Image generation getting 502 Bad Gateway

[miguelpeniche]

Image generation is not being done, when we go visit the image link (e.g. https://image.pollinations.ai/prompt/a%20nice%20cat?seed=nnn&width=1280&height=720&nologo=true or just https://image.pollinations.ai it shows:

502 Bad Gateway
Unable to reach the origin service. The service may be down or it may not be responding to traffic from cloudflared

[voodoohop]

✅ Resolved

This was the same root cause as #7865 — the Cloudflare tunnel for image.pollinations.ai was pointing to a deleted tunnel ID, causing 502 Bad Gateway errors.

Fix applied (2026-02-08):

• Created new Cloudflare tunnel (polligw-legacy) routing image.pollinations.ai → localhost:16384 on the gateway server
• Deployed Sana Sprint image generation backend on RTX 5090 GPU (Vast.ai, Germany) with persistent SSH tunnel
• Image generation is now live and serving requests

Both image.pollinations.ai and text.pollinations.ai are fully operational again. For the most reliable experience, we recommend using gen.pollinations.ai.