Anthropic · Chat

Claude AI online: Opus, Sonnet and Haiku

Claude is Anthropic’s family of models for writing, code and working through documents. The AstraGPT chat has seven Claude versions, from the fast Haiku 4.5 to Opus 5.5. You log in with Telegram, and you don’t need a separate Anthropic subscription.

Open Claude in chatClaude Opus 5.5 — chat limit usage ×4

AstraGPT is an independent service. The models are made by their developers; we give access to them through our studio and aren’t affiliated with those companies.

Prices

Chat limit usage
Claude Opus 5.5×4
Claude Opus 5×5
Claude Fable 5.1×10
Claude Sonnet 5.5×2
Claude Opus 4.6×5
Claude Sonnet 5×2
Claude Sonnet 4.6×3
Claude Haiku 4.5×1

Prices and capabilities checked against the studio catalog on October 7, 2026

How to start

  1. Press Open Claude in chat and log in with Telegram.
  2. Pick a Claude version in the Model list.
  3. Type your question or attach a file.

Which Claude versions are available

  • Claude Opus 5.5 — Anthropic’s new flagship, thinking always on, five depth levels. Chat limit usage ×4.
  • Claude Opus 5 — the previous flagship; thinking can be turned off. ×5.
  • Claude Fable 5.1 — a model with thinking always on. ×10.
  • Claude Opus 4.6 — the previous generation’s flagship. ×5.
  • Claude Sonnet 5.5 — the newest Sonnet (September 28): code, new features, everyday work. ×2.
  • Claude Sonnet 5 — the fast everyday Claude. ×2.
  • Claude Sonnet 4.6 — the previous generation’s Sonnet. ×3.
  • Claude Haiku 4.5 — the fastest and most economical version. ×1.

What Claude can do in AstraGPT

  • Reads up to 10 files per message: PDFs, documents, spreadsheets, photos and screenshots.
  • Searches the web when a question is about recent events.
  • Remembers the conversation: chats are shared between the site and the Telegram bot.
  • Answers alongside other models in Discussion mode.

How to start using Claude

You don’t need an Anthropic account. Open the chat, log in with Telegram and pick the Claude version you want in the model list. If you need a bigger limit, buy a plan with crypto or Telegram Stars.

Claude pricing

Every Claude version is open on every plan, including Free. Messages don’t use credits but the chat limit: it follows the real cost of answers, and Opus uses it faster than Sonnet and Haiku. Paid plans cost 410 ₽ (≈ $4.80) to 5,775 ₽ (≈ $67.56) for 30 days and raise the limit. When the limit runs out, DeepSeek V4 Flash and GLM 5.3 Flash keep working.

FAQ

Can I use Claude for free?
Yes: every Claude version is open on the Free plan within the base limit. For longer work with Opus you need a paid plan.
Do I need a Claude subscription?
No need to buy an Anthropic plan. Pay for an AstraGPT plan with crypto or Telegram Stars, and Claude is available in the chat with a bigger limit.
Can I compare Claude with GPT-6 and Gemini?
Yes: switch the model in the same chat, or turn on Discussion — three models answer the same question, and a fourth sums up.
Which Claude version should I pick?
For everyday tasks — Sonnet 5. For complex code and long documents — Opus 5.5. For quick short answers — Haiku 4.5.
Is Claude Code available?
No. Claude Code is a separate Anthropic tool for the terminal. Here Claude works in the chat: send code as text or a file and ask it to review, fix or write new code.
Is this the official Claude website?
No. Claude is developed by Anthropic; AstraGPT is an independent service that gives access to Claude models in its chat.
What happens when the limit runs out?
Claude becomes available again when the limit frees up — the site shows the time. Until then you can keep going with DeepSeek V4 Flash and GLM 5.3 Flash. To make the limit last longer, use Haiku 4.5 or Sonnet 5.5 for simple questions: they use it several times more slowly than Opus.

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