Automation or script
No code
I can follow a change
I already develop
Last verified 2026-10-19
Individual
Free
VerifiedLimited trial access to Codex and limited access to GPT-5.6. Codex pricing docs also list GPT-6 Luna at Standard speed in the desktop app, subject to rollout. No published prompt count.
Confirmed on the Codex pricing page as a limited trial. GPT-6 Luna on Free is listed as subject to rollout, so it is not treated as a guarantee.
Individual
Confirm on chatgpt.com/pricing
VerifyLimited Codex, above Free. Codex pricing docs at learn.chatgpt.com/docs/pricing list Go at $8/mo. chatgpt.com/pricing still did not print a dollar amount on 2026-10-19.
Left out of budget matching. The $8 figure is on a Codex pricing doc, and the live ChatGPT pricing page still does not show it.
Individual
$20/mo
VerifiedExpanded Codex for a few focused sessions a week. Codex app on macOS and Windows. Local and cloud usage share the allowance. Weekly limits may apply. GPT-6 Astra access is limited, with credits for more.
Plus is $20/mo on OpenAI's help center. Annual billing is not offered.
Individual
$100/mo
VerifiedHigher Codex allowance for longer daily sessions. GPT-6 Astra is included in the allowance. Ultrafast is not included.
From OpenAI's Pro tiers help article.
Individual
$200/mo
VerifiedMore included usage than Pro 100. Ultrafast is not included. New subscriptions may have a lower allowance than older Pro 200 accounts.
OpenAI says the monthly price remains $200.
Individual
$500/mo
VerifiedHighest included Pro usage. Ultrafast for GPT-6 Astra and GPT-6.1 Sol is included and draws the included allowance at 8× the Standard rate for that model.
Ultrafast is only on this Pro tier. The 8× rate is from OpenAI's Pro tiers help article.
Last verified 2026-10-19
Individual
Free
Verified7 messages a day. Credit grant is the current offer: $5 once for new accounts on the one-time offer, or $5 a month for existing free users. Confirm which offer your account has.
The message cap is documented. The credit offer is account-specific, which is called out in the limits rather than guessed.
Individual
$20/mo
Verified$20 of credits a month. v0's docs say Premium is being sunset and is no longer available to new users.
Shown so you do not plan on it. Excluded from budget matching for that reason.
Individual
$30/user/mo
Verified$30 of included monthly credits per user and $2 of daily credits on login. Extra credits can be purchased. Team sharing and centralized billing.
This is the paid plan the pricing page offers new users. On 2026-10-19 that page showed $30/user/month with $90 struck through beside it. The docs also list Plus at $30/user/month.
Plan allowance, with weekly limits that may also apply. Local messages and cloud chats share it. OpenAI does not publish one universal reset clock.
Switch to a lower-cost model. OpenAI says that stretches the same allowance.
Free is capped at 7 messages a day. Paid plans are credit-based. Unused monthly credits roll one cycle and expire after 65 days. Purchased credits expire after one year and need an active paid plan to spend.
On Free, wait until the next day. Seven messages go quickly if you regenerate the whole page.
OpenAI Codex's cheapest paid plan the ranking counts is Plus at $20/mo. v0's cheapest paid plan the ranking counts is Plus at $30/user/mo.
OpenAI Codex is for developers who already pay for ChatGPT and want the coding agent in that allowance, web apps and automations with local and cloud tasks, and a few focused coding sessions a week on Plus.
v0 is for landing pages and React UI, a frontend you will deploy on Vercel, and people who want to see a design before they think about a backend.
OpenAI Codex scores 1 out of 5 for someone who does not want to read code. v0 scores 4 out of 5. v0 has the higher no-code score. You are still in a coding agent. This is a poor pick if you never want to see a file. You can prompt a page into existence. You will still see React if you open the code.
OpenAI Codex: Free includes a limited Codex trial. OpenAI does not publish a fixed prompt count. It is enough to see the product, not to build through the month. v0: 7 messages a day, plus a credit offer that depends on the account. New signups under the one-time offer get $5 once. Existing free users may still have $5 a month. Check billing settings.