CLAMBER - Few-shot CoT - Identification Accuracy: leaderboard

CLAMBER (ACL 2024) evaluates detecting ambiguous information needs and generating clarifying questions. Few-shot CoT - Identification Accuracy under the named prompting protocol. Metric: Accuracy (%). Helpfulness is human-rated; BERTScore measures similarity to reference questions and is not task success. Source: arXiv 2405.12063v2, tables 3 and 7. Chat and instruct models remain distinct; ChatGPT here is GPT-3.5-Turbo-16k.

Metric: Accuracy (%). Source: arxiv.org. Saturation forecast: Estimated already saturated. 5 models tracked.

Top models

#ModelScoreOverall rank
1Llama 2 70B Chat54.93#1275
2vicuna-13B53.5#1450
3Llama 2 13B Chat52.19#1414

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

Interactive version: theaggregate.ai/benchmark?slug=clamber-few-shot-cot-identification-accuracy · How It Works · Data refreshed daily, snapshot 2026-11-05.