Grok
Grok pairs xAI's in-house models with live access to the X firehose, sold standalone and bundled into X Premium tiers.
Full Grok record →Head to head
Grok vs ChatGPT
Grok (xAI) and ChatGPT (OpenAI) both sit in Writing. ChatGPT shipped more tracked changes in the last 30 days (12 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Grok xAI | ChatGPT OpenAI |
|---|---|---|
| Segment | Writing | Writing |
| Version | Grok 4.6 | GPT-6 Astra |
| Entry cost | Free Playground available; pay-as-you-go API pricing with Grok 4.6 starting at $2.00/1M input and $6.00/1M output tokens. | Pricing not published in the provided documentation |
| Pricing tiers | Console / Playground free | Free Tier free |
| Model stack | grok-4.5 · grok-4.6 · grok-imagine-image · grok-imagine-image-2.0 · grok-imagine-image-quality · grok-imagine-video · grok-imagine-video-1.5 | GPT Image · GPT-5.2 · GPT-5.2 Thinking · GPT-5.4 · gpt-5.6 · gpt-6-astra |
| Context window | 500000 | 196K tokens on Plus |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 12 |
| Origin | Global | Global |
| Capabilities | Real-time X search, Think and Big Brain modes, Voice mode, Image generation, API access, text generation, agentic coding, voice agent | Voice mode, Deep research, Canvas, Agent mode, Projects, Connectors, Realtime API, Voice agents |
ChatGPT
The most widely used consumer AI assistant, spanning writing, analysis, images and voice.
Full ChatGPT record →