Brave Search

Update - We have identified that the outage is related to Sonnet 4.0, Sonnet 4.5, and Opus 4.5.

We’ve conducted extensive testing and evaluation of Sonnet 4.5, working with external experts to ensure it meets our standards for safety, security, and reliability. In the model card for this release, we discuss new safety results in several categories. We're seeing state-of-the-art coding ...

Videos

08:35

YouTube

6 Claude Code 2.0 Features Every Developer Should Know - YouTube

October 10, 2025

21:20

YouTube

GLM-4.6 vs Claude Sonnet 4.5: Better than Claude and 10x cheaper?

October 12, 2025

04:34

YouTube

Claude Coded: Sonnet 4.5, Claude Code 2.0, and more. - YouTube

October 6, 2025

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DrDroid

drdroid.io › status-page-aggregator › anthropic

Anthropic (Claude) Status | Is Anthropic (Claude) Down? | Status Page Aggregator

Incident Statusresolved · Research unavailable for some teams orgs · 12/20/2025, 12:51:17 AM · This incident has been resolved. claude.ai · Claude Code on Windows rendering improperly · 12/19/2025, 8:30:53 PM · This incident has been resolved in Claude Code 2.0.74.

Downdetector

downdetector.com › status › claude-ai

Claude AI down? Current problems and outages | Downdetector

User reports indicate no current problems at Claude AI

reddit.com › r/claudeai › claude status update: fri, 19 dec 2025 04:34:33 +0000

r/ClaudeAI on Reddit: Claude Status Update: Fri, 19 Dec 2025 04:34:33 +0000

3 days ago -

This is an automatic post triggered within 15 minutes of an official Claude system status update.

Incident: Elevated error rates on Sonnet 4.5

Check on progress and whether or not the incident has been resolved yet here : https://status.claude.com/incidents/8d87293jq0mk

Top answer

1 of 5

I’m gonna throw up what do we do and why isn’t it fixed yet

2 of 5

This is taking much longer than usual

OpenRouter

openrouter.ai › anthropic › claude-sonnet-4.5

Claude Sonnet 4.5 - API, Providers, Stats | OpenRouter

Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with improvements across system design, code security, and specification adherence.

Anthropic

anthropic.com › news › claude-3-5-sonnet

Introducing Claude 3.5 Sonnet

Our models are subjected to rigorous testing and have been trained to reduce misuse. Despite Claude 3.5 Sonnet’s leap in intelligence, our red teaming assessments have concluded that Claude 3.5 Sonnet remains at ASL-2.

reddit.com › r/claudeai › claude status update: sun, 14 dec 2025 21:31:42 +0000

r/ClaudeAI on Reddit: Claude Status Update: Sun, 14 Dec 2025 21:31:42 +0000

1 week ago -

This is an automatic post triggered within 15 minutes of an official Claude system status update.

Incident: Elevated errors across many models

Check on progress and whether or not the incident has been resolved yet here : https://status.claude.com/incidents/9g6qpr72ttbr

Top answer

1 of 5

Looks completely dead for the last 10-15 minutes.

2 of 5

I'm getting the Overloaded error message on almost everything.

ClaudeLog

claudelog.com › home › faqs › is claude down

Is Claude Down? Real-Time Status Check & Troubleshooting Guide | ClaudeLog

# Switch to different model claude --model claude-3-5-haiku-20241022 # Or try Sonnet if using Opus claude --model claude-sonnet-4-5-20250929 · Wait it out (2-5 minutes) if: 503 errors are appearing · Multiple users reporting issues on Reddit · Status page shows ongoing incident ·

Find elsewhere

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reddit.com › r/claudeai › claude status update: tue, 18 nov 2025 08:55:37 +0000

r/ClaudeAI on Reddit: Claude Status Update: Tue, 18 Nov 2025 08:55:37 +0000

November 18, 2025 -

This is an automatic post triggered within 15 minutes of an official Claude system status update.

Incident: Elevated error rates to Sonnet 4.5 on Claude Code

Check on progress and whether or not the incident has been resolved yet here : https://status.claude.com/incidents/4bvvh93qjl25

Top answer

1 of 5

They have gathered enough data and decided to save a bit on those bonus API credits expiring today?

2 of 5

Any one get API Error: 500 right now?

reddit.com › r/vibecoding › is claude 4 sonnet down?

r/vibecoding on Reddit: Is Claude 4 Sonnet down?

June 12, 2025 -

Can't get through to Claude 4 Sonnet, just endless retries in Cursor

Top answer

1 of 8

Seems so. Even Opus was hallucinating and generating the same artifact twice after being instructed not to...downdetector indicates a huge spike in incidents in the last hour. So I'll assume so

2 of 8

Replit too. Major outage today. DDos on CF? I'm literally just guessing blind and know 0.

Anthropic

anthropic.com › news › claude-sonnet-4-5

Introducing Claude Sonnet 4.5

On OSWorld, a benchmark that tests AI models on real-world computer tasks, Sonnet 4.5 now leads at 61.4%. Just four months ago, Sonnet 4 held the lead at 42.2%. Our Claude for Chrome extension puts these upgraded capabilities to use.

StatusGator

statusgator.com › services › claude

Claude Status. Check if Claude is down or having an outage. | StatusGator

If you're experiencing a problem now, check the current Claude status or report it. Sign up to see all incidents · Incident name · Research unavailable for some teams orgs · Duration · 45m · Start · Dec 20, 2025 12:53 AM · Severity · Warn · Incident name · Claude Code on Windows rendering improperly · Duration · 1h 45m · Start · Dec 19, 2025 8:33 PM · Severity · Warn · Incident name · Elevated error rates on Sonnet 4.5 ·

GitHub

github.blog › home › changelogs › upcoming deprecation of claude sonnet 3.5

Upcoming deprecation of Claude Sonnet 3.5 - GitHub Changelog

October 9, 2025 - We will deprecate Claude Sonnet 3.5 across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes) on November 6th, 2025. Newer, more capable models will be…

Claude

status.claude.com › history

Claude Status - Incident History

Get incident updates and maintenance status messages in Slack.

reddit.com › r/claudeai › claude status update: sun, 30 nov 2025 18:58:38 +0000

r/ClaudeAI on Reddit: Claude Status Update: Sun, 30 Nov 2025 18:58:38 +0000

3 weeks ago -

This is an automatic post triggered within 15 minutes of an official Claude system status update.

Incident: Elevated errors on Sonnet 4.5

Check on progress and whether or not the incident has been resolved yet here : https://status.claude.com/incidents/55p5hxp0wf3h

Is Claude down at the moment?

Wikipedia

en.wikipedia.org › wiki › Claude_(language_model)

Claude (language model) - Wikipedia

16 hours ago - Claude 3.7 Sonnet was released on February 24, 2025. It is a pioneering hybrid AI reasoning model that allows users to choose between rapid responses and more thoughtful, step-by-step reasoning. This model integrates both capabilities into a single framework, eliminating the need for multiple ...

microsoft.com › home › copilot studio › available today: claude sonnet 4.5 in microsoft copilot studio

Available today: Claude Sonnet 4.5 in Microsoft Copilot Studio | Microsoft Copilot Blog

September 29, 2025 - Claude Sonnet 4.5 will replace Claude Sonnet 4 in Copilot Studio and can be chosen for orchestration. Availability from prompt builder will arrive later in October. If you have already opted into using Anthropic models in your tenant, there’s no action required.

reddit.com › r/claudeai › what happened to 3.5 sonnet

r/ClaudeAI on Reddit: What happened to 3.5 Sonnet

June 29, 2024 -

Today, I used Claude for my regular programming tasks, noticing a marginal decrease in intelligence - as well as the absence of "3 messages till [hour]" after 2 messages. I looked down the prompt I was writing, I see Claude 3 Haiku. I check the paid plan (I don't have it, only the page), there is no mention of 3.5 Sonnet. Only for higher 3 Haiku limits and access to 3 Opus. Does anyone know why Claude dropped 3.5 Sonnet from every tier?

Top answer

1 of 5

Googled "Anthropic Status" and found this on their website: Elevated errors rates for Claude 3.5 Sonnet Think 3.5 Sonnet is just down for now, and they switched to 3 Haiku temporarily while they resolve it.

2 of 5

We had an unplanned outage and we’re close to resolving it. We take reliability seriously, and understand that Claude is an important part of many workflows, and apologize for the disruption. As of now it is mostly resolved. You can check https://status.anthropic.com for up-to-date status. Thanks for bearing with us!