# IFBench — AI model rankings

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

2 tracked models have a published IFBench score. Higher is better. Scores come from published lab reports and benchmark sources; recorded sources appear beside the scores.

## Ranking

| Rank | Model | Developer | Score | Source | Released |
| --- | --- | --- | --- | --- | --- |
| 1 | Qwen3.8-Flash-Next | Qwen | 81.3% | Lab | Aug 26 2026 |
| 2 | Qwen3.8-27B | Qwen | 79.5% | Lab | Aug 14 2026 |


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Canonical page: https://aireleasetracker.com/benchmark/ifbench
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.