Best tool for what
ChatGPT vs Claude vs Grok: which chat assistant for which job?
None of the three wins every job. As of Oct 18, 2026, ChatGPT's newest feature is Intelligent UI, answers with charts, forms and mini-tools; Claude's newest models are Opus 5.5, Sonnet 5.5 and Haiku 5.5; Grok's newest model on xAI's news page is Grok 4.6, built for long-running agents. Benchmark numbers on this page are vendor-reported and labeled so.
Latest claim verified . By Found Motive Editorial. We have not tested these tools ourselves. How to read the labels.
Disclosure. Found Motive has no affiliate links on this page and earns nothing from these tools. If that changes, affiliate links will be marked next to the link and will not change what we say.
Comparison
| Criterion | ChatGPT (OpenAI) | Claude (Anthropic) | Grok (xAI) |
|---|---|---|---|
| Latest launch | GPT-6 with Intelligent UI rolled out Oct 7, 2026 (Free and Go from Oct 8). OpenAI says GPT-6 Sol powers Plus, Pro, Business and Enterprise, and GPT-6 Luna powers Free and Go. | Claude Opus 5.5 (Sep 22), Sonnet 5.5 (Sep 28) and Haiku 5.5 (Oct 7, 2026). | Grok 4.6, with a focus on long-running agents, is the newest model on xAI's news page; Grok Voice 3.0 followed on Oct 14. |
| Coding and agentic work | Codex CLI 0.163 lets you steer Codex mid-answer. OpenAI says Codex and Work models were not changed in the Oct 7 release. | Anthropic's own table for Opus 5.5: Terminal-Bench 4.0 66.4% vs 57.9% for GPT-6 Astra (OpenAI-reported); AutomationBench 40.0% vs 41.4% and Terminal-Bench-Science 58.7% vs 64.6%, with GPT-6 Astra ahead on those two. Anthropic cautions that benchmark margins are a less reliable guide to real-world differences. | Grok Build is xAI's coding agent; Grok 4.6 is available in Cursor and Grok Build at launch. |
| Writing | Not verified in our sources yet. | Anthropic says Opus 5.5 writing improved and "puts the most important information up front". | Not verified. One third-party test (llmwise, Oct 15, 2026, via OpenRouter, not the consumer apps) found GPT-6 Luna led writing; it is a single non-official test. |
| Interactive and visual answers | Intelligent UI: responses with graphics, tappable buttons, forms, charts and mini-tools such as calculators. Applies to Chat only. Not available on the Pro reasoning option (GPT-6 Astra). | Dashboards and Motion in beta; Docs, Slides and Design left beta. | Grok Bot can show apps such as Figma, Notion and Canva as interactive cards in the chat. |
| Voice | GPT-Live-1.1 brings more natural accents and new voices (French, German, Hindi, Japanese, Korean, Mexican Spanish, English). | Not verified in our sources yet. | Grok Voice 3.0 (Oct 14): xAI says it ranks #1 on the Speech-to-Speech Index (86.9), a vendor claim. See the voice page. |
| Real-time and social research | Not verified in our sources yet. | Not verified in our sources yet. | Grok Bot can search X and read posts and profiles without you connecting an X account. |
| Ecosystem and agents | Dots (always-on agents) for eligible Pro and Business Premium users, and Codex Cloud for tasks that keep running while your computer sleeps. | Cowork from any conversation; Design, Slides and Docs artifacts on every plan. Claude Code Review is generally available for Team and Enterprise. | Add-ins for Word, Excel, PowerPoint, Outlook and Google Workspace; Team Bots shared across a team. |
Free prompts
Try Intelligent UI (OpenAI's own demo prompt) UNTESTED TEMPLATE
break down the design of a 7-speed bike
Put it to work
What we have not verified
- Every benchmark number here is vendor-reported, none is ours. We have not run our own same-prompt test.
- Gemini and Perplexity are not covered because we have not verified their facts from official pages.
- We use only OpenAI's stated mapping of GPT-6 Sol and Luna to plans; third-party model names are inconsistent.
- Grok plan details are not covered.
Quick answers
Which is the best chat assistant?
None wins every job. ChatGPT added Intelligent UI (Oct 7, 2026), Claude released Opus 5.5, Sonnet 5.5 and Haiku 5.5, and Grok's newest listed model is Grok 4.6.
What is ChatGPT's Intelligent UI?
Answers that can include graphics, tappable buttons, forms, charts and mini-tools like calculators. It applies to Chat, and OpenAI says it is not on the Pro reasoning option (GPT-6 Astra).
Is Claude better at coding than ChatGPT?
Anthropic's own table shows Opus 5.5 ahead on Terminal-Bench 4.0 (66.4% vs 57.9%) and behind on AutomationBench and Terminal-Bench-Science. Those are vendor-reported, and Anthropic cautions margins are a less reliable guide to real-world differences.
What can Grok do that the others list as unverified?
Grok Bot can search X and read posts and profiles without you connecting an X account (xAI changelog, Oct 11, 2026).
What has not been verified?
Our own same-prompt tests, Gemini and Perplexity facts, and Claude's voice features.
Other jobs
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