ChatGPT
by OpenAI
OpenAI's flagship assistant. Strong at general reasoning, writing, code. GPT-4o free, GPT-5 + o3 on Plus ($20/mo).
Free / $20+
OpenAI flagship vs xAI's real-time challenger.
ChatGPT vs Grok
VS
Grok
by xAI
xAI's Grok has real-time access to X posts, making it uniquely strong for news, trending topics, and social listening. Grok 3 matches frontier models on benchmarks. Included in X Premium.
Free / $30+
Head-to-head
| Feature | ChatGPT | Grok |
|---|---|---|
| Vendor | OpenAI | xAI |
| Category | Conversational AI | Conversational AI |
| Free tier | Yes | Yes |
| Starting price | Free / $20/mo | Free / $30/mo |
| Strengths | widest feature set, huge plugin/GPT ecosystem, voice mode | real-time X/Twitter data, no safety over-refusals, DeepSearch mode |
| Weaknesses | rate-limited on free tier, no transparent sources | requires X Premium, no file uploads on free tier |
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