OpenAI Introduces GPT 5.2 | Mistral AI Ships Devstral 2 Coding Models..

Here is your today’s AI Dev Brief from Marktechpost, covering core research, models, infrastructure tools, and applied updates for AI developers and researchers. BTW, we just released our Latest Machine Learning Global Impact Report along with Interactive Graphs and Data: Revealing Geographic Asymmetry Between ML Tool Origins and Research Adoption. Feel free to check out the platform, its completely free and no login required.

Agent frameworks are now good at reasoning and tools, but most teams still write custom code to turn agent graphs into robust user interfaces with shared state, streaming output and interrupts. CopilotKit targets this last mile. It is an open source framework for building AI copilots and in-app agents directly in your app, with real time context and UI control. The release of of CopilotKit’s v1.50 rebuilds the project on the Agent User Interaction Protocol (AG-UI) natively.The key idea is simple; Let AG-UI define all traffic between agents and UIs as a typed event stream to any app through a single hook, useAgent..... Read the full insights/article here.

GPT 5.2 introduces a three tier family, Instant, Thinking and Pro, that targets real world coding, analytics and agent workloads with higher accuracy at the same 400k context window. GPT 5.2 Thinking becomes the new default workhorse, beating or tying human professionals on 70.9 percent of GDPval tasks and pushing state of the art scores on SWE Bench, ARC AGI and GPQA, while GPT 5.2 Pro adds extra compute for the hardest scientific and reasoning problems, at a higher but predictable token based price.. Read the full insights/article here.

MiniMax has opened applications for its Developer Ambassador Program, aimed at independent ML and LLM developers who are already building with MiniMax models. Ambassadors get access to upgraded or free plans, early access to new releases, direct channels to the product and R&D teams, and visibility for their work through the MiniMax community and events Check out the details.

Mistral AI has launched Devstral 2 and Devstral Small 2 as open weight coding models with 256K context, optimized for agentic repository level edits and high SWE bench Verified scores, and paired them with Mistral Vibe CLI, an Apache 2.0 terminal native coding agent that brings project aware, multi file automation directly into the shell and Zed IDE for practical, production oriented vibe coding workflows. Read the full insights/article here.

▶ [Open Source] Rogue: An Open-Source AI Agent Evaluator worth trying Codes & Examples

▶ A Coding Guide to Build a Procedural Memory Agent That Learns, Stores, Retrieves, and Reuses Skills as Neural Modules Over Time Codes Tutorial

▶ Building an Advanced PaperQA2 Research Agent with Google Gemini for Scientific Literature Analysis Codes Tutorial

▶ A Code Implementation to Build a Multi-Agent Research System with OpenAI Agents, Function Tools, Handoffs, and Session Memory Codes Tutorial

▶ A Coding Implementation to Build a Self-Adaptive Goal-Oriented AI Agent Using Google Gemini and the SAGE Framework Codes Tutorial

100+ more open codes/notebooks here ➡️

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