Head-to-head · verified September 25, 2026
ChatGPT vs Grok: price comparison
ChatGPT is cheaper to start: ChatGPT Go costs $8/mo against $10/mo for SuperGrok Lite. At the standard tier it's ChatGPT Plus ($20/mo) against SuperGrok ($30/mo).
Plans tier by tier
| ChatGPT | Grok | |
|---|---|---|
| Free | ChatGPT Free Free | Grok Free Free |
| Entry (under $15) | ChatGPT Go $8/mo | SuperGrok Lite $10/mo |
| Standard (~$20) | ChatGPT Plus $20/mo | SuperGrok $30/mo X Premium+ $40/mo |
| Premium ($90+) | ChatGPT Pro ($100) $100/mo ChatGPT Pro ($200) $200/mo Closed to new sign-ups | SuperGrok Plus $100/mo SuperGrok Heavy $300/mo |
Key numbers
| ChatGPT | Grok | |
|---|---|---|
| Cheapest paid plan | ChatGPT Go $8/mo | SuperGrok Lite $10/mo |
| Most expensive plan | ChatGPT Pro ($100) $100/mo | SuperGrok Heavy $300/mo |
| Plans on sale | 5 | 6 |
| Annual discount | Not listed | Yes |
| Cheapest API model | GPT-6 Luna $0.10 / $0.50 | Grok 4.3 $1.25 / $2.50 |
| Priciest API model | GPT-5.5 pro $30 / $180 | Grok 4.7 $2 / $6 |
| Both standard plans | $50/mo together ($600/yr) | |
Pick ChatGPT if…
First-time AI buyers, everyday questions and voice-first users. Start free, move to Go when upload or image limits bite, and pay $20 when you want GPT-6 or Deep Research.
- Best-known voice mode and mobile apps
- Strong image generation built in
- GPT-6 models now available from the $20 Plus tier
The safe default. Go at $8 is the value pick, Plus at $20 is the full product, and Pro only makes sense if you hit Plus limits every day.
ChatGPT plans in detail →Pick Grok if…
Heavy X users and real-time news trackers.
- Real-time X data no other assistant has
- SuperGrok Lite at $10 is a cheap way in
- Annual billing saves about 17%
A capable model behind a steep paywall. Lite at $10 is the sensible test; buy the bigger tiers deliberately.
Grok plans in detail →Recent changes
- Grok Grok 4.7 launched
API at $2 / $6 per million tokens, 500K context.
- ChatGPT GPT-6 family launched
GPT-6 Astra ($10 / $50), Sol ($2 / $10) and Luna ($0.10 / $0.50) on the API; GPT-6 models added to ChatGPT Plus and Pro. GPT-6 Pro: 50 messages/week on Pro $100, 200 on Pro $200.
- ChatGPT ChatGPT Pro $200 closed to new sign-ups
Existing subscribers keep renewing; the $100 Pro tier remains open.
- ChatGPT GPT-5.6 Sol API promotion
$5 / $30 → $4 / $20 until Nov 21, 2026.
- ChatGPT GPT-5.6 Terra and Luna price cuts
Terra $2.50 / $15 → $2 / $12. Luna $1 / $6 → $0.20 / $1.20.
ChatGPT vs Grok: questions
Is ChatGPT cheaper than Grok?
To start, yes for ChatGPT: its cheapest paid plan is ChatGPT Go at $8/mo, versus SuperGrok Lite at $10/mo.
Do ChatGPT and Grok both have a free plan?
Yes. ChatGPT Free: unlimited everyday text chat (abuse safeguards apply), capped uploads, image generation and voice. Grok Free: very limited prompts, real-time x search.
Should I choose ChatGPT or Grok?
Choose ChatGPT if you are: first-time AI buyers, everyday questions and voice-first users. Start free, move to Go when upload or image limits bite, and pay $20 when you want GPT-6 or Deep Research. Choose Grok if you are: heavy X users and real-time news trackers.
Sources
Checked against the official pages below on September 25, 2026. Prices are USD before local tax. See how we verify prices and the change log.