Most Reliable APIs of 2026 — Uptime Rankings for Developers

|Date|Incident|Impact| |--|--|--| |Jan 28|Brief issue with image generation|Minor| |Jan 27|Elevated Codex error rate|Minor| |Jan 26|ChatGPT availability degraded|Minor| |Jan 22|Codex GitHub issues|Minor| |Jan 14|Elevated error rates for ChatGPT|Minor| |Jan 12|Connectors/Apps unselectable|Minor| |Jan 8|**Increased error rate for image prompts**|**Major**| |Jan 8|High error rate for DALL-E|Minor| … That's roughly one incident every 2-3 days. Most are minor and resolve within an hour, but the January 8 image prompts issue was classified as **major** — affecting both ChatGPT and the API for image-based prompts. The pattern is clear: OpenAI is shipping incredibly fast (new models, Codex, image generation, connectors) and reliability is paying the price. This is the classic speed-vs-stability tradeoff, and right now speed is winning.