Deep Learning Weekly: Issue 433
Mistral 3, MCP Explorer, a paper on Agentic Bridge Framework: Closing the Gap Between Agentic Capability and Performance Benchmarks, and many more!
This week in deep learning, we bring you Introducing Mistral 3, MCP Explorer, and a paper on Agentic Bridge Framework: Closing the Gap Between Agentic Capability and Performance Benchmarks.
You may also enjoy Laying the Foundations for Visual Intelligence, 8 learnings from 1 year of agents, a paper on SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions, and more!
As always, happy reading and hacking. If you have something you think should be in next week’s issue, find us on Twitter: @dl_weekly.
Until next week!
Industry
The Mistral team announced Mistral 3, which includes three state-of-the-art small models and Mistral Large 3 — a sparse mixture-of-experts model.
Laying the Foundations for Visual Intelligence—$300M Series B | Black Forest Labs
Black Forest Labs raises $300M Series B at $3.25B valuation to advance visual intelligence models beyond its popular FLUX image generation platform.
New training method boosts AI multimodal reasoning with smaller, smarter datasets
Researchers at MiroMind AI and several Chinese universities have released OpenMMReasoner, a training framework that improves the capabilities of models in multimodal reasoning.
Skill Learning: Bringing Continual Learning to CLI Agents
The Letta team released Skill Learning, a way for Letta Code to dynamically learn skills over time.
MLOps & LLMOps.
An educational project for learning Anthropic’s Model Context Protocol through a narrative-driven and interactive learning experience.
8 learnings from 1 year of agents
A detailed retrospective blog post sharing 8 key learnings from a year of developing PostHog AI, focusing on architectural choices like using a single LLM loop and the power of continuous model improvements.
OpenSearch as an agentic memory solution: Building context-aware agents using persistent memory
A blog post that explores the memory challenges facing AI agents, introduces agentic memory’s core concepts, and demonstrates how to integrate it with your agent frameworks.
Build and Run Secure, Data-Driven AI Agents
A technical guide detailing the deployment of NVIDIA’s AI-Q Research Assistant and Enterprise RAG Blueprints, which use Nemotron NIMs and an agentic Plan-Refine-Reflect workflow on Amazon EKS.
Learning
Evaluating honesty and lie detection techniques on a diverse suite of dishonest models
An alignment report evaluating techniques like fine-tuning and prompting to improve AI honesty and detect lies across five specialized testbed models.
A Rosetta Stone for AI benchmarks
A statistical paper introducing a “Rosetta Stone” framework that stitches together around 40 different AI benchmarks to rigorously measure long-run capability trends and forecast future algorithmic progress.
Custom instructions with AGENTS.md
A guide that shows you how to understand how Codex discovers persistent guidance, author global and per-project instruction files, and verify that Codex honors your setup during real CLI runs.
Following the Text Gradient at Scale
A blog post introducing Feedback Descent, a learning paradigm that uses rich, textual feedback instead of scalar rewards to guide iterative improvements in domains like molecular design and prompt optimization.
Libraries & Code
An open-source LLM evaluation tool used to debug, evaluate, and monitor LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Papers & Publications
Agentic Bridge Framework: Closing the Gap Between Agentic Capability and Performance Benchmarks
Abstract:
While agentic AI systems perform impressively on emerging capability benchmarks, existing performance evaluation suites focus on non-agentic workloads, leaving a critical gap in understanding system efficiency for multi-step, tool-using agents. We present the Agentic Bridge Framework for extracting actionable performance insights from capability evaluations through trace-level telemetry. Applying this framework to a multi-agent system on GAIA validation, we reveal that: (1) pass@N strategies provide diminishing accuracy returns; (2) search agents dominate token usage and latency, identifying web data gathering as the primary bottleneck; (3) reasoning models spend more tokens on context preservation than actual reasoning, highlighting costly inter-agent communication overhead. These findings inform critical design choices—context engineering, tool-use optimization, and phase-aware resource allocation—and illustrate how agent traces can inform reproducible performance workloads, bridging capability achievements with systems optimization for efficient agentic AI.
SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions
Abstract:
Humans continuously infer the states, goals, and behaviors of others by perceiving their surroundings in dynamic, real-world social interactions. However, most Theory of Mind (ToM) benchmarks only evaluate static, text-based scenarios, which have a significant gap compared to real interactions. We propose the SoMi-ToM benchmark, designed to evaluate multi-perspective ToM in embodied multi-agent complex social interactions. This benchmark is based on rich multimodal interaction data generated by the interaction environment SoMi, covering diverse crafting goals and social relationships. Our framework supports multi-level evaluation: (1) first-person evaluation provides multimodal (visual, dialogue, action, etc.) input from a first-person perspective during a task for real-time state inference, (2) third-person evaluation provides complete third-person perspective video and text records after a task for goal and behavior inference. This evaluation method allows for a more comprehensive examination of a model’s ToM capabilities from both the subjective immediate experience and the objective global observation. We constructed a challenging dataset containing 35 third-person perspective videos, 363 first-person perspective images, and 1225 expert-annotated multiple-choice questions (three options). On this dataset, we systematically evaluated the performance of human subjects and several state-of-the-art large vision-language models (LVLMs). The results show that LVLMs perform significantly worse than humans on SoMi-ToM: the average accuracy gap between humans and models is 40.1% in first-person evaluation and 26.4% in third-person evaluation. This indicates that future LVLMs need to further improve their ToM capabilities in embodied, complex social interactions.
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This finding highlights a crucial point: the human mind interprets intentions not only through what it sees, but also through how it moves, feels, and participates in the scene. Models fail because they lack this embodied experience. Our Theory of Mind (ToM) arises from the body, from emotion, and from context; therefore, understanding others remains, for now, a profoundly human capacity.
Excellnt curation of agentic AI research. The Agentic Bridge Framework finding that reasoning models spend more tokens on context preservation than actual reasoning is a critcal insight for anyone building multi-agent systems. It suggests that most of our "reasoning overhead" isnt cognitive work but rather inter-agent chatter, which means architectural improvements to context sharing could unlock bigger gains than model improvements alone.