Llama is open-source and free to host yourself; ChatGPT is easier to use and more capable out of the box.
by Meta
Llama is Meta's family of open-weight language models — from Llama 3.1 8B to Llama 3.3 70B. Free to download, fine-tune, and deploy without API costs. Powers hundreds of apps, local AI tools, and enterprise deployments. Llama 3.1 405B is competitive with GPT-4 on many benchmarks.
by OpenAI
OpenAI's flagship assistant. Strong at general reasoning, writing, code. GPT-4o free, GPT-5 + o3 on Plus ($20/mo).
| Feature | Llama | ChatGPT |
|---|---|---|
| Vendor | Meta | OpenAI |
| Category | Conversational AI | Conversational AI |
| Free tier | Yes | Yes |
| Starting price | Free | Free / $20/mo |
| Strengths | fully open-source, run locally (no data sent to Meta), customisable and fine-tuneable | widest feature set, huge plugin/GPT ecosystem, voice mode |
| Weaknesses | requires technical setup to self-host, slower than API services without GPU | rate-limited on free tier, no transparent sources |
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