ChatGPT vs Microsoft Copilot
Two strong options — here's where they genuinely differ, and which one fits what you're trying to do.
| ChatGPT | Microsoft Copilot | |
|---|---|---|
| Developer | OpenAI | Microsoft |
| Current model | GPT-5.5 (free) / GPT-5.x ladder on paid tiers | OpenAI models + Microsoft fine-tunes |
| Free tier | Yes — limited GPT-5.5 messages (roughly 10 per 5 hours), with browsing, file uploads and image analysis; ad-supported elements introduced in 2026 | Yes — Copilot chat free with a Microsoft account, including in Windows and Edge |
| Paid from | $8/mo (Go) — Plus $20/mo | ~$20/mo (Copilot Pro); M365 Copilot ~$30/user for business |
| Plan ladder | Free · Go $8 · Plus $20 · Pro $100 · Pro Max $200; Business $25/user/yr-billed | Free · Pro ~$20 · Microsoft 365 Copilot ~$30/user (business) |
| Context window | Large (varies by tier/model) | Varies by surface |
| Multimodal | Text, images, voice, file analysis, image generation | Text, images, image generation, voice; embedded in Office apps |
| Public API | ✔ Yes | ✔ Yes |
| Open weights | ✕ No | ✕ No |
| Data & privacy | Consumer chats may be used for training unless you opt out; UK data residency available on Enterprise/API tiers | Commercial data protection on business tiers; consumer tier tied to Microsoft account |
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The verdict
Both ChatGPT and Microsoft Copilot are solid choices if you mainly want writing & content, business & teams — for those needs you won't go far wrong either way.
Choose ChatGPT if your priority is good at everything, image generation, voice conversation.
Choose Microsoft Copilot if you care more about microsoft 365 users.
Both offer free tiers — the genuinely sensible move is to try each on a task you actually do, then pay for the one that earned it.