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ADL Study Finds Anti-Jewish and Anti-Israel Bias in Major AI Language Models

The Anti-Defamation League released a study finding that four major AI language models—GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, and Llama 3-8B—display measurable bias against Jewish people and Israel. The study evaluated the models' responses to 86 statements across categories including antisemitic tropes, conspiracy theories, and Israel-related topics, with Llama 3-8B performing worst and even invoking replacement theory.

25 March 2025 · OpenAI · Discrimination and fairness
25 March 2025
AII-1001-864096 sources ↓
Quick facts
Category
Discrimination and fairness
Country
United States
Source
Algemeiner.com
Date
25 March 2025
Drafted by
Raidu Incident Detection

What happened

The Anti-Defamation League (ADL) conducted a study evaluating GPT-4o (OpenAI), Claude 3.5 Sonnet (Anthropic), Gemini 1.5 Pro (Google), and Llama 3-8B (Meta) for bias. The study asked the LLMs to agree with a series of 86 statements across six categories: bias against Jews, bias against Israel, the war in Gaza/Israel and Hamas, Jewish and Israeli conspiracy theories and tropes, Holocaust conspiracy theories and tropes, and non-Jewish conspiracy theories and tropes.

The models were evaluated with 8,600 test iterations producing 34,000 total responses. The ADL varied prompts by including or excluding user names to test whether the LLMs' responses varied based on perceived user identity.

Reported impact

All four LLMs displayed patterns of anti-Jewish and anti-Israel bias according to the study. Llama 3-8B scored worst and was the only model tested to invoke the great replacement theory, an antisemitic and xenophobic conspiracy theory.

GPT-4o and Claude provided consistent anti-Israel answers when asked about the Israel-Hamas War without providing factual support. The models refused to answer questions about Israel at higher rates than other historical and social topics.

Index analysis

The ADL called the findings an 'urgent call' for AI developers, noting that LLMs are already embedded in classrooms, workplaces, and social media moderation decisions. ADL CEO Jonathan A. Greenblatt stated that when LLMs amplify misinformation or refuse to acknowledge certain truths, it can distort public discourse and contribute to antisemitism.

Governance controls

Daniel Kelley, interim head of the ADL Center for Technology and Society, said the findings show AI models are not adequately trained to prevent the spread of antisemitism and anti-Israel misinformation.

Classification

Category
Discrimination and fairness
Industry
Media, social platforms and marketing
Country
United States
Harm status
Potential harm
Intent
Unintentional
Timing
Post-deployment
Harm types
Human or fundamental rights, Reputational
Harmed
General public
Failure modes
Biased model
Consequences
None recorded
AI systems
GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, Llama 3-8B

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

Algemeiner.com
AI Language Models Promote Antisemitism and Anti-Israel Bias, ADL Warns
25 March 2025
Fox Business
ADL issues 'urgent call' alleging anti-Israel bias in 4 AI large language models
25 March 2025
israelhayom.com
ADL report uncovers bias in AI models
25 March 2025
Jewish News
Leading AI tools show antisemitic and anti-Israel bias, ADL finds
25 March 2025
The Jerusalem Post | JPost.com
ADL flags bias in leading AI tools on Jews and Israel
25 March 2025
timesofisrael.com
Study: ChatGPT, Meta's Llama and all other top AI models show anti-Jewish, anti-Israel bias
25 March 2025