Arcjet AI security models
A family of custom-trained security models for coding agents
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Arcjet is launching a family of custom AI security models designed for analyzing AI agent activity: Arcjet Himalia 1, a general purpose prompt injection model, live today for every SDK call that uses prompt injection detection, and specialist versions designed for situations that general models handle badly, Arcjet Thebe 1 for coding agents, and Arcjet Carme 1, for autonomous security agents.
PH · launched Nov 9, 2026 · 207 upvotes (top 1%) · 0 views
Niche: ai agent security and monitoring tools · 297 launches, 14 in the last 7 days ▼ -44% · Explore this niche →
Category and tags
- Security
- Model & infra
- Developer
- AI-native
- Commercial product
- Developer Tools
- Artificial Intelligence
- Security
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More like this: all 297 launches in ai agent security and monitoring tools →
Could you build this?
No The product is a set of custom-trained security classification models for prompt injection and agent activity. Its value depends on proprietary training data, labelled attack datasets, and ML research that a vibe-coding builder cannot produce.
What it would actually take: Building an equivalent requires curating large labelled datasets of prompt injection and agent attacks, training and evaluating transformer classifiers, and running red-team adversarial evaluation to keep them current. This needs ML research and security expertise plus ongoing data collection, not just an API wrapper around a general model.
Competitors
Other products that read as similar to this one : 804 launches clear the similarity bar, closest 8 shown.
Attention rank: #3 of 805 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 362 days after the earliest competitor.
- HELIOS — Control Plane for AI Agents · ph · 2026-09-09 · 1 upvotes · similarity 0.53
- HEXBOX · ph · 2026-10-19 · 2 upvotes · similarity 0.47
- Arcten: Building the platform for companies to ship AI agents fast · yc · 2025-11-13 · 43 upvotes · similarity 0.40
- Offensive-Security-AI-Models · github · 2026-09-27 · 511 upvotes · similarity 0.40
- heimdall-pentest · github · 2026-09-14 · 67 upvotes · similarity 0.40
- grim-prompter · github · 2026-10-28 · 330 upvotes · similarity 0.40
- Obol — AI Agent Control Plane · ph · 2026-09-08 · 1 upvotes · similarity 0.39
- Wingbits AI · ph · 2026-05-30 · 265 upvotes · similarity 0.39
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