OpenRouter Launches Model Fusion: Run Multiple Models Side-by-Side and Synthesize Best Answer — Every Deep Research Agent Preferred Fused Output
OpenRouter·medium signal
OpenRouter launched Model Fusion on March 31 as a public experiment at openrouter.ai/labs/fusion. The feature queries multiple AI models simultaneously, analyzes each output, and synthesizes the strongest elements into a single response. In OpenRouter's testing, every Deep Research agent preferred the fused result to its own output. No paid subscription required, though per-query cost is higher due to multiple model invocations plus synthesis step.