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How much data does ChatGPT use?
ChatGPT uses 10 MB per hour when texting and over 250 MB per hour when generating videos. Learn all about ChatGPT data usage and how to use it with an eSIM
ChatGPT uses less than 5 MB per hour for text-based conversations, though creating images and videos can push data usage significantly higher.
There are also two separate types of data to consider: mobile data consumption and the personal data OpenAI stores.
This guide covers ChatGPT data usage, so you know how to prepare if you’re working remotely and how the Holafly eSIM can help you reduce data roaming costs.
Unlimited data. Peace of mind.
Keep talking with ChatGPT without worrying about your data plan.
How much mobile data does ChatGPT use?
ChatGPT data usage will depend heavily on the activities you engage in. It’s worth considering whether you’re using a free or paid version, too.
But a light chat won’t consume more than 0.5 MB, so even if you engage in a lot of chatting, you won’t use more than 10 MB in an hour.
But if you use ChatGPT to create images with DALL-E, use voice chat instead of texting, or create videos with Sora, data usage can exceed 250 MB per hour.
Disclaimer: The data in this review is accurate as of 28 July 2026 and is subject to change
ChatGPT data usage by feature
ChatGPT allows users to do many things, such as texting, generating images, and uploading files for specific purposes.
Here’s a quick breakdown of ChatGPT data usage by feature:
| Text chat (Light) | 1 MB per hour |
| Text chat (Heavy) | 10 MB per hour |
| Image generation with DALL-E | 2 to 5 MB per image |
| Video generation with Sora | 20 to 100 MB, based on length |
| File uploads | Depends on file size |
| Voice mode | 60 to 120 MB per hour |
| Deep research | 1 to 3 MB every 5 to 30 minutes |
How many GB does ChatGPT use per hour?
ChatGPT will use less than 1 GB per hour, with the final data usage depending on what activities you engage in.
Text-only, even for heavy users, won’t use more than 10 MB per hour. This means 1 GB can easily last over a month.
However, in image and video generation, data usage increases. A single image can consume up to 5 MB, while a video can use close to 50 MB.
Uploading files can also significantly increase data usage, depending on the file size and what you plan to do with it: creating a video, an image, or plain text.
Knowing all this is important to understand how much data you need to travel if you plan to use ChatGPT abroad.
Does ChatGPT save or store your data?
Yes, OpenAI, the owner of ChatGPT, stores some data to provide a better, more customizable user experience.
Aside from your account details, OpenAI will store prompts, instructions, images, files, and chats, which also help train the AI for better results. Users can disable this by going to their account settings and turning off “Data Controls.”
For full details on how personal data is handled, review the OpenAI privacy policy directly.
How to use ChatGPT with less data
Even though ChatGPT doesn’t use a lot of mobile data, you can still reduce how much data you’re using.
- While on limited data, use text mode instead of voice mode to reduce data usage.
- Don’t use DALL-E or Sora on a limited plan; save it for WiFi or an eSIM unlimited plan.
- Avoid re-generating replies; copy what’s important and change the prompt if needed.
- Upload files to ChatGPT while using a WiFi or unlimited data plan to avoid high data usage.
- Keep the free plan if you’re not a heavy user to avoid unnecessary data usage from using image and video generation.
Use ChatGPT abroad without data worries with Holafly
ChatGPT isn’t a heavy-data consumption app, but when working remotely, exploring a foreign country, or using AI tools on the go, data usage can easily add up.
With the Holafly eSIM, you can use ChatGPT without limitations. With unlimited plans in over 200 destinations, even generating videos and images won’t eat into your data allowance.
If you’re a digital nomad, then you can rely on Holafly Plans to keep using ChatGPT in over 170 destinations with an unlimited data monthly eSIM subscription.
Every Holafly eSIM also comes with Always On, a built-in 1GB monthly backup at no extra cost — so you stay connected even when your plan runs out unexpectedly.
Unlimited data. Peace of mind.
Keep talking with ChatGPT without worrying about your data plan.
Wondering how much data other apps use? Check the data usage for popular apps before traveling abroad.
FAQs
ChatGPT uses less than 1 GB of data per month for texting, but can easily increase data usage when generating videos or images, or uploading files.
ChatGPT data usage depends on what you use it for. Data usage can easily range from 10 MB to over 250 MB per hour.
No. ChatGPT doesn’t use much mobile data, and even less on a free plan.
Plans that may interest you
I first started my content creation journey as a freelancer in 2019, before connecting with Holafly in 2021. At Holafly, my travel and tech interests come together in one place as I craft high-quality articles about the eSIM and related markets. My content aims to help travelers stay connected, wherever they are.
