Deep Research API - Interaction stuck "in_progress" for some domains

[SHUN_TAGAMI]

@philschmid

Having the same problem, check also below plz.

Deep Research API (deep-research-pro-preview-12-2025) — jobs stay in_progress indefinitely with complex prompts

I’m using the Deep Research API (deep-research-pro-preview-12-2025) via the @google/genai JS SDK (Interactions API) in a Next.js application. The problem: When I submit a detailed research prompt (approximately 2,000–3,000 characters), the interaction stays in in_progress status and never transitions to completed. My application polls interactions.get() every 10–30 seconds, but the status never changes, eventually hitting our 60-minute timeout. What I’ve verified: A simple prompt like “What…