ChatGPT (incl. Work & Codex) vs Grok
Last checked 2026-10-15
Based on published features, pricing and documentation, checked 2026-10-15. No hands-on testing. No hands-on testing; this compares published information only.
| ChatGPT (incl. Work & Codex) | Grok | |
|---|---|---|
| Vendor | OpenAI | xAI |
| Summary | General assistant with Chat, Work (agent for long multi-step tasks and deliverables; replaced agent mode) and Codex (coding agent across app, editor, terminal and cloud). | Assistant with DeepSearch research combining the web and live X posts, plus image and short video generation and voice. |
| Free tier | Yes (verified) | Yes (verified) |
| Cheapest verified paid plan | See official site | See official site |
| Plans | Free: Free Go: See official site Plus: See official site Pro: See official site Business / Enterprise: See official site | Free: Free SuperGrok: See official site |
| Capabilities | Chat, Web search, Agent: multi-step tasks, Scheduled tasks, Cloud browser, Docs/slides/spreadsheets, Image generation, Voice, Coding agent (Codex), Cloud coding tasks, PR review, Computer use (Codex), App connectors | Chat, DeepSearch, Real-time X data, Image generation, Video generation, Voice |
| Rubric score | 88/100 | 61/100 |
| Sources | help.openai.com/en/articles/20001275-chatgpt-work-and-codex chatgpt.com/codex/ chatgpt.com/pricing | x.ai/grok |
Tasks both are listed for (42)
- Summarize a long document
- Proofread and fix grammar
- Cited quick answers
- Deep research report
- Literature scan
- Compare products or vendors
- Summarize a ticket thread
- Generate an illustration
- Edit an existing image
- Storyboard frames
- Describe or analyze an image
- Plan your week
Only ChatGPT (incl. Work & Codex) (68)
- Rewrite for tone
- Outline a long-form article
- Draft in a shared canvas
- Style-guide enforcement
- Explain unfamiliar code
- Write unit tests
- Fix a failing build
- Refactor across files
- Automated PR review
- Issue to pull request