Liquid LFM2.5-2.6B Card - IFStruct: leaderboard

IFStruct is Liquid AI's open benchmark of structured-output compliance: prompts ask for JSON or YAML items with schema requirements stated in varied ways, and a sample passes only if it parses and meets every schema check. LFM2.5-2.6B model card, every model run by Liquid AI with vLLM; percent of passing samples, higher is better.

Metric: Pass Rate (%). Source: huggingface.co. Saturation forecast: Around February 2027. 5 models tracked.

Top models

#ModelScoreOverall rank
1LFM2.5-2.6B85.49#836
2Qwen 3.5 9B78.5#391
3gemma-4-E4B-it76.65#577
4Gemma 4 E2B (IT)64.85#779
5Qwen 3.5 4B36.25#514

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=liquid-lfm2-5-2-6b-card-ifstruct · How It Works · Data refreshed daily, snapshot 2026-11-05.