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AI security firm Gray Swan raises $40M at $200M valuation

By PulseAugur Editorial · [1 sources] ·

AI startup Gray Swan has secured $40 million in Series A funding, valuing the company at $200 million. The startup employs approximately 15,000 security professionals who act as hackers to pressure-test AI models from major labs like OpenAI and Anthropic. This data is used to train Gray Swan's AI agents, Shade and Cygnal, which identify and mitigate vulnerabilities in AI systems, preventing the generation of harmful content or unauthorized tool access. The company's founders, professors Matt Fredrikson and Zico Kolter, have a history of AI safety research, including discovering a significant jailbreaking technique. AI

IMPACT This funding and its focus on AI safety testing could accelerate the development and deployment of more secure AI models across the industry.

RANK_REASON Significant funding round for an AI safety company with major lab customers. [lever_c_demoted from significant: ic=1 ai=0.7]

Read on Forbes — Innovation →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

AI security firm Gray Swan raises $40M at $200M valuation

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Signal score
0 / 100
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Research
Significant funding round for an AI safety company with major lab customers. [lever_c_demoted from significant: ic=1 ai=0.7]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
funding, safety, product
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AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
121 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

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COVERAGE [1]

  1. Forbes — Innovation TIER_1 English(EN) · Rashi Shrivastava, Forbes Staff ·

    This AI Startup’s Army Of 15,000 Hackers Pressure Test Claude, GPT-5 And Gemini

    Gray Swan works with every major frontier AI lab. Now it’s raised $40 million as it expands to sell security tools to enterprises building AI agents.

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