AbstentionBench - answer unknown - CoCoNot/Unsupported - F1: leaderboard

AbstentionBench evaluates whether a model appropriately declines unanswerable or underspecified questions. This slice reports answer unknown - CoCoNot/Unsupported - F1 as Abstention F1 (%); values converted from 0-1 to percent. Precision and recall must be read together: always abstaining is not necessarily useful. Scenario/dataset pairs and SFT/DPO/RL checkpoints remain separate; no synthetic overall average. Source: facebookresearch/AbstentionBench analysis/abstention_performance.csv.

Metric: Abstention F1 (%). Source: github.com. Saturation forecast: Estimated already saturated. 20 models tracked.

Top models

#ModelScoreOverall rank
1Llama-3.1-Tulu-3-70B-DPO97.46#732
2Llama-3.1-Tulu-3-70B96.23#499
3Llama-3.1-Tulu-3-8B-SFT95.87#977
4Gemini 1.5 Pro95.76#454
5Qwen 2.5 32B Instruct95.69#509
6Llama-3.1-Tulu-3-8B-DPO95.69#992
7GPT-4o95.24#357
8Llama-3.1-Tulu-3-8B94.83#848
9Llama 3.1 405B Instruct92.51#470
10O192.38#190
11Llama 3.1 8B Instruct92.04#1017
12Llama 3.3 70B Instruct90.75#541
13Llama 3.1 70B Instruct90.58#567
14Mistral 7B Instruct (v0.3)89.91#1255
15OLMo-7B-0724-Instruct-hf80.2#1441

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

Interactive version: theaggregate.ai/benchmark?slug=abstentionbench-answer-unknown-coconot-unsupported-f1 · How It Works · Data refreshed daily, snapshot 2026-11-05.