AI Service Outages Sep–Oct 2026: OpenAI and Claude Incident Stats
110 incidents from seven official status pages, 2026-09-17 to 10-17, broken down by vendor, severity and duration, with retry, fallback and failover tactics.
AI API speed test · IP purity check · Service status monitoring
One click measures real latency from your network to 15 AI model APIs and 9 public frontend CDNs. Free, no sign-up required.
Right now
Every 5 minutes, we probe each vendor's official API endpoint from Cloudflare edge nodes and sync their official status pages.
Probed from Cloudflare edge DFW · updated 4 min ago (10/17 19:35)
Real-world experience from mainland China
The table below summarizes speed test results from visitors in mainland China over the past 7 days, grouped by carrier. More samples mean more accurate results.
| API | All | China Unicom | Mobile |
|---|---|---|---|
| cdnping10 samples | 1221 ms成功 100% | 1388 ms成功 100% | Insufficient samples |
| AGI Plan9 samples | 1869 ms成功 100% | 1966 ms成功 100% | Insufficient samples |
| OpenAI API11 samples | 300 ms成功 9% | 300 ms成功 11% | Insufficient samples |
| Claude API11 samples | 329 ms成功 100% | 342 ms成功 100% | Insufficient samples |
| Gemini API11 samples | 102 ms成功 9% | 102 ms成功 11% | Insufficient samples |
| xAI API11 samples | 269 ms成功 9% | 269 ms成功 11% | Insufficient samples |
| Mistral API11 samples | —成功 0% | —成功 0% | Insufficient samples |
| Groq API11 samples | 292 ms成功 100% | 301 ms成功 100% | Insufficient samples |
| OpenRouter11 samples | 306 ms成功 100% | 527 ms成功 100% | Insufficient samples |
| DeepSeek API11 samples | 120 ms成功 100% | 138 ms成功 100% | Insufficient samples |
| Zhipu BigModel11 samples | 72 ms成功 100% | 190 ms成功 100% | Insufficient samples |
| Kimi Open Platform11 samples | 111 ms成功 100% | 118 ms成功 100% | Insufficient samples |
| Alibaba Cloud Model Studio11 samples | 44 ms成功 100% | 43 ms成功 100% | Insufficient samples |
| Volcengine Ark11 samples | 68 ms成功 100% | 94 ms成功 100% | Insufficient samples |
| SiliconFlow11 samples | 65 ms成功 100% | 65 ms成功 100% | Insufficient samples |
Values are the median round-trip time over a reused connection. “Success” is the share of requests that received a response within 6 seconds.
New · IP & network environment check
Native vs. broadcast, datacenter IP, proxy flags, DNS and WebRTC leaks, split routing rules, browser fingerprint consistency: 12 checks in one go, all run locally.
Blog
110 incidents from seven official status pages, 2026-09-17 to 10-17, broken down by vendor, severity and duration, with retry, fallback and failover tactics.
Why is your AI API slow? Split a call into connect time, gateway round trip, and time to first token (TTFT), with curl commands to measure each segment.
Sites read your timezone, language and fonts, which often clash with your proxy exit IP. See what each mismatch reveals and how to check it with cdnping /ip.
Fix Claude Code connection timeouts and errors layer by layer: service status, local network, exit IP and local config. Includes a curl timing command, an error-code table and cdnping tools.
What to cache, how to rate limit AI APIs, lock your origin to Cloudflare, and fix SSE buffering and 524 errors. Includes Workers code and a launch checklist.
A sourced timeline of the two 2026 Codex usage limit resets, how short-window limits differ from weekly limits, and how to track the next reset with cdnping.
Every Monday morning
Availability, latency changes, official incidents, and measurements across Chinese carriers, automatically compiled into a weekly report.
FAQ
Sends requests straight from your browser to 15 AI model APIs and 9 public frontend CDNs, recording first connection time (DNS, TCP, and TLS included) and round trip time over a reused connection. It measures what these services actually feel like from your network, not theoretical numbers between data centers.
First connection includes DNS resolution and the TLS handshake, showing how long it takes to open a new connection. Round trip is the time for a follow-up request once the connection is established, which is closer to the fixed overhead of each API call. Both need to be low for a good experience.
Some overseas services can't be reached directly from certain networks, or may be blocked by ISPs or firewalls. cdnping records the results as they are, which is valuable information in itself. A failed test doesn't mean the service itself is down; compare it with the edge probe data on the Model API status page to tell.
When "Contribute anonymously to public stats" is checked, we store only the timing and success of each target, plus the country/region and carrier network number (ASN) determined by Cloudflare. We do not store IP addresses or use cookies for tracking. If unchecked, results are shown only in your browser.
Edge probes run every 5 minutes; visitor speed test data is aggregated in real time; official status pages sync every 15 minutes; and the previous week's stability report is generated automatically every Monday.