Our verdict: yes, if you use ChatGPT most days. Plus at $20 a month swaps the free Luna model for GPT-6 Sol with thinking, removes ads and unlocks GPT-6 Astra in ChatGPT Work and Codex. If you chat a few times a week, stay free. Skip Go: it costs $8, runs the same model as Free and can show ads.
GPT-6 changed the math. The free plan now gets GPT-6 Luna and the new Intelligent UI, so it's better than it has ever been. At the same time, OpenAI put ads on the free and $8 plans and kept the real GPT-6 behind Plus. Here's what each plan buys you.
ChatGPT
Claude Pro
Google AI Pro
Perplexity Pro
Every ChatGPT plan in one picture
Free vs Go vs Plus vs Pro
US prices checked October 25, 2026, on OpenAI's pricing page and help center.
| Feature | Free | Go | Plus | Pro |
|---|---|---|---|---|
| Price | $0 | $8/mo | $20/mo | $100, $200 or $500/mo |
| Chat model | Luna | Luna | GPT-6 Sol | GPT-6 Sol |
| Thinking levels | ✗ | ✗ | Medium, High | All, plus Pro (Astra) |
| Astra in Work and Codex | ✗ | ✗ | ✓ | ✓ |
| Intelligent UI | ✓ | ✓ | ✓ | ✓ |
| Ads | Yes | May include ads | No ads | No ads |
| Context (reasoning) | Not listed | Not listed | 256K tokens | 400K tokens |
| Always-on agent (Dot) | ✗ | ✗ | ✗ | ✓ |
What $20 actually buys
The biggest upgrade is the model. Free and Go run Luna, which scores 38 on the Artificial Analysis Intelligence Index; Plus runs Sol, and GPT-6.1 Sol scores 52, one point behind OpenAI's flagship. That gap shows up on anything harder than a quick question: long documents, math, code and multi-step plans.
Plus also gets thinking (Medium and High), GPT-6 Astra inside agent-style tools like ChatGPT Work and Codex, projects, scheduled tasks and no ads. What it doesn't get is the Extra High and Pro thinking levels.
The ads on Free and Go
On October 21, OpenAI expanded ChatGPT ads to 26 more countries, 89 in total, with more than 100,000 advertisers. Ads appear only on Free and Go; Plus, Pro and Enterprise stay ad-free.
That makes Go a strange deal. You pay $8 for higher limits on the same Luna model and can still see ads. For $12 more, Plus gets a far stronger model and no ads.
When Pro is worth it
Pro starts at $100 and adds GPT-6 Pro, which runs on Astra, plus OpenAI's always-on agent Dot and unlimited image creation. Even Pro has weekly limits on GPT-6 Pro, and new $200 subscribers get a smaller allowance than people who joined before September 29.
Pay for Pro only if you hit Plus limits every week or need Astra's top setting for research or code. For a full breakdown, see ChatGPT Pro vs Claude Max.
Plus vs the other $20 plans
ChatGPT Plus- GPT-6 Sol with thinking
- Images, voice and Intelligent UI
- Astra in Work and Codex
The catch: no top thinking levels.
Claude Pro- Claude Opus 5.5, #1 on the index at 58
- Claude Code included
- Strongest long-form writer
The catch: no image generation.
Google AI Pro- Gemini 4 Argon, scores 53
- Built into Gmail, Docs and Drive
- AI Plus tier from $4.99
The catch: best inside Google's apps.
Perplexity Pro- Cited answers by default
- Pick from several top models
- Strong for fact-checking
The catch: weaker for writing and code.
Which plan should you get?
The verdict
ChatGPT Plus is worth $20 if you use it most days: you get a much stronger model, thinking and no ads. Stay free if you're a light user, skip Go, and choose Claude Pro instead if writing and coding are most of what you do. For every AI plan side by side, read Best AI subscription 2026.
FAQ
How much is ChatGPT Plus?
ChatGPT Plus costs $20 a month in the US. Go costs $8, Pro comes in $100, $200 and $500 tiers, and Business costs $25 a seat per month or $20 billed yearly.
Does ChatGPT Plus have ads?
No. OpenAI shows ads only on the Free and Go plans. Plus, Pro and Enterprise stay ad-free, and since October 21, 2026, ads run in 89 countries.
What does ChatGPT Plus get with GPT-6?
Plus swaps the free Luna model for GPT-6 Sol, adds the Medium and High thinking levels, and gives you GPT-6 Astra inside ChatGPT Work and Codex. It also adds projects, scheduled tasks and a 256K-token context for reasoning.
Is ChatGPT Go worth it?
Only if you want higher limits than Free and don't mind ads. Go costs $8 a month, runs the same Luna model as the free plan and may show ads, so most people should stay free or go straight to Plus.
Should I get ChatGPT Plus or Claude Pro?
Both cost $20 a month. Pick ChatGPT Plus for images, voice, Intelligent UI and the widest set of features. Pick Claude Pro for writing and coding, where Claude Opus 5.5 ranks higher on independent tests.