# Major AI Outage: Grok Is Down. ChatGPT, Claude, Gemini Back Up > Source: > Published: 2026-09-03 19:15:43+00:00 **UPDATE 3:15 p.m. ET: **Claude appears to be back now. "All systems operational," the status page [says](https://status.claude.com/). On Grok, however, we are still getting "Grok was unable to reply" errors. **UPDATE 1:25 p.m. ET:** OpenAI's status page now says it's fully operational. "We’re not aware of any issues affecting our systems." Reports on Downdetector have also dropped, and the chatbot is responding to queries. Gemini also appears to be up and running. Grok, however, is currently displaying a warning that says it's "experiencing issues," and warns that "Some features may be slow or unavailable." It's telling people to check [status.x.ai](https://status.x.ai/) for updates, but the page doesn't currently show any service disruptions. On Claude, we're getting "This response didn't load" to any queries. **Original Story:** If you’re trying to use AI tools today, you are likely experiencing problems. A widespread outage affecting thousands of users is ongoing across OpenAI’s ChatGPT, Anthropic’s Claude, Google’s Gemini, X's Grok, and other AI platforms. As shown on [Downdetector](https://downdetector.com/status/openai/), outages affecting OpenAI services began around 10:30 a.m. ET, ramping up quickly over the past hour. The outage appears to be widespread, with the peak number of reports exceeding 36,000. The OpenAI [status page](https://status.openai.com/) says it has applied a fix and is “monitoring the recovery” after 24 minutes of downtime across ChatGPT and Codex. One PCMag reporter who was experiencing issues says their service returned soon after the fix, but is now working slowly. OpenAI has yet to say what caused the outage. Google Gemini saw a similar spike in reports around the same time, but Google has yet to acknowledge an outage. Another PCMag reporter found that any prompts entered into Gemini returned an error, although reports on Downdetector are significantly smaller, suggesting it isn't impacting all users. Issues with Anthropic's Claude began earlier in the day with a small spike in reports at 8:30 a.m. ET before surging an hour later with more consistent issues. The first problem directly affected Claude Sonnet 5, while a second wave hit many more models, including Mythos/Fable 5.1 and Opus 5. Anthropic [says](https://status.claude.com/) it has issued a fix for its issues, which is now rolling out to users. It says the currently affected models are restricted to Opus 5 and Opus 4.8, with recoveries happening across Fable models and Opus 4.6. X’s AI platform, Grok, also appears to be down, alongside the smaller AI agent service Cursor, with both seeing spikes on Downdetector. Meanwhile, despite [reports](https://downdetector.com/status/cloudflare/) on Downdetector, Cloudflare says it is not experiencing downtime. “Cloudflare is not experiencing any significant service disruptions at this time. Our services are operating normally, and any reporting that deviates from this is incorrect.” This is a remarkable outage to hit all of these services at once, especially since it doesn't seem to be affecting other businesses outside the AI space. We'll update this article with more information as we hear it. *Disclosure: Ziff Davis, PCMag's parent company, filed a lawsuit against OpenAI in April 2025, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.*