Side-by-side comparison
ChatGPT vs DeepSeek
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Which should you choose?
Both offer a chat assistant. ChatGPT bundles projects, files, voice and connected tools across a plan ladder. DeepSeek is recorded as free in chat, with its API billed separately by usage.
Choose ChatGPT if…
- You want projects, file and image inputs, voice and connected tools.
- You want a plan ladder to grow into, from a free plan to paid tiers.
Choose DeepSeek if…
- You want a free chat assistant for reasoning, coding or writing.
- You are building something and want a separately metered model API with explicit usage costs.
Check before you pay: On DeepSeek, free chat does not mean free API use: API tokens come from a purchased or granted balance. On ChatGPT, API billing is separate from the chat plans.
Based on our directory records reviewed 24 October 2026, not on a hands-on test. Confirm current plans with each provider.
Tip: on a small screen, swipe the table sideways.
| What matters | 🤖 ChatGPT | 🐋 DeepSeek |
|---|---|---|
| What it does | OpenAI's AI assistant for writing, coding, research, file analysis, and connected work across chats and projects. | AI assistant and model platform for reasoning, coding, writing, and conversational work, with separately billed APIs. |
| Best for | Writing, research, coding, and file-based tasks in one assistant | Chat assistance or separately metered model API workflows |
| Pricing model | Free plan + paid | Free |
| Plans | Plan details not recorded yet | Plan details not recorded yet |
| Free-plan limits | Free is $0 with unlimited text chats on GPT-6 under abuse guardrails, plus limited uploads, image creation, voice, deep research and Codex access. Go is $8 a month and may include ads, Plus is $20, and Pro starts at $100 with three usage tiers. | Consumer chat and API access are separate. API tokens deduct from purchased or granted balance; free chat does not mean free API inference. |
| Platforms | Web, macOS, Windows | Web, API |
| Key capabilities | Projects and chats Web search File and image inputs Voice conversations Connected tools and plugins | AI conversations Reasoning tasks Coding assistance Writing help API models |
| Strengths | Keeps drafting and follow-up questions in one conversation. | Use the chat experience for a task, or choose an API integration with explicit usage and cost controls. |
| Limitations | The ChatGPT Free plan includes limited image creation. Uploads and other advanced features have plan-dependent allowances. API billing is separate; check current account availability and provider pricing. For tightly bounded evidence, give it source text instead of relying on recollection. | Consumer chat and API access are separate. API tokens deduct from purchased or granted balance; free chat does not mean free API inference. |
| No signup required | Not verified | Not verified |
| No credit card required | Not verified | Not verified |
| Free trial | Not verified | Not verified |
| Details last reviewed | 2026-10-15 | 2026-10-06 |
| Official pricing / source | Check pricing | Check pricing |
| Next step |
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