Head-to-head · OpenAI vs xAI
ChatGPT vs Grok 4.7
Quick answer: ChatGPT stands out for strong general reasoning across domains, and it has a free tier. Grok 4.7 stands out for large context window at a moderate price. Reviewed September 2026.
Overview
ChatGPT: OpenAI's flagship conversational AI. Used by professionals across every category for drafting, summarization, structured thinking, and as a Swiss-army-knife reasoning assistant.
Grok 4.7: Grok 4.7 is xAI's latest flagship model for coding, agentic tasks and knowledge work. It has a 500,000-token context window, accepts text and image input, and supports adjustable reasoning levels.
At a glance
| Dimension | ChatGPT | Grok 4.7 |
|---|---|---|
| Vendor | OpenAI | xAI |
| Starting price | $20/mo | API: $2 to $4 in / $6 to $12 out per M tokens |
| Pricing model | Freemium | Paid |
| Free tier | Yes | No |
| Category | Generative AI | Generative AI |
Strengths and limits
ChatGPT
- Strong general reasoning across domains
- Largest ecosystem of integrations and Custom GPTs
- Frequent model updates
Watch out for
- Hallucinates on niche or recent topics
- Token / message caps frustrate heavy users on Plus
- Model behavior changes between versions can break workflows
Grok 4.7
- Large context window at a moderate price
- Strong on coding and agent tasks
- Real-time knowledge through the xAI ecosystem
Watch out for
- Smaller enterprise ecosystem than OpenAI, Anthropic or Google
- Price steps up for prompts over 200,000 tokens
- Fewer professional integrations
Key features
ChatGPT
- GPT-4-class reasoning on Plus and above
- File upload, web browse, image gen
- Custom GPTs and Projects with shared instructions
- Voice mode (mobile and desktop)
- API access for developers
Grok 4.7
- 500,000-token context window
- Text and image input
- Flexible reasoning levels
- Available through the xAI API
Pricing compared
ChatGPT has a free tier and paid plans starting at $20/mo. The free tier is enough to test it on real work before you pay.
Grok 4.7 is priced by usage rather than by seat: API: $2 to $4 in / $6 to $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing.
Frequently asked questions
Which is better, ChatGPT or Grok 4.7?
It depends on the work. ChatGPT stands out for strong general reasoning across domains, and it has a free tier. Grok 4.7 stands out for large context window at a moderate price.
How do ChatGPT and Grok 4.7 compare on price?
ChatGPT has a free tier and paid plans starting at $20/mo. The free tier is enough to test it on real work before you pay. Grok 4.7 is priced by usage rather than by seat: API: $2 to $4 in / $6 to $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing.
Is there a free option between ChatGPT and Grok 4.7?
ChatGPT offers a free tier or free access, so you can test on real work before paying.