Claude 'Taking Longer Than Usual': Causes, Fixes, and Prevention

Article summary by AI chatpowered by Claude

While waiting for a response on Claude.ai, you may suddenly see the message "This is taking longer than usual. We'll retry shortly. (Attempt 3)." This is not a bug — it is a UI notification letting you know that Claude is automatically retrying in the background. This article explains how this message works, what causes it, and what you can do right away to address it.

結論powered by Claude
While waiting for a response on Claude.ai, you may suddenly see the message "This is taking longer than usual. We'll retry shortly. (Attempt 3)." This is not a bug — it is a UI notification letting you know that Claude is automatically retrying in the background. This article explains how this message works, what causes it, and what you can do right away to address it.
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What Does "Taking Longer Than Usual" Mean?

This message is an automatic retry notification displayed by the Claude.ai frontend. When Claude detects that generating a response is taking longer than normal, it automatically resends the same request in the background. The number of retries is shown on screen as "Attempt 1," "Attempt 2," and "Attempt 3."

Here is how it compares to other error messages:

Message Meaning Impact on User
Taking longer than usual Generation is slow; auto-retry in progress Response may still arrive if you wait
529 Overloaded Server overloaded; request rejected Manual retry required
Usage limit reached Usage quota has been reached Cannot use until plan resets

Of the three, "Taking longer than usual" is the least severe — in most cases, simply waiting will result in an answer arriving.

Common Causes

Cause 1: Temporary Server Congestion

This is the most common cause. During periods of high traffic to Anthropic's servers, processing can take longer. Looking at the past 90 days of incident history on status.claude.com, "Elevated errors" occur intermittently, and delay messages tend to appear during those periods. This is especially noticeable with computationally expensive models like Opus 4.8.

Source: status.claude.com — Incident History (accessed: 2026-06-18)

Cause 2: Extended Thinking Mode Running

When Extended Thinking is enabled, Claude performs a lengthy internal reasoning process before returning a response. The longer the thinking, the more time it takes — making it more likely to hit the timeout threshold. This happens particularly often when using thinking mode for complex problems.

Cause 3: Long or Complex Prompts

When you paste large amounts of code or long documents for processing, the number of input tokens increases and processing time grows. The more tokens there are, the higher the server-side load, making timeouts more likely.

Cause 4: Network Environment Issues

If your internet connection is unstable or you are accessing Claude through a VPN, the response stream from Claude may be interrupted, causing the frontend to detect a timeout. This is especially worth checking if you are connected via a VPN.

Cause 5: Immediately After a Model Update or Plan Change

Requests may be delayed immediately after a Claude model update or after changing your plan. This can happen because there is a brief lag before the settings propagate across all servers.

How the Attempt Count Increases

The "Attempt" number displayed on screen represents the cumulative number of retries, and it increases in the following order:

  1. Initial request sent → if no response, "Attempt 1" is shown
  2. First retry → if no response, "Attempt 2" is shown
  3. Second retry → if no response, "Attempt 3" is shown

If no response arrives after a certain number of attempts, you will eventually be taken to an error screen (such as 529). However, it is not uncommon for a response to appear even at "Attempt 3."

What You Can Do Right Now

Fix 1: Just Wait (Most Effective)

Even while the message is displayed, Claude continues processing in the background. In most cases, simply waiting 1–3 minutes without doing anything will result in the response arriving. The best approach is to stay on the page without closing it or switching browsers.

Fix 2: Reload the Page and Resend

If nothing changes after 3 minutes, reload the browser and resend the same message. However, reloading can erase the mid-conversation state, so it is recommended to copy your prompt before reloading if it is important.

Fix 3: Split or Simplify Your Prompt

If the same request repeatedly causes delays, try breaking it up:

  1. Paste long documents in smaller sections, paragraph by paragraph
  2. Send multiple questions one at a time instead of all at once
  3. Turn off thinking mode for questions that do not require Extended Thinking

Fix 4: Switch to a Different Model

If delays occur frequently with a computationally expensive model like Opus 4.8, switching to a faster model like Sonnet 4.6 may help. This is a useful option when speed takes priority over response quality.

Fix 5: Check Your Browser Environment

  1. Clear your browser cache and cookies
  2. Temporarily disable extensions such as ad blockers or VPNs
  3. Try opening claude.ai in an incognito/private window
  4. Try the same action in a different browser (e.g., Chrome ↔ Firefox)

Checking the Status at status.claude.com

If delays persist for a long time, it is recommended to check Anthropic's official status page.

Source: status.claude.com (accessed: 2026-06-18)

This page shows:

  • Real-time operational status for claude.ai, the Claude API, Claude Code, and more
  • Uptime over the past 90 days (as of 2026-06-18, claude.ai was at 98.95%)
  • Information on any ongoing incidents

Incidents go through three stages: "Investigating" → "Monitoring" → "Resolved." If an incident is in the "Investigating" stage, the issue is on Anthropic's end, and there is little you can do individually — the only option is to wait for it to be resolved.

Special Notes When Using Extended Thinking

When Extended Thinking mode is enabled, the "Taking longer than usual" message will appear for longer than normal. This is by design, not a bug.

Because Extended Thinking has Claude perform a lengthy internal reasoning process, even simple questions can take anywhere from tens of seconds to several minutes. The higher the thinking budget (maximum token count) is set, the longer processing tends to take.

To reduce delays while using Extended Thinking, either turn off thinking mode when it is not needed or set a lower thinking budget.

How Long Should You Wait? — A Reference Guide

Use the following as a guide for deciding how long to wait:

Situation Suggested Wait Time
Standard questions 1–2 minutes
With Extended Thinking 3–5 minutes
Processing long documents 3–5 minutes
No change after the above Reload and retry

Checklist If the Message Appears Frequently

If the message keeps appearing in the same environment, check the following:

  1. Internet connection stability — Are other web services working normally?
  2. VPN usage — Is a VPN interrupting the response stream?
  3. Your plan type — Free plans may face stricter throttling during high-load periods
  4. Anthropic status page — Is there a widespread outage?
  5. Browser and cache — Have you tried clearing the cache or disabling extensions?

Frequently Asked Questions

Q: Can a response arrive even after Attempt 3?

Yes, it can. After "Attempt 3" is shown, processing may still be continuing in the background, and a response may arrive after a while. However, if nothing changes after 5 minutes or more, the page will often transition to an error screen — in that case, manually reload and retry.

Q: Does this happen on paid plans too?

Yes. Users on Pro, Max, Team, and Enterprise plans can experience this as well. Since the primary cause is high server-side load, it can happen regardless of plan type. However, Free plans have lower resource allocation priority and tend to experience this more frequently than paid plans.

Source: Claude Support: Usage and rate limits (accessed: 2026-06-18)

Q: What should I do if it happens at the same time every day?

If delays consistently occur at a specific time, it is possible that server load is high during US daytime hours (which corresponds to late night to early morning in Japan). First check the history on status.claude.com, and if incidents are recurring, contacting Anthropic Support is also an option. In some cases, simply changing when you use the service is enough to resolve the issue.

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Clauder Navi 編集部
@clauder_navi

Anthropic の Claude / Claude Code を中心に、日本のエンジニア向けに最新動向と実務 を毎日発信。 運営方針 は メディアについて をご覧ください。