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What is Shieldstral?

Shieldstral is a cutting-edge multimodal safety classifier featuring a 3 billion parameter open-weight architecture, capable of evaluating text, images, and mixed text-image content based on policies that are defined dynamically during the inference process. Instead of following a rigid set of harm categories, it treats moderation as a binary question-and-answer dialogue: users provide a contextual instruction detailing the criteria and level of strictness for evaluation, pose a yes-or-no safety question, and submit the content for review. By interpreting the “yes” and “no” logits, it produces a continuous and calibrated safety score, which allows applications to prioritize results based on confidence rather than relying solely on a singular categorical label. This innovative design seamlessly combines prompt classification, response moderation, refusal detection, toxicity assessment, and multimodal safety evaluation into one cohesive interface, giving teams the flexibility to adjust policies without requiring re-training of the model. The adaptability of Shieldstral enables it to effectively analyze various inputs including prompts, responses, image content, and combinations of images with text, thereby serving as a powerful tool for comprehensive safety assessments. Consequently, Shieldstral stands as a noteworthy leap forward in the realm of content moderation technologies, reinforcing safety measures across digital platforms.

What is Perplexity Decider?

Perplexity Decider represents an advanced decision-making model featuring 27 billion parameters, evolved from Qwen3.8-27B, and is designed specifically for structured classification and multimodal decision-making tasks. Rather than generating freeform text, it evaluates an input state alongside a predefined decision schema to present the selected outcome along with calibrated probabilities. This model excels in making choice decisions from established categories and also handles noul decisions, assessing the probability of a yes-or-no answer. Additionally, it can analyze images in combination with text, allowing it to make well-informed decisions based on visual inputs such as screenshots. Common use cases involve routing support requests to the correct departments, like billing, technical support, or sales, and determining whether a message conveys urgency. With an overall accuracy rate of 85.71% across 11 diverse benchmarks, including FinancialPhraseBank, RAGTruth, JudgeBench, TabFact, ContractNLI, Circa, Belebele, and TruthfulQA binary, Perplexity Decider illustrates remarkable versatility and effectiveness in various decision-making environments. This significant accuracy level not only highlights the model's capabilities but also points to its potential for improving automated systems that require a nuanced understanding of both text and images, paving the way for future advancements in decision-making technologies.

Media

Media

Integrations Supported

Mistral AI

Integrations Supported

Perplexity Decisions API
Qwen3.8-27B

API Availability

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

Free
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training

Training Options

Documentation Hub

Company Facts

Organization Name

Mistral AI

Date Founded

2023

Company Location

France

Company Website

mistral.ai/news/shieldstral/

Company Facts

Organization Name

Perplexity

Date Founded

2022

Company Location

United States

Company Website

huggingface.co/perplexity-ai/pplx-decider-v1-27b

Categories and Features

AI Models

Not specified

Content Moderation

Not specified

Categories and Features

AI Decision Models

Not specified

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