ARC-C

Paper

Progress Over Time

Interactive timeline showing model performance evolution on ARC-C

State-of-the-art frontier
Open
Proprietary

ARC-C Leaderboard

34 models
ContextCostLicense
11.0T1.0M$0.43 / $0.87
2405B
3
Anthropic
Anthropic
4
Amazon
Amazon
470B
6
7398B
8
Amazon
Amazon
924B
1060B
11
12
1352B
144B
15
Microsoft
Microsoft
4B
168B
173B
188B
1927B
20104B
21
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
32B
22
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
33B
2370B
24
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
72B
259B
26
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
15B
27
Nous Research
Nous Research
70B
282B
288B
30
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
7B
312B
318B
338B
3421B
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About this benchmark

What is ARC-C?

The AI2 Reasoning Challenge (ARC) Challenge Set is a multiple-choice question-answering benchmark containing grade-school level science questions that require advanced reasoning capabilities. ARC-C specifically contains questions that were answered incorrectly by both retrieval-based and word co-occurrence algorithms, making it a particularly challenging subset designed to test commonsense reasoning abilities in AI systems.

ARC-C is a text benchmark evaluating models on reasoning and general tasks. LLM Stats tracks 34 models on this benchmark, scored on a 0–1 scale. The current average is 0.8, with the leader at 1.0.

Compare leaders on the best AI for reasoning and best AI for general leaderboards.

Current leaders

MiMo-V2.5-Pro from Xiaomi currently leads the ARC-C leaderboard with a score of 0.972 across 34 evaluated AI models.

1MiMo-V2.5-ProXiaomi97.2%
3Claude 3 OpusAnthropic96.4%

Source paper

Title
Think you have Solved Question Answering? Try ARC, the AI2 Reasoning Challenge
Authors
Peter Clark, Isaac Cowhey, Oren Etzioni, Tushar Khot, and 3 others
Published
Abstract

We present a new question set, text corpus, and baselines assembled to encourage AI research in advanced question answering. Together, these constitute the AI2 Reasoning Challenge (ARC), which requires far more powerful knowledge and reasoning than previous challenges such as SQuAD or SNLI. The ARC question set is partitioned into a Challenge Set and an Easy Set, where the Challenge Set contains only questions answered incorrectly by both a retrieval-based algorithm and a word co-occurence algorithm. The dataset contains only natural, grade-school science questions (authored for human tests), and is the largest public-domain set of this kind (7,787 questions). We test several baselines on the Challenge Set, including leading neural models from the SQuAD and SNLI tasks, and find that none are able to significantly outperform a random baseline, reflecting the difficult nature of this task. We are also releasing the ARC Corpus, a corpus of 14M science sentences relevant to the task, and implementations of the three neural baseline models tested. Can your model perform better? We pose ARC as a challenge to the community.

FAQ

Common questions about the ARC-C benchmark and leaderboard.

What is the ARC-C benchmark?

The AI2 Reasoning Challenge (ARC) Challenge Set is a multiple-choice question-answering benchmark containing grade-school level science questions that require advanced reasoning capabilities. ARC-C specifically contains questions that were answered incorrectly by both retrieval-based and word co-occurrence algorithms, making it a particularly challenging subset designed to test commonsense reasoning abilities in AI systems.

What is the ARC-C leaderboard?

The ARC-C leaderboard ranks 34 AI models based on their performance on this benchmark. Currently, MiMo-V2.5-Pro by Xiaomi leads with a score of 0.972. The average score across all models is 0.768.

What is the highest ARC-C score?

The highest ARC-C score is 0.972, achieved by MiMo-V2.5-Pro from Xiaomi.

How many models are evaluated on ARC-C?

34 models have been evaluated on the ARC-C benchmark, with 0 verified results and 34 self-reported results.

Where can I find the ARC-C paper?

The ARC-C paper is available at https://arxiv.org/abs/1803.05457. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does ARC-C cover?

ARC-C is categorized under reasoning and general. The benchmark evaluates text models.

What is the best open-source model on ARC-C?

MiMo-V2.5-Pro by Xiaomi is the top-ranked open-source model on ARC-C, with a score of 0.972 (rank #1).

Which model offers the best value on ARC-C?

Among models scoring within 10% of the leader, MiMo-V2.5-Pro from Xiaomi is the cheapest, at $0.43 per million input tokens with a score of 0.972.

How recent are the ARC-C leaderboard results?

The ARC-C leaderboard was last updated in July 2026 and currently includes 34 evaluated models.