GPT vs Grok at a glance
| GPT | Grok | |
|---|---|---|
| Developer | OpenAI | xAI |
| Latest version | GPT-5.6 | Grok 4.5 |
| Known for | All-rounder | Real-time |
| Context window | 128K tokens on Plus; 16K on the free tier | Up to 2 million tokens (flagship tier) |
| Multimodal support | Text, images, and files | Text, images, and video |
| Open source | No | No |
| Official pricing | Free tier available; Plus is $20/mo, Pro is $200/mo | Free tier on X and grok.com; SuperGrok is $30/mo |
GPT benchmark highlight
Leads SWE-bench Verified among frontier models, scoring above 96%
Grok benchmark highlight
Posts 83.3% on Terminal-Bench 2.1 and leads outright on SWE Marathon
Which one should you use?
Choose GPT if you want:
- General-purpose assistant
- Coding & debugging
- Data analysis
- Everyday productivity
Choose Grok if you want:
- Current events & trending topics
- Fast-moving research
- Math & reasoning problems
- A more direct, less filtered tone
Standout strengths
GPT
Solid context window
ChatGPT Plus offers a 128K-token context window, enough to work with lengthy documents or codebases in one conversation.
Sharp coding ability
ChatGPT consistently leads coding benchmarks, from quick scripts to full agentic development workflows.
Low hallucination rate
Newer versions of ChatGPT state incorrect information far less often than earlier GPT generations.
Grok
Real-time information
Reads live public posts and events, so it's strong on breaking news and fast-moving topics.
DeepSearch citations
Pulls and cites sources directly instead of answering purely from training memory.
Strong reasoning & math
Competitive on academic and PhD-level science benchmarks, with sharply reduced hallucination rates.
Frequently asked questions
Try GPT and Grok for free
No credit card, no account required — pick GPT for general-purpose assistant, or Grok for current events & trending topics.