Vector Eval - IFEval: leaderboard

Vector Institute Inspect Evals run of IFEval, testing strict adherence to verifiable natural-language instructions and formatting constraints.

Metric: Final Accuracy (%). Source: huggingface.co. Saturation forecast: Estimated already saturated. 8 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 1.5 Pro89.82#445
2Claude 3.5 Sonnet89.58#350
3GPT-4o87.8#343
4Llama 3.1 70B Instruct86.05#561
5GPT-4o Mini84.19#599
6Mistral Large 2 (Jul)82.85#484
7Command-R+77.8#891
8Gemini 1.5 Flash76.81#618

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

Interactive version: theaggregate.ai/benchmark?slug=vector-eval-ifeval · How It Works · Data refreshed daily, snapshot 2026-10-20.