Claude Sonnet 3.5 has been retired. We recommend switching to Claude Sonnet 4.6 for the best experience.

Chat with Claude Sonnet 3.5

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This is an earlier model. Claude Sonnet 4.6 is the current Anthropic model and is faster and more capable. Try Claude Sonnet 4.6 →
Draft an email Professional or casual
Help with code Write, fix, or explain
Summarize this Paste any text
Give me ideas Creative suggestions

The original Claude 3.5 Sonnet (June 2024 release): fast, capable, and great as a free-tier general assistant.

Claude Sonnet 3.5 at a glance

ProviderAnthropic
Access on AskAI.freeAvailable for a free first question with no signup.
Best first testQuick answers and how-to questions
Model positionEarlier release; compare it with Claude Sonnet 4.6.

What makes Claude Sonnet 3.5 different

Sonnet 3.5 is the free legacy Claude option on AskAI.free. It is a good low-cost way to test Claude's writing style and structure on a real prompt. For demanding code, long source material or publishable work, compare the draft with a current Sonnet before using it.

What Claude Sonnet 3.5 is best for

  • Quick answers and how-to questions
  • Simple writing tasks (emails, replies, captions)
  • Coding snippets and bug fixes
  • Explaining technical concepts simply
  • Comparing options or summarising lists

How to use Claude Sonnet 3.5

Step 1 Ask Claude 3.5 Sonnet your everyday how-to and quick-answer questions directly: it is a capable free-tier general assistant for short, common tasks.
Step 2 For simple writing such as replies, captions or short emails, give Claude 3.5 Sonnet the gist and let it return a clean draft you can send with light edits.
Step 3 Use follow-ups to get a coding snippet, a simpler explanation of a concept, or a quick side-by-side comparison of a few options.

Example prompts

Unlimited Claude Sonnet 3.5, free for 7 days

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Frequently asked questions

Is Claude 3.5 outdated?

It's older than 3.7/4 but still very capable for everyday questions, and it's free to use here.

How does it compare to ChatGPT 4o?

They're similar in quality on common tasks. Claude 3.5 tends to write longer, more structured responses; 4o is faster and more conversational.

Why use 3.5 instead of 3.7?

3.5 is on the free tier with no extra credit multiplier. Pick it for casual or high-volume use.

Will Claude 3.5 stop working someday?

Eventually, yes. Anthropic will deprecate older versions. We'll switch this page to a successor when that happens.

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