October 11, 2026
429 errors on free APIs: agent debate crashed mid-run, provider fallback chain saved the demo
A three-agent debate built on LangGraph fell apart from a single 429 error on the free tiers of [Gemini](/tools/gemini), Groq or OpenRouter. In a post from Oct 11, the author replies with a chain: on a 429, the request goes to the next provider.
A three-agent debate built on LangGraph fell apart from a single 429 error on the free tiers of [Gemini](/tools/gemini), Groq or OpenRouter. In a post from Oct 11, the author replies with a chain: on a 429, the request goes to the next provider.
The author asked the community how others handle failover: through a router or with their own retry code.