MVMara VanceSenior Editor — Models & Evaluation

Mara leads UseAgent’s coverage of foundation models, architectures and evaluation. She focuses on cutting through benchmark hype to what actually matters for builders.

LLMsModel EvaluationAI Research

7 articles

Vector Databases Explained for Builders
Core TechnologiesMara VanceJun 12, 2026

Vector Databases Explained for Builders

Explore the fundamentals of vector databases and how they are revolutionizing data management for developers and data scientists alike.

Hallucinations: Why LLMs Make Things Up and How to Reduce It
AI EvaluationMara VanceJun 12, 2026

Hallucinations: Why LLMs Make Things Up and How to Reduce It

Explore why large language models (LLMs) sometimes generate inaccurate information and discover methods to mitigate these 'hallucinations'.

Multimodal AI: Why Text-Only Models Are Becoming the Exception
Core TechnologiesMara VanceJun 12, 2026

Multimodal AI: Why Text-Only Models Are Becoming the Exception

Explore why the shift towards multimodal AI is making text-only models the exception in the evolving landscape of artificial intelligence.

Open Source vs Closed AI Models: The State of Play
Models & SystemsMara VanceJun 12, 2026

Open Source vs Closed AI Models: The State of Play

Explore the evolving dynamics between open source and closed AI models, examining their benefits, challenges, and the impact on innovation and accessibility.

How to Evaluate an LLM: The Benchmarks That Actually Matter
AI EvaluationMara VanceJun 12, 2026

How to Evaluate an LLM: The Benchmarks That Actually Matter

Explore the essential benchmarks for evaluating large language models, focusing on metrics that truly reflect their capabilities and limitations.

RAG vs Fine-Tuning: Which One Does Your Project Actually Need?
Models & SystemsMara VanceJun 12, 2026

RAG vs Fine-Tuning: Which One Does Your Project Actually Need?

Explore the differences between Retrieval-Augmented Generation (RAG) and Fine-Tuning to determine which method suits your AI project's needs.

Transformers Explained: The Architecture Behind Modern AI
Core TechnologiesMara VanceJun 12, 2026

Transformers Explained: The Architecture Behind Modern AI

Explore the architecture of Transformers, a revolutionary model in AI that's powering advancements in natural language processing and beyond.