Shieldstral
Define safety at runtime for text and images
Shieldstral launched on August 6, 2026 with 104 votes, #354 of 23,274 launches that month and more than 95% of that year's launches.
What it does
Shieldstral is a 3B open-weight multimodal guardrail from Mistral. Define safety policies in natural language at inference time. It evaluates text, images, or both from a single token output, running locally on a single 16GB GPU.
Shieldstral introduces a 3B open-weights multimodal safety classifier that outperforms models up to 7x its size.
Agentic Search. More accurate and efficient results from your AI systems. In-region inference, open models, and new European infrastructure for sovereign AI. Agentic Search. More accurate and efficient results from your AI systems. In-region inference, open models, and new European infrastructure for sovereign AI. Shieldstral introduces a 3B open-weights multimodal safety classifier that outperforms models up to 7x its size by framing content moderation as a policy-adaptive question-answering task. Unlike traditional guardrail models, it accepts plain-language policies at inference time, unifying text and image safety evaluation without retraining. Released under Apache 2.0, it delivers…from mistral.ai
Does a similar job
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gpt-oss-safeguardOct 2025 · openai.com · ▲119Open safety reasoning models with custom safety policies
ElevenAgents Guardrails 2.0Apr 2026 · elevenlabs.io · ▲132Configurable safety control for enterprise agent deployment.
GitGuardian Shield2020 · github.com · ▲80Open sourced application to detect security vulnerabilities.
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