Blog Post··5 min read
Instruction-Following Benchmarks: IFEval Is Saturated, IFBench Exposes What's Left
IFEval's top-10 spread is 2.9pp — six of the top 12 spots go to Qwen3.5 variants. IFBench then shows a 29pp gap between reasoning models and standard instruction-tuned ones on constraints none of them trained against.