SafetySecurity Updated 2026

Red Teaming

Definition

Deliberately probing a model with adversarial inputs to find harmful, unsafe or policy-violating behaviour before deployment.

Red teaming stress-tests a model by trying to make it fail — eliciting unsafe, biased or disallowed outputs so they can be fixed before release. Perez et al. (2022) showed this can be partly automated, using one language model to generate adversarial test cases against another and surfacing tens of thousands of failure cases at scale.

Red teaming complements jailbreak and prompt-injection research and is now a standard part of responsible model release.

References

Primary, peer-reviewed and archival sources for this definition.

Red Teaming Language Models with Language Models
Perez, E., Huang, S., Song, F., Cai, T., Ring, R., Aslanides, J., Glaese, A., McAleese, N., & Irving, G. (2022). Proceedings of EMNLP 2022.

Dictionary & encyclopedic entries

Cite this entry

MultipleChat. "Red Teaming." MultipleChat AI & LLM Glossary, 2026. https://multiple.chat/ai-glossary/red-teaming

Related terms

Jailbreak
A prompt crafted to bypass a model's safety training and make it produce content it is meant to refuse.
Prompt Injection
An attack that smuggles malicious instructions into a model's input — directly or via retrieved content — to…
Alignment
The work of making an AI system's behaviour match human intent and values — why a model follows instructions…
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