Is Parameter profitable or does it have disclosed funding in 2026?

No. As of 2026-07-25, Parameter has no publicly confirmed funding amount, valuation, or revenue figures. It is listed only as part of Y Combinator's Winter 2026 Security batch, with zero independent traction data reported anywhere.

Could AI replace Parameter's own red-teaming service?

Ironically yes. Parameter's core product is itself an AI agent replacing human penetration testers. Rivals like Fabraix (78% AgentHarm score, 2026-07-20) and incumbents like Cisco AI Defense already offer similar AI-driven continuous testing, risking commoditization of Parameter's exact wedge.

Who is Parameter's biggest competitor?

Cisco's AI Defense (from its August 2024 Robust Intelligence acquisition) and Palo Alto Networks' Prisma AIRS, which shipped new continuous AI red-teaming features monthly through 2026, both bundle the same capability Parameter sells standalone, undercutting its market entry.

Parameter is a private company backed by Y Combinator, part of the W26 batch under YC's Security category as of 2026-07-25. No other investors, parent company, or ownership changes have been publicly reported.

Does Parameter have any named customers?

No. As of 2026-07-25, no independent source lists any named customer, revenue, or ARR for Parameter. Its own site claims its methodology found vulnerabilities at unicorns, but this is unverified vendor marketing with no third-party corroboration.

What differentiates Parameter from Fabraix or Casco?

Nothing publicly documented. Fabraix claims a 10,000+ entry proprietary jailbreak library and a 78% AgentHarm benchmark score (2026-07-20), while Casco claims 100+ customers including Gusto and CrewAI plus SOC2/ISO27001 certs (2026-07-25). Parameter discloses none of these.

YC Winter 2026 · United States

Parameter

AI agents that continuously red-team other AI systems for security holes.

Losing its protection

Assessed 26 July 2026 · Evidence as of 26 July 2026

The structural protection is eroding.

On the recordSince 26 July 2026 · Checkable from Q1 2027 · Every call on the record Checkpoint: Parameter's Demo Day, where funding, customers, and any benchmark get disclosed

The call

Parameter has no named customers, no benchmark, and no compliance cert, while funded rivals and three major platforms already ship the same feature.

Parameter helps companies test their AI systems to find problems before they go live, similar to how a quality-control team catches defects. The problem is that Cisco, Palo Alto Networks, and Red Hat have already built competing products and are adding new features every month, while other startups like Neo and Beacon have more funding and paying customers to show for it. Parameter has not published any evidence it works better than rivals, holds exclusive data, or has real customers yet. The biggest threat is that Palo Alto or Cisco could bundle this testing into their standard security packages within six months, making the whole category feel like table stakes rather than something worth paying extra for.

Why

AI pressure: Open-source red-teaming methods (Anthropic's published research, Red Hat's Garak). Frontier labs are publishing red-teaming methodology openly, turning Parameter's core skill into something anyone can copy for free. Could AI do the core job? Yes, likely.

Bigger players: Cisco AI Defense, Palo Alto Prisma AIRS, Red Hat AI. All three platforms already ship continuous AI red-teaming as a bundled feature, shipping new capabilities monthly through 2026. Could a giant copy it? Yes, easily.

What protects it. Only that the category is still forming, so no vendor has locked in the enterprise buyer yet.

What would change this call

Parameter's Demo Day disclosure of funding, customer count, or benchmark. Shows whether Parameter has any real traction versus peers like Casco and Fabraix.
Palo Alto or Cisco ships general-purpose continuous red-teaming as a bundled standard feature. Would close the pure-play wedge Parameter is trying to occupy.
Casco or Fabraix announces a new funding round or additional named enterprise customers. Confirms better-funded peers are pulling further ahead in traction and moat.

Key numbers

Fabraix publishes 78% attack success rate on AgentHarm benchmark (2026-07-20)
Palo Alto shipped new AI red-teaming features monthly through 2026 (2026-05-11)
Red Hat acquired Chatterbox Labs for AI red-teaming, Dec 2025 (2026-06-02)

Named risks

No disclosed funding, customers, or benchmarks as of 2026-07-25 versus funded, sourced peers. Severity: high
Incumbents Cisco and Palo Alto bundling continuous red-teaming as a free platform feature. Severity: high
Well-capitalized new entrants (Neo $100M, Beacon $13M) crowding the same wedge in mid-2026. Severity: medium
No compliance certifications disclosed versus Casco's marketed SOC2/ISO27001. Severity: medium
Core AI red-teaming methodology being published openly by frontier labs, eroding proprietary value. Severity: medium

Rivals, as read in July 2026

Rival	Direction	Evidence
Cisco (AI Defense)	gaining on	Folded Robust Intelligence into bundled continuous red-teaming since Aug 2024
Palo Alto Networks (Prisma AIRS)	gaining on	Shipped new AI red-teaming features monthly through 2026 (WebSocket support, May 2026)
Red Hat	gaining on	Integrated open-source Garak plus Chatterbox Labs acquisition, Dec 2025
Fabraix	losing to	Published 78% AgentHarm benchmark and 10,000+ jailbreak library, 2026-07-20
Casco	losing to	Claims 100+ customers and SOC2/ISO27001 certs as of 2026-07-25
Neo Security	losing to	Launched with $100M funding for agentic security, 2026-07-20

Questions people ask

Is Parameter profitable or does it have disclosed funding in 2026?: No. As of 2026-07-25, Parameter has no publicly confirmed funding amount, valuation, or revenue figures. It is listed only as part of Y Combinator's Winter 2026 Security batch, with zero independent traction data reported anywhere.
Could AI replace Parameter's own red-teaming service?: Ironically yes. Parameter's core product is itself an AI agent replacing human penetration testers. Rivals like Fabraix (78% AgentHarm score, 2026-07-20) and incumbents like Cisco AI Defense already offer similar AI-driven continuous testing, risking commoditization of Parameter's exact wedge.
Who is Parameter's biggest competitor?: Cisco's AI Defense (from its August 2024 Robust Intelligence acquisition) and Palo Alto Networks' Prisma AIRS, which shipped new continuous AI red-teaming features monthly through 2026, both bundle the same capability Parameter sells standalone, undercutting its market entry.
Who owns Parameter?: Parameter is a private company backed by Y Combinator, part of the W26 batch under YC's Security category as of 2026-07-25. No other investors, parent company, or ownership changes have been publicly reported.
Does Parameter have any named customers?: No. As of 2026-07-25, no independent source lists any named customer, revenue, or ARR for Parameter. Its own site claims its methodology found vulnerabilities at unicorns, but this is unverified vendor marketing with no third-party corroboration.
What differentiates Parameter from Fabraix or Casco?: Nothing publicly documented. Fabraix claims a 10,000+ entry proprietary jailbreak library and a 78% AgentHarm benchmark score (2026-07-20), while Casco claims 100+ customers including Gusto and CrewAI plus SOC2/ISO27001 certs (2026-07-25). Parameter discloses none of these.

Timeline

2026-07-25Parameter listed under YC W26 Security batch with zero disclosed funding or customers
2026-07-20Neo Security launches with $100M from a16z, Bessemer, Craft Ventures for agentic security
2026-07-20Fabraix launches on YC claiming 78% AgentHarm attack success and 10,000+ jailbreak library
2026-07-19Zscaler's Splx acquisition combines automated red-teaming with runtime guardrails
2026-07-17Beacon Security raises $13M seed, claims 300% H1 2026 ARR growth
2026-05-11Palo Alto Prisma AIRS ships new AI red-teaming features including WebSocket support
2026-03Anthropic publishes open Abstractive Red-Teaming methodology research
2026-01-16Cekura launches on YC for red-teaming conversational AI in regulated sectors
2025-12Red Hat acquires Chatterbox Labs, integrates with open-source Garak
2024-08Cisco acquires Robust Intelligence, folds into AI Defense continuous red-teaming

Revision history

26 July 2026

First assessed. Losing its protection. The text above is fixed as of this date and is not edited afterwards.

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