This report compares the reliability of ChatGPT and DeepMind based on independent monitoring during the week of 20 April 2026. ChatGPT recorded 0% uptime with no successful monitoring data, while DeepMind achieved 99.58% uptime with an average response time of 218ms.
- DeepMind delivered 99.58% uptime; ChatGPT returned 0% uptime during the monitoring period
- DeepMind experienced 1 incident totaling 30 minutes of downtime
- DeepMind's average response time was 218ms
- All monitoring data collected by Uptrue's independent infrastructure
Uptime This Week
DeepMind maintained 99.58% uptime throughout the week, translating to approximately 60 minutes of unavailability across seven days. ChatGPT's 0% uptime indicates that Uptrue's monitoring endpoints could not establish successful connections during this period, suggesting either sustained accessibility issues or network-level blocking of monitoring probes.
Response Time
DeepMind responded to requests in an average of 218ms. ChatGPT response time data was unavailable due to the monitoring failures that produced 0% uptime.
Incidents & Downtime
DeepMind logged 1 discrete incident resulting in 30 minutes of total downtime. ChatGPT's incident count of 0 reflects the absence of recoverable service windows during monitoring rather than superior reliability.
Which Should You Choose?
DeepMind is the clear choice for reliability during this period, with nearly 99.6% uptime and sub-250ms response times. However, ChatGPT's monitoring results warrant investigation—the 0% uptime may reflect monitoring access issues rather than user-facing availability, and should not be treated as definitive without additional validation.
All uptime, response time, and incident data is collected by Uptrue's independent monitoring infrastructure. HTTP checks run every 5 minutes. An incident is recorded only after 2+ consecutive failed checks. Uptrue is not affiliated with any monitored service. For corrections: reports@uptrue.io