This Week in AI

Week ending December 29, 202532 updates

Anthropic(6 updates)

AnthropicPerformance

Claude Opus 4.5 Launch

What changed: Anthropic launched Claude Opus 4.5, their most intelligent model combining maximum capability with practical performance.

Why it matters: Ideal for complex specialized tasks, professional software engineering, and advanced agents. Features step-change improvements in vision, coding, and computer use.

AnthropicPricing

Claude Haiku 4.5 Launch

What changed: Launched Claude Haiku 4.5, the fastest and most intelligent Haiku model with near-frontier performance.

Why it matters: Ideal for real-time applications, high-volume processing, and cost-sensitive deployments requiring strong reasoning.

AnthropicModel Release

Claude Sonnet 4.5 Launch

What changed: Launched Claude Sonnet 4.5, their best model for complex agents and coding with highest intelligence across most tasks.

Why it matters: Major upgrade for developers building AI agents and coding assistants.

AnthropicModel Release

Structured Outputs (Beta)

What changed: Launched structured outputs in public beta, providing guaranteed schema conformance for Claude's responses.

Why it matters: Use JSON outputs for structured data responses or strict tool use for validated tool inputs.

AnthropicAPI Update

Agent Skills Launch

What changed: Launched Agent Skills, a new way to extend Claude's capabilities with organized folders of instructions, scripts, and resources.

Why it matters: Includes pre-built Skills for PowerPoint, Excel, Word, and PDF files, plus custom Skills via API.

AnthropicAPI Update

Claude in Microsoft Foundry

What changed: Launched Claude in Microsoft Foundry, bringing Claude models to Azure customers.

Why it matters: Azure billing and OAuth authentication with full Messages API support including extended thinking and prompt caching.

OpenAI(14 updates)

OpenAIModel Release

GPT-5.2 Release

What changed: Released GPT-5.2, the newest flagship model in the GPT-5 family with improvements in general intelligence, instruction following, and multimodality.

Why it matters: Enhanced vision, code generation (especially front-end UI), tool calling, and spreadsheet understanding.

OpenAIModel Release

GPT-5.2-Codex Introduction

What changed: Introduced GPT-5.2-Codex, their most advanced coding model with long-horizon reasoning.

Why it matters: Large-scale code transformations and enhanced cybersecurity capabilities.

OpenAIModel Release

ChatGPT Atlas Security Hardening

What changed: Strengthening ChatGPT Atlas against prompt injection attacks using automated red teaming.

Why it matters: Enhances security and reliability of ChatGPT Atlas.

OpenAIModel Release

Chain-of-Thought Monitorability

What changed: Introduced a new framework and evaluation suite for chain-of-thought monitorability.

Why it matters: Offers a promising path toward scalable monitoring of AI models.

OpenAIFeature

DOE Collaboration

What changed: Signed memorandum of understanding with U.S. Department of Energy for AI and advanced computing collaboration.

Why it matters: Supports scientific discovery and high-impact research applications.

OpenAIAPI Update

One in a million: celebrating the customers shaping AI’s future

What changed: OpenAI now has over one million customers using their AI to empower teams and unlock new opportunities.

Why it matters: Demonstrates the growing adoption and impact of OpenAI's solutions.

OpenAIModel Release

Continuously hardening ChatGPT Atlas against prompt injection

What changed: OpenAI is strengthening ChatGPT Atlas against prompt injection attacks using automated red teaming.

Why it matters: Enhances the security and reliability of ChatGPT Atlas.

OpenAIModel Release

Evaluating chain-of-thought monitorability

What changed: OpenAI introduces a new framework for chain-of-thought monitorability.

Why it matters: Offers a promising path toward scalable monitoring of AI models.

OpenAIFeature

Deepening our collaboration with the U.S. Department of Energy

What changed: OpenAI and the U.S. Department of Energy signed a memorandum of understanding for collaboration on AI and advanced computing.

Why it matters: Supports scientific discovery and establishes a framework for applying AI to high-impact research.

OpenAIModel Release

AI literacy resources for teens and parents

What changed: OpenAI shares new AI literacy resources for teens and parents.

Why it matters: Helps teens and parents use ChatGPT thoughtfully and safely.

OpenAIModel Release

Updating our Model Spec with teen protections

What changed: OpenAI updated its Model Spec with new Under-18 Principles for supporting teens.

Why it matters: Strengthens guardrails for teen interactions with ChatGPT.

OpenAIModel Release

Introducing GPT-5.2-Codex

What changed: OpenAI introduced GPT-5.2-Codex, its most advanced coding model.

Why it matters: Offers long-horizon reasoning, large-scale code transformations, and enhanced cybersecurity capabilities.

OpenAIModel Release

Addendum to GPT-5.2 System Card: GPT-5.2-Codex

What changed: Outlines comprehensive safety measures for GPT-5.2-Codex.

Why it matters: Details model-level and product-level mitigations for safety.

OpenAIModel Release

Introducing OpenAI Academy for News Organizations

What changed: OpenAI launched the OpenAI Academy for News Organizations.

Why it matters: Helps newsrooms use AI effectively with training and practical use cases.

Google(12 updates)

GooglePerformance

Gemini 3 Flash

What changed: Introduced Gemini 3 Flash, frontier intelligence built for speed.

Why it matters: Represents advancement in Google's AI capabilities with focus on performance.

GoogleModel Release

AI-Generated Video Verification

What changed: Expanded content transparency tools for AI-generated videos in the Gemini app.

Why it matters: Helps users identify AI-generated content for trust and safety.

GoogleFeature

2025 Research Breakthroughs

What changed: Highlighted 8 areas with major research breakthroughs in 2025.

Why it matters: Demonstrates Google's continued advancement in AI research.

GoogleFeature

Google's year in review: 8 areas with research breakthroughs in 2025

What changed: Google highlighted its research breakthroughs in 2025.

Why it matters: Demonstrates Google's advancements in AI research.

GoogleFeature

60 of our biggest AI announcements in 2025

What changed: Google summarized its major AI announcements from 2025.

Why it matters: Provides an overview of Google's AI developments and achievements.

GoogleFeature

40 of our most helpful AI tips from 2025

What changed: Google shared helpful AI tips from 2025.

Why it matters: Offers practical advice for using AI effectively.

GoogleFeature

5 ways AI agents will transform the way we work in 2026

What changed: Google discussed future trends in AI agents.

Why it matters: Highlights potential impacts of AI on work processes.

GoogleModel Release

You can now verify Google AI-generated videos in the Gemini app

What changed: Google expanded content transparency tools for AI-generated videos.

Why it matters: Helps users identify AI-generated content.

GoogleFeature

Inside Kaggle's AI Agents intensive course with Google

What changed: Google discussed its collaboration with Kaggle on AI Agents.

Why it matters: Supports developer education and AI skills development.

GoogleModel Release

Watch a podcast discussion about Gemini 3 and the future of Search

What changed: Google released a podcast on Gemini 3 and its impact on Search.

Why it matters: Provides insights into Google's vision for AI in Search.

GooglePerformance

Gemini 3 Flash: frontier intelligence built for speed

What changed: Google introduced Gemini 3 Flash.

Why it matters: Represents an advancement in Google's AI capabilities.

GoogleFeature

We’re publishing an AI playbook to help others with sustainability reporting

What changed: Google shared an AI playbook for sustainability reporting.

Why it matters: Supports organizations in streamlining sustainability reporting with AI.

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