Claude guide

Claude conversation too long — how to fix it and continue

If you've hit the Claude conversation too long message, the conversation has reached the 200,000 token limit. This happens less often than the ChatGPT equivalent — Claude's context window is far larger — but when it does, it's usually mid-project.

Start free on Chrome

Immediate fix: recover your context

  • If Claude can still respond to short messages, ask for a comprehensive summary: goal, every key decision, all outputs produced, important context you've given, and what still needs doing.
  • Copy that summary and start a new conversation.
  • Paste the summary as your first message: 'I'm continuing work from a previous session. Here's the full context: [paste]. Please pick up from here.'
  • If Claude can no longer respond, scroll through the old conversation and manually copy the most important outputs and decisions.

Use Claude Projects to avoid this

  • Claude Projects are the best long-term solution for extended work. Projects store your instructions and uploaded documents in a separate persistent layer — so you can work across many separate conversations without filling the active context window. This means no need to manually summarise and restart for ongoing projects.

One-click backup with thredly

  • thredly is a Chrome extension that adds a Summarize button inside Claude (and ChatGPT and DeepSeek). Click it on a long thread and you get a clean, structured summary stored privately to your account. If you later hit the too-long limit, that summary gives you the essential context to carry forward into a fresh chat.

Related guides

Frequently asked questions

Does the 'conversation too long' message mean I lose all my work?

No — the conversation still exists and is fully readable. You just can't add more messages to it. Your outputs, documents, and discussion are all still there.

How does Claude compare to ChatGPT on context limits?

Claude's 200K context window is significantly larger than ChatGPT's default. GPT-3.5 has 16K tokens; GPT-4o has 128K. You typically have to be doing much heavier work to hit Claude's limit.