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Anthropic · 4 Modelle

Claude

The Claude models from Anthropic are suited to writing, long documents and programming tasks. Start with Claude Haiku 4.5 right in your browser, no sign-up and no subscription.

15,000

The Claude 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.

Claude Haiku 4.5

Schnelles Claude-Modell für den Alltag

  • No sign-up required
  • Understands images

approx. 912 tokens per response

Claude Sonnet 5

Präzise Texte und zuverlässiger Code

  • With account
  • Understands images
  • Web search

approx. 1,823 tokens per response

Claude Opus 5.5

Tiefes Denken für komplexe Arbeit

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

approx. 3,645 tokens per response

Claude Fable 5.1

Anthropics stärkstes Modell

  • With account
  • Understands images
  • Thinking mode

approx. 9,112 tokens per response

Claude by Anthropic, explained simply

Claude is developed by Anthropic and is suited to well-structured writing, precise wording and programming tasks. The Claude models are built for long inputs. On ChatX you choose between several Claude models: Claude Haiku 4.5 for everyday use runs without signing up; with a free account you also get Claude Sonnet 5, Claude Opus 5.5 and Claude Fable 5.1, Opus and Fable with thinking mode for deep analyses and long texts, and web search on the models that offer it. Everything runs through Anthropic's official API, with an English interface and billing per reply instead of a monthly subscription. You do not need an account with the provider.

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 Claude 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 16 answers with Claude Haiku 4.5.
  • 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

What is Claude good for?

Claude is suited to natural, well-structured writing, programming and working through long documents.

Is Claude available in English?

Yes. Claude understands and writes English and replies in the language you write in. The ChatX interface is in English as well.

Which Claude model fits which task?

For everyday use Claude Haiku 4.5 is enough, and it runs without signing up. For complex tasks and long analyses you choose Sonnet 5, Opus 5.5 or Fable 5.1 with a free account; Opus and Fable offer the thinking mode.

Do I need an Anthropic account?

No. On ChatX you use Claude without an account with the provider and start without signing up with a starting allowance. With a free ChatX account your chats are saved, and you get a daily allowance and access to the larger models.

Can Claude search the internet?

For the Claude models with web search (globe icon in the input field) you turn the search on in the chat and get current sources in the reply.

Can Claude create images?

No, Claude does not generate images itself, but it understands uploaded photos and screenshots when you are signed in with an account. You create images on ChatX with the AI image generator, also without signing up.

How long can documents be?

Document upload needs a free account. Without credit there is a character limit per message (currently 10,000 characters with an account), with credit or a subscription there is no plan limit; technically up to 200,000 characters per message with an attachment are possible. Large models cost more tokens per reply than Haiku.

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 Anthropic?

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

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