Why Does Claude Cut Off Mid-Sentence? How to Fix

Why Claude Stops Writing Mid-Response

When Claude stops writing mid-sentence or cuts off in the middle of a code block, it is rarely a random crash. Almost always, the model has reached its maximum output token limit.

While Claude has a massive context window for reading inputs (up to 200,000 tokens), its *output* limit per single message is much smaller—typically 4,096 or 8,092 tokens, depending on the model version you are using. Once this output limit is reached, the generation stops instantly, even if the thought or code snippet is incomplete. Other potential causes include network interruptions, browser timeouts, or transient API hiccups.

Here is how to recover your missing output and prevent Claude from cutting off in future prompts.

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Step-by-Step Fixes for Cut-Off Responses

1. Ask Claude to Continue (The Right Way) Simply typing "continue" can sometimes make Claude restart from scratch or lose its train of thought. To get a seamless continuation, feed Claude a highly specific prompt that references where it stopped.

* Do this: Copy the last five to ten words of the cut-off message and type: > "You cut off mid-sentence. Please continue exactly where you left off, starting with: '[Insert last 5-10 words here]'." * If it stopped inside a code block, ask: > "You cut off inside a code block. Please repeat the code block starting from the last complete line: '[Insert last complete line of code]' and finish the script."

2. Segment Your Requests into Chunks Avoid asking Claude to generate massive, multi-part assets in a single prompt. If you ask for a 2,000-word article, a full database schema, and five matching scripts all at once, Claude will hit its output ceiling.

• Break your task into sequential steps.
• Example Prompt: "First, write only the outline and the first section of the report. Stop there and wait for my approval before writing the next section."
• By managing the flow, you ensure each response stays well under the output token limit.

3. Establish Explicit Output Boundaries Give Claude strict constraints regarding the length of its response. This forces the model to edit its thoughts and prioritize key information rather than rambling until it hits the limit.

• Add a constraint like: "Keep your response under 800 words" or "Be highly concise and avoid introductory or concluding filler text."
• For coding tasks, specify: "Write only the specific function that needs to be updated, rather than rewriting the entire file."
• These constraints help Claude complete its thoughts before running out of tokens.

4. Clear Out Conflicting Context (Start a New Chat) If your active conversation has grown very long, Claude has to process a massive amount of historical text before generating its new response. This can sometimes cause browser latency, timeouts, or incomplete responses.

• If a chat thread has dozens of messages, copy your current progress.
• Click Start New Chat.
• Paste the summarized context or previous code version and resume your work in a fresh, clean environment.

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When to Escalate

If Claude consistently stops writing after only one or two short paragraphs, the issue is not an output token limit. This behavior points to a service interruption, a browser script conflict, or an overly aggressive safety trigger.

• Check the Status Page: Visit Anthropic's official status page to see if there is an active outage or degraded performance affecting response delivery.
• Test on a Different Browser: Try accessing the web app via an incognito window or an alternative browser with all extensions disabled to rule out local script interference.
• Contact Support: If the cut-off behavior persists across multiple clean chats and different devices, click the help icon in the bottom right corner of the Claude web interface to report the bug to Anthropic support.