Same. Specifically when using Sonnet inside a project. Sonnets working outside of projects for me. Haiku is working inside the project Answer from bbyrd52 on reddit.com
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Hostingseekers
hostingseekers.com › hostingseekers - blog › how to fix claude ai internal server error (500, 403, 429 & more)
How to Fix Claude AI Internal Server Error
August 8, 2025 - Most of the time, the error is a temporary glitch. A quick refreshment can work wonders. Try refreshing a few times, but avoid excessive attempts to prevent temporary blocks. If the servers are overloaded, patience is the key.
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ClaudeLog
claudelog.com › home › faqs › server error
What Does Claude Code Internal Server Error Mean | ClaudeLog
Claude Code internal server errors are temporary backend processing issues on Anthropic's servers, not problems with your setup.
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GitHub
github.com › anthropics › claude-code › issues › 3128
API 500 Internal Server Error in Claude Code Generation Endpoint · Issue #3128 · anthropics/claude-code
July 8, 2025 - Bug Description erro 500 api claude code Environment Info Platform: linux Terminal: vscode Version: 1.0.43 Feedback ID: f6171339-fb25-4de7-a6e8-e2e27a87e462 Errors [{"error":"Error: EISDIR: illegal operation on a directory, read\n at Mod...
Published   Jul 08, 2025
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Latenode
community.latenode.com › bugs & issues
Error messages Claude API - Bugs & Issues - Latenode Official Community
November 27, 2024 - I’ve been running a flow for re-writing articles for a client based on their current URL. I’m running into a few errors now then: exec command error: request to pd server code 500 error: Error: {“type”:“error”,“error”:{“type”:“api_error”,“message”:“Internal server error”}} exec command error: request to pd server code 500 error: Error: {“type”:“error”,“error”:{“type”:“overloaded_error”,“message”:“Overloaded”}} How do I handle these errors best when the flow is active?
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GitHub
github.com › microsoft › vscode-copilot-release › issues › 5696
claude 3.5 / 3.7 - internal server error 500 · Issue #5696 · microsoft/vscode-copilot-release
February 25, 2025 - Type: Bug we are getting a lot of rate limiting and now internal server error 500. Extension version: 0.25.2025022501 VS Code version: Code - Insiders 1.98.0-insider (ac0e8f0f32e3de145dc3aa11d8182f208a05397f, 2025-02-25T05:06:39.916Z) OS...
Published   Feb 25, 2025
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Webvator
webvator.com › home › how to fix claude ai internal server error (what you need to know)
How to Fix Claude AI Internal Server Error (What You Need to Know) | Webvator
May 29, 2025 - While repeatedly refreshing every few seconds won’t help, reloading the page every 5–10 minutes may bring Claude back when the issue is resolved. Do not clear your browser cache or reset your modem — those steps won’t help in this case, since the problem isn’t on your device. Most Internal Server Errors are temporary and resolve themselves within a few minutes to a couple of hours.
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Windows Report
windowsreport.com › fix › web apps › 5 easy ways to fix the claude internal server error
5 Easy Ways to Fix the Claude Internal Server Error
October 23, 2025 - Solve the Claude internal server error by clearing the cache or with a quick change in your payment method.
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Reddit
reddit.com › r/claudeai › internal server error when claude finishes response
r/ClaudeAI on Reddit: Internal Server Error when Claude finishes response
March 6, 2025 -

Hi Everyone, I'm relatively new to Claude but used all other AI competitors before. Somehow when I use Claude it just wont give me a response. It starts thinking and even writing the reponse, but when it finishes i just recieve an "Internal Server Error". I tried using another browser (Firefox and Edge), also restarting the browser. I also tried resetting my IP.

Does anyone else has this issues? Is there any fix?

Find elsewhere
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Zypa
zypa.in › claude-ai-internal-server-error
Fix Claude 500 Internal Server ERROR - Expert's Fix (2025)
2 weeks ago - Here's how you can fix 500 – Internal Server Error, 429 – Too Many Requests, 403 – Forbidden, 400 – Bad Request, Network Connectivity Error, Session Timeout
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Writingmate
writingmate.ai › blog › is claude ai down? here's what you need to know
Is Claude AI Down? Here's What You Need to Know
June 9, 2025 - Several factors could contribute to Claude AI experiencing downtime, including: Internal server error: Like any online service, Claude AI relies on servers to function correctly.
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GitHub
github.com › anthropics › claude-code › issues › 3127
[BUG] API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}} · Issue #3127 · anthropics/claude-code
July 8, 2025 - [BUG] API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}}#3127 ... area:apibugSomething isn't workingSomething isn't workingplatform:macosIssue specifically occurs on macOSIssue specifically occurs on macOS ... When the remaining context left is at exactly 0% and Claude Code has failed to auto-compact in a timely manner, I receive these errors.
Published   Jul 08, 2025
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GitHub
github.com › anthropics › claude-code › issues › 9066
[BUG] API Error: 500 · Issue #9066 · anthropics/claude-code
October 7, 2025 - This means that there’s an internal server error on Claude’s side (a “500” error).
Published   Oct 07, 2025
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YouTube
youtube.com › watch
Claude ai Internal Server Error (Quick fix) - YouTube
If you get an Internal Server Error when trying to access the Claude AI website, it usually means their servers are down. You can confirm this by visiting ht...
Published   May 22, 2025
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GitHub
github.com › anthropics › claude-code › issues › 2355
Once upgrade to Max, all requests returned internal_server_error · Issue #2355 · anthropics/claude-code
May 14, 2025 - [{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n at genericNodeError (node:internal/errors:983:15)\n at wrappedFn (node:internal/errors:537:14)\n at checkExecSyncError (node:child_process:882:11)\n at execSync (node:child_process:954:15)\n at NZ (file:///Users/angela/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:699:3921)\n at file:///Users/angela/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:622:9014\n at Q (file:///Users/a
Published   Jun 20, 2025
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AWS re:Post
repost.aws › questions › QUx9CFOrnsTEaxLzURoYSWAg › previously-working-now-having-issues-with-claude-sonnet-using-tools-including-knowledge-base-search-and-function-calls
Previously working - Now having issues with Claude Sonnet using tools including knowledge base search and function calls | AWS re:Post
June 5, 2024 - Just to let you know, when testing in AU region earlier today, I got three "internal server exception" errors in a row when asking Sonnet to search the knowledge base, after which it reverted to as above, again. Fred and Wilma will have something to say about this! ... Hi, I'm facing this exact issue with my agent. It adds multiple unnecessary <function_calls> opening tags causing the format error. It happens around 70% of the time and older versions of my agent seem to work ok. Anyone know of a fix? ... Claude Sonnet 4.5 on Bedrock incorrectly identifies as Claude 3.5 Sonnet with April 2024 knowledge cutoff
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Anthropic Status
status.anthropic.com
Claude Status
Unresolved incident: Elevated error rates on Opus 4.5.