Which AI model scores highest on IFBench?

Qwen3.8-Flash-Next by Qwen holds the best IFBench result among tracked models, at 81.3% (released Aug 26 2026). Higher scores are better on this benchmark.

What are the top 2 models on IFBench?

1. Qwen3.8-Flash-Next (Qwen) — 81.3%; 2. Qwen3.8-27B (Qwen) — 79.5%.

How many models have a published IFBench score?

2 tracked models have a published IFBench score. Scores are the figures reported by each lab at that model's release, so this page is a record of results over time rather than a re-run leaderboard.

What is the best open model on IFBench?

Qwen3.8-Flash-Next by Qwen is the highest-ranked model with downloadable weights on IFBench, scoring 81.3% at rank 1 overall.

Instruction following

IFBench

Tests whether the AI can follow detailed instructions and satisfy multiple constraints at once. Higher is better.

Rankings

Higher is better

IFBench — frequently asked questions

: Tests whether the AI can follow detailed instructions and satisfy multiple constraints at once. Higher is better.
: Qwen3.8-Flash-Next by Qwen holds the best IFBench result among tracked models, at 81.3% (released Aug 26 2026). Higher scores are better on this benchmark.
: 1. Qwen3.8-Flash-Next (Qwen) — 81.3%; 2. Qwen3.8-27B (Qwen) — 79.5%.
: 2 tracked models have a published IFBench score. Scores are the figures reported by each lab at that model's release, so this page is a record of results over time rather than a re-run leaderboard.
: Qwen3.8-Flash-Next by Qwen is the highest-ranked model with downloadable weights on IFBench, scoring 81.3% at rank 1 overall.