Skip to content
OpenAI · 3 Modelle

ChatGPT

The current GPT models from OpenAI right in your browser: type your question and start with GPT-6 Luna, no sign-up, no subscription, English interface.

15,000

The GPT models on ChatX

Choose the model that fits your task. Fast models are enough for everyday questions, while the larger models pay off for long texts, analyses, and code.

GPT-6 Luna

Schnell und günstig für Alltagsfragen

Free with subscription
  • No sign-up required
  • Understands images
  • Web search
  • Thinking mode

approx. 92 tokens per response

GPT-6.1 Sol

Starkes Allround-Modell für Texte, Analyse und Code

  • With account
  • Understands images
  • Web search
  • Thinking mode

approx. 1,823 tokens per response

GPT-6 Astra

OpenAIs Spitzenmodell für anspruchsvolle Aufgaben

  • With account
  • Understands images
  • Web search
  • Thinking mode

approx. 9,112 tokens per response

OpenAI's GPT models, explained simply

Behind ChatGPT are the GPT models from OpenAI. On ChatX you use the same models through the official API, with an English interface and billing per reply instead of a monthly subscription. The page starts with the preset, low-cost model GPT-6 Luna, which you use without signing up and which is enough for everyday questions, short texts and translations; it already comes with a thinking mode. With a free account you switch to GPT-6.1 Sol or GPT-6 Astra for long texts, analyses and code, and for models with web search you turn the search on so the reply includes current sources. With an account you can also upload photos, PDF and Word files and ask questions about them.

It's this easy

  1. 1

    Enter your question

    Type your question or task into the input field. You don't need to sign up for this.

  2. 2

    Choose a model

    Start with the default model or switch to a more powerful one anytime.

  3. 3

    Keep going

    With a free account, you save your chats, upload files, and get free tokens every day.

What you can do with ChatGPT on ChatX

Write texts

Emails, job applications, social media posts, or product descriptions in your own tone.

Translate

Translate and polish texts between English, German, and many other languages.

Understand documents

Upload a PDF or Word file, ask questions about it, and get summaries.

Code

Have code explained, errors found, and functions written for you.

Learn

Have difficult topics explained step by step, with examples.

Understand images

Upload a photo or screenshot and ask questions about it.

Costs and free allowance

  • Without signing up, you get 15,000 tokens to try it out. That's enough for around 163 answers with GPT-6 Luna.
  • With a free account, you get 15,000 tokens as a gift every day.
  • If you need more, you can buy tokens with no subscription or choose a monthly plan. Billing is based on the model's actual usage.
View pricing

Frequently asked questions

Is this the real ChatGPT?

You use the real GPT models from OpenAI through their official API. The interface comes from ChatX, not from OpenAI.

Which GPT model should I pick?

For everyday questions GPT-6 Luna is enough, and it runs without signing up. For demanding texts, research and code, GPT-6.1 Sol or GPT-6 Astra with thinking mode is worth it; both need a free account.

Can ChatGPT search the internet here?

For models with web search (globe icon in the input field) you can turn the search on in the chat. The reply then includes current sources.

How is this different from a subscription with the provider?

There is no mandatory subscription on ChatX: you start without signing up with a starting allowance and afterwards pay only for your actual usage per reply. You also get the models from OpenAI and other providers in one place and switch whenever you like.

Are there message limits?

To prevent abuse, at most 30 messages per minute are possible. Beyond that, token usage counts: without signing up you have a starting allowance, with an account a daily allowance, and beyond that you buy tokens as needed. Without credit there is also a character limit per message.

How well does ChatGPT write in English?

The GPT models handle standard English well, in different tones too. With regional slang or highly technical writing, it's worth giving the reply a quick check.

Can I upload images and documents?

Yes, with a free account: you upload photos, screenshots, PDF and Word files and ask questions about them. Without signing up, uploads are not enabled.

Do I need to sign up?

No. You can start right away without an account. With a free account, your chats are saved and you get free tokens every day.

How are tokens calculated?

ChatX bills based on the actual usage reported by the provider for your request. Large models cost more tokens per reply than small ones. You can see the approximate value for each model.

What happens to my data?

Your chats are stored only for you and can be deleted at any time. Requests are sent to the respective model provider to be answered. Details can be found in the privacy policy.

Is ChatX an official offering from OpenAI?

No. ChatX is an independent service that provides access to the models from OpenAI and other providers through their official interfaces.

From the blog

Blog →

More AI models on ChatX

Loading…