Three weeks before a major deployment, we found a prompt sequence that made the model output working exploit code. It wasn't a single adversarial prompt — it was four turns of seemingly innocent conversation about "cybersecurity education" that gradually steered the model past its safety training. No automated safety benchmark had flagged it.
That's why red-teaming exists. And that's why it can't be automated away.
The Gap Between Benchmarks and Reality
By the Numbers
Automated safety benchmarks test known attack patterns. They're necessary but insufficient. Red-teaming finds the unknown failures — the novel jailbreaks, the unexpected capability combinations, the edge cases that emerge when features interact in ways nobody anticipated.
Every major model release in the past two years has been preceded by structured adversarial evaluation. It's no longer optional — it's a prerequisite for responsible deployment.
Our Framework: Four Phases
Phase 1: Scope & Threat Model
Before anyone touches the model, we define:
- What capability are we testing? Specific domains, tool access, deployment context
- Who is the adversary? Casual users trying tricks, determined researchers, domain experts with harmful intent
- Severity classification: Critical (must fix before launch) / High (fix within 2 weeks) / Medium (next release) / Low (monitor)
A red-team without clear scope produces a pile of miscellaneous findings. With scope, it produces a prioritized remediation plan.
Phase 2: Category-Based Attack Surfaces
We organize testing by safety category:
Harmful Content Generation
- Direct elicitation (increasingly sophisticated prompts)
- Multi-turn escalation (gradually building context toward harmful output)
- Instruction embedding (harmful intent hidden in benign-looking code or text)
Information Hazards
- Weapons/CBRN knowledge extraction
- Privacy violations and training data leakage
- Dual-use knowledge boundaries
Systemic Risks
- Manipulation and deceptive behavior
- Sycophancy under adversarial pressure
- Capability overhang (hidden capabilities in specific contexts)
Jailbreaks
- Prompt injection and role-play escapes
- Context window manipulation
- System prompt extraction
Phase 3: Structured Execution
Each red-teamer follows the framework but brings creative adversarial thinking:
- Baseline probing: Test known attack vectors to establish the model's current defenses
- Escalation: Progressively increase sophistication within each category
- Cross-pollination: Techniques that work in one category inform attacks in others
- Documentation: Every attempt logged — exact prompts, responses, severity assessment, reasoning
Key Insight
Phase 4: Reporting & Remediation
Each finding is delivered as:
- Reproduction steps (exact prompts, can be copy-pasted)
- Severity + confidence (one-shot vs. required 10+ attempts)
- Recommended mitigation (training data additions, system prompt changes, classifier deployment)
- Verification criteria (how to confirm the fix works)
What We Look For in Red-Teamers
Not everyone can do this work effectively. The best red-teamers combine:
- Security background: They understand attack surfaces intuitively
- Domain expertise: They know what actually dangerous output looks like (not just "sounds bad")
- Creativity: Novel attacks come from unexpected angles
- Discipline: Methodical documentation even when finding exciting vulnerabilities
We maintain a team of 15 specialized red-teamers — former pentesters, security researchers, and domain experts who've pivoted to AI safety. This connects to our broader work on agentic evaluation — red-teaming is evaluation with an adversarial lens.
Practical Guidance
- Team size: 8-15 people for a thorough engagement. Fewer misses coverage; more creates coordination overhead.
- Duration: 2-4 weeks for a comprehensive evaluation. 1 week for a targeted assessment of specific capabilities.
- Iteration: Findings should feed back into training or system prompts. Then re-test. We've seen "fixed" vulnerabilities reappear with minor prompt variations.
- Independence: Red-teamers should never be the same people who built the model. Fresh perspective is non-negotiable.
What You Get
A completed engagement produces:
- Prioritized vulnerability dataset with reproduction steps
- Confidence assessment for each attack category
- Training data for hardening (the successful attacks become negative examples)
- Documentation for safety reviews and compliance
It's not a guarantee of safety — nothing is. But it's the difference between discovering vulnerabilities in a controlled setting vs. having users find them in production.
Figure: Key concept visualization