opt-350m: benchmark results

Meta OPT is an English-dominant decoder-only pretrained language model using causal language modeling, a GPT-2 byte-level tokenizer and 2,048-token training sequences. Its training corpus contains 180B tokens; this base release remains separate from OPT-IML instruction-tuned models. Provider: Meta. Released 2022-05-03. Access: Open.

Aggregate Rating 1119 ± 18, rank #10519 of 10916 rated models, from 73 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
MMLU-by-task - High School Statistics47.22Accuracy (%)83.3
MMLU-by-task - High School Physics33.11Accuracy (%)70.8
MMLU-by-task - High School Mathematics27.78Accuracy (%)58.6
MMLU-by-task - College Chemistry35Accuracy (%)56.4
MMLU-by-task - Professional Medicine44.85Accuracy (%)45.7
MMLU-by-task - Moral Scenarios24.69Accuracy (%)38.9
MMLU-by-task - Security Studies39.59Accuracy (%)37.5
MMLU-by-task - High School Chemistry29.06Accuracy (%)36.1
MMLU-by-task - College Physics22.55Accuracy (%)34.3
MMLU-by-task - High School Geography35.86Accuracy (%)33.8
MMLU-by-task - Electrical Engineering29.66Accuracy (%)31.4
MMLU-by-task - International Law37.19Accuracy (%)30.6

Interactive version: theaggregate.ai/model?slug=opt-350m · How It Works · Data refreshed daily, snapshot 2026-11-08.