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May 28, 2025 (Updated: May 28, 2025)published

News 4

AI Developments Roundup (Late May 2025) – What Developers Need to Know

The past week has been packed with AI news that directly impacts software development. From major AI coding assistants and IDEs leveling up to new model launches claiming coding supremacy, here’s a concise summary of the latest AI developments relevant to developers. We’ll cover updates from Cursor, Windsurf, JetBrains, OpenAI, Anthropic, Google, Microsoft, and more – focusing on practical implications and official announcements.

Cursor 0.50 – AI Code Editor Adds Background Agents and More

Cursor, the AI-powered code editor, rolled out a major 0.50 update with features aimed at boosting developer productivity :

  • Unified Pricing & “Max Mode”: Simplified usage-based pricing across models, with a new Max Mode to unlock full capabilities of top models (like GPT-4.1, Claude 3.7, etc.) using a token-based pay-as-you-go scheme . This makes it clearer how AI usage is billed and lets devs tap maximum model power when needed.

  • Background Agent (Preview): Introduced the ability to run AI agents in the background for parallel task execution . Developers can offload multiple coding tasks to Cursor’s agents (each running in isolated environments) and monitor progress asynchronously. This can speed up complex refactoring or analysis tasks.

  • Improved Editing & Context: A refreshed inline edit UI with new options for multi-file changes, support for multi-root workspaces, and better context management (including an @folders tool to automatically include relevant files) . Cursor now indexes large repos much faster and supports duplicating chat sessions to explore different solutions in parallel.

These enhancements solidify Cursor’s reputation as a “full IDE” with AI deeply integrated. The background agents and multi-file awareness in particular give developers more flexible workflows directly in the editor.

OpenAI’s Big Moves – Windsurf Acquisition and the New Codex Agent

OpenAI made headlines with a strategic acquisition and a powerful new coding agent:

  • Acquiring Windsurf (Codeium): OpenAI agreed to buy Windsurf – an AI-first code editor (formerly Codeium) – for roughly $3 billion . This pending deal (OpenAI’s largest to date) is aimed at bolstering OpenAI’s coding assistance offerings and complementing ChatGPT’s capabilities . Windsurf’s editor (with its AI “Cascade” assistant and agentic features) will likely enhance OpenAI’s developer toolset once integrated. This move underscores the intense competition in AI coding tools and OpenAI’s commitment to lead in that space.

  • Launching Codex Agent in ChatGPT: OpenAI also introduced ChatGPT Codex, a cloud-based AI coding agent available in ChatGPT for Pro/Enterprise users . This agent (powered by a new “codex-1” model fine-tuned for software tasks) can handle complex development jobs from start to finish. For example, Codex can write new features, answer questions about your codebase, fix bugs, and even propose pull request changes, each in its own sandboxed environment . It leverages an advanced OpenAI “o3” model optimized via RLHF for coding, enabling a kind of “autonomous pair programmer” that runs and tests code until it passes specs . Developers can assign multiple tasks in parallel (for instance, generate a new module while separately having it troubleshoot a test suite), and watch in real-time as Codex works through each task. This promises to offload a lot of grunt work – though it’s in research preview, it shows the future of more agentic coding assistants built into developer workflows.

(On a related note, OpenAI’s latest model GPT-4.1 was recently rolled out to all ChatGPT Plus users , offering improved reasoning and coding reliability. Also, OpenAI is exploring features like third-party “Sign in with ChatGPT” for developers , reflecting a broader push to make its AI platform more developer-friendly.)

JetBrains IDEs – AI Assistant Expands (Free Tier & Multi-Model Support)

JetBrains announced significant enhancements to its AI Assistant across popular IDEs (IntelliJ IDEA, PyCharm, WebStorm, etc.), focusing on accessibility and intelligence :

  • New Free Tier: With the 2025.1 release, JetBrains made all built-in AI features free for all users of its IDEs . This means even developers on the free plan get unlimited basic AI completions and can use local AI models, with a quota for advanced features that tap cloud models. It’s a big shift to ensure every JetBrains user can benefit from AI assistance out-of-the-box, lowering the barrier to entry. (Paid Pro/Ultimate plans still exist for higher usage and enterprise needs, but core AI features are now included by default in the IDEs.)

  • Smarter & Multi-Model Support: The AI Assistant got smarter code completion and analysis, with support for the latest models from different providers – including OpenAI’s GPT-4.1, Anthropic’s Claude 3.7 “Sonnet”, and Google’s Gemini 2.5 Pro . Developers can choose or automatically use these cloud models for better suggestions and code generation. The assistant also added Retrieval-Augmented Generation (RAG) capabilities for more context-aware help (e.g. understanding your whole project or docs), and a new chat-based multi-file edit mode to apply changes across several files in one AI query .

  • Unified Subscription (AI + Agents): JetBrains bundled its AI features with “Junie” (an internal coding agent) under one subscription model . Essentially, if you have any paid JetBrains subscription (including the All Products Pack or dotUltimate), you now automatically have access to JetBrains AI Pro features at no extra cost . This streamlines how teams add AI to their JetBrains toolchain.

For JetBrains developers, these updates mean easier access to powerful AI assistance right in their IDE – no extra plugins or payments needed – and the ability to leverage multiple cutting-edge AI models for coding tasks.

Anthropic’s Claude 4 – New Models Claim the Coding Crown

Anthropic used its inaugural developer conference (May 22) to launch the Claude 4 family of AI models, with a strong emphasis on coding performance :

  • Claude Opus 4 and Sonnet 4: These are Anthropic’s two new flagship models. They’re designed for “extended reasoning” and can handle long-horizon tasks and large contexts. Notably, Anthropic tuned both models to excel at programming tasks – writing and editing code effectively . Early benchmarks back this up: Anthropic reports the Claude 4 series now leads on SWE-bench (Software Engineering benchmark), beating other models on realistic coding challenges . In other words, Claude Opus 4 is being positioned as possibly the best coding AI currently available, outscoring rivals on coding correctness and the ability to sustain focus over days-long projects.

  • Expanded Availability: Claude Sonnet 4 (the “everyday” model) is being made accessible to all users of Anthropic’s chatbot, while Claude Opus 4 (the larger, more powerful model) is available to paying users and via API (including on platforms like AWS Bedrock and Google Vertex AI) . This tiered access means developers can try out the standard model easily, whereas Opus 4 is a premium option for heavy-duty use cases (with higher pricing given its capabilities).

  • Claude Code – GA Launch: Alongside the models, Anthropic officially released Claude Code to general availability. This is their AI coding assistant suite that brings Claude’s power into developers’ daily workflow . Claude Code now offers:

    • IDE Integrations: New beta plugins for VS Code and JetBrains IDEs to use Claude directly while coding . Claude’s suggestions and edits appear inline, letting you accept changes seamlessly in your editor.

    • Background Tasks & GitHub Actions: Claude Code can run agent-like background tasks for development. For example, it can be invoked via GitHub Actions to perform code reviews or other CI/CD tasks autonomously .

    • Claude Code SDK: Anthropic released an SDK so developers can build their own AI agents and tooling on top of Claude’s core capabilities . They even demonstrated a “Claude Code on GitHub” bot (in beta) – you can tag the bot on a pull request to have Claude automatically respond to feedback, fix CI errors, or make code modifications in that PR .

For developers, Anthropic’s advancements mean there’s a new serious competitor in town for AI coding help. If you’re looking for an alternative to OpenAI’s models, the Claude 4 models (especially Opus 4) and the Claude Code tools might offer top-tier code generation and the convenience of integration with your existing dev setups.

Google I/O 2025 – Gemini 2.5 and AI Studio Updates for Developers

At Google I/O 2025, Google announced a slew of AI improvements geared towards developers, centered on its Gemini AI platform and coding tools:

  • Gemini 2.5 “Flash” – Faster Coding Model: Google introduced a new version of its flagship model, Gemini 2.5 Flash, optimized for speed and stronger performance on coding and complex reasoning tasks . This variant is designed to deliver similar accuracy to the top model (Gemini 2.5 Pro) but with much faster responses, making it ideal for interactive development use cases. Google also added “thought summaries” and upcoming “thinking budgets” features to help developers understand and control the reasoning process of Gemini models (useful for debugging AI agent behavior or managing costs) . The Gemini 2.5 models (both Flash and Pro) are available in Google’s AI platforms (Google AI Studio and Vertex AI) as a preview now, with general availability coming soon .

  • New Models & Tools: Google unveiled several new models to broaden its AI offerings. For example, Gemma 3n is a fast, efficient open-source multimodal model that can even run on laptops or phones (handling text, images, audio, etc.), and Gemini Diffusion is an experimental ultra-fast text generation model that matches Gemini’s coding abilities but at 5× the generation speed . These aren’t coding models per se, but could be part of developers’ toolkit for specialized needs (e.g. mobile AI or rapid responses). Additionally, Google announced domain-specific models like MedGemma (for medical data) and SignGemma (for sign language translation) to empower developers building in those areas .

  • AI Studio & Code Assist: Perhaps most directly relevant, Google’s AI Studio (their platform for building with AI) got updates to make coding easier. They showcased how the Gemini API is integrated into AI Studio’s code editor, allowing developers to invoke Gemini 2.5 for code help as they build apps . Moreover, Google’s own AI coding assistant, Gemini Code Assist, is now generally available for all developers, free of charge . This includes:

    • Gemini Code Assist for Individuals: an in-IDE/code editor assistant (similar to GitHub Copilot) that provides code completions and suggestions.

    • Gemini Code Assist for GitHub: an AI agent that can review code changes on GitHub pull requests (acting as an automated code reviewer).

      These tools aim to help developers write and review code more efficiently, now without waitlists or fees.

  • “Agentic” Colab Notebooks: In a glimpse of what’s next, Google teased a new fully agentic mode for Google Colab notebooks . Soon, developers will be able to simply tell Colab what they want to achieve (in natural language) – and Colab will autonomously attempt to write, run, and fix code in the notebook to accomplish the goal. It’s like having an AI lab assistant that executes code, debugs errors, and iterates until the task is done. This forthcoming feature (powered by Gemini under the hood) could significantly speed up prototyping and data experiments by automating the trial-and-error coding process.

For developers in the Google ecosystem, these updates reinforce that Google is investing heavily in AI assistance at every level – from coding helpers and reviewer bots to behind-the-scenes model improvements for speed and reasoning transparency. If you use Google Cloud, Android, or TensorFlow, expect these AI capabilities to become readily accessible in your dev environment.

Microsoft Build 2025 – GitHub Copilot Evolves and Multi-Agent Orchestration

At Microsoft’s Build 2025 conference (which was all about AI and agents), there were key announcements blending AI into the software development lifecycle:

  • GitHub Copilot becomes an “AI Partner”: GitHub’s popular AI pair programmer, Copilot, is graduating from just inline code suggestions to a more agentic role. Microsoft previewed a new asynchronous coding agent integrated into the GitHub platform . This means Copilot will be able to handle larger tasks like generating entire modules, performing code reviews, or orchestrating CI/CD tasks on its own (not just in your editor). Copilot is getting features like prompt management and lightweight evaluations so developers can more easily direct and trust the AI on complex tasks . Notably, Microsoft is open-sourcing the GitHub Copilot Chat extension for VS Code . All the AI-powered chat and assistance capabilities of Copilot in VS Code will live in a public repository, enabling developers to extend, customize, or self-host their own AI coding assistants based on this technology. This open-sourcing move underlines Microsoft’s commitment to an “open, collaborative, AI-powered” developer ecosystem and is big news for those who want more control over their AI tools.

  • Azure AI Foundry – Multi-Agent Orchestration: Microsoft’s Azure AI Foundry (a platform for building and managing AI apps) introduced an Agent Service now in general availability, which allows developers to coordinate multiple AI agents working together . For complex scenarios, you might want one agent handling, say, database queries, another handling UI code changes, and another doing testing – the Agent Service and its SDK (with frameworks like Semantic Kernel and AutoGen unified) let you chain these specialized agents and have them communicate (they even introduced an Agent-to-Agent (A2A) communication protocol and a Model Context Protocol (MCP)) . In short, Microsoft is providing the tooling to build “multi-agent” AI systems that can tackle large-scale problems by delegating subtasks among themselves. They also rolled out features for monitoring and securing these agents (observability dashboards, an Entra Agent ID system to manage agent identities and permissions, etc.) to make sure enterprises can trust AI agents in production .

  • Windows AI Foundry & More Models: In addition, Microsoft announced Windows AI Foundry, a platform to run and fine-tune AI models on Windows devices or across cloud+edge, and revealed that Azure AI will host xAI’s Grok 3 models and over 1,900 other models as part of an expanded model catalog . (Grok is an AI model from Elon Musk’s new AI company, xAI – its inclusion shows Microsoft’s openness to integrating third-party models for developers to use.)

From a developer’s perspective, the Build announcements mean GitHub Copilot is becoming more powerful (and customizable), potentially taking on more of your software development workflow (from coding to deployment) in the near future. And if you’re building your own AI-powered apps or developer tools, Microsoft’s new agent orchestration and model hosting services could provide a robust backbone for those projects.

Other Noteworthy AI Tool Updates

  • Replit Ghostwriter’s New Element Editor: Cloud IDE platform Replit added a handy new feature to its AI dev experience. The “Element Editor” allows developers to visually edit UI elements in their live preview with no code, as if they were using a design tool . You can click on text in your app preview and just start typing to change it, or use an eyedropper and sliders to adjust colors, font sizes, padding, etc. under the hood, Replit will sync those changes back to your source code automatically . Simple styling tweaks no longer require digging through CSS or HTML – it’s point-and-click, with Ghostwriter’s AI agent stepping in only if larger code refactoring is needed. This “ AI-assisted WYSIWYG” approach can significantly speed up front-end tweaks and is a glimpse of how AI can bridge the gap between design and code.

  • Meta’s Code Llama & Open-Source Models: On the open-source front, developers continue to benefit from community-driven AI models. Meta’s Code Llama (released last year) and variants like StarCoder remain popular for those who prefer self-hosted code generation. While no new releases from Meta hit this week, the presence of open models was felt in others’ announcements – for instance, JetBrains and Microsoft explicitly support using open/local models in their AI tools, and Google introduced Gemma 3n as an open model. The ecosystem is moving toward a mix of proprietary and open models, giving developers choices in tooling.

  • AI in CI/CD and DevOps: A quiet trend is the integration of AI in CI/CD pipelines. GitHub Actions now has various AI apps (like Anthropic’s Claude Code mentioned above) that can auto-review or modify code. AWS hasn’t been silent either – Amazon CodeWhisperer (AWS’s AI coding assistant) continues to improve, though no major AWS AI dev news came out this week. We anticipate more devops-oriented AI announcements in coming weeks as competition heats up.

In summary, the last week has shown accelerated convergence of AI and software development: big tech players and startups alike are racing to equip developers with smarter tools – whether it’s through acquisitions, new model deployments, or deeper IDE integrations. As a developer, it’s a great time to experiment with these advancements. Many of the new features (ChatGPT Codex agent, Gemini Code Assist, JetBrains AI, etc.) are available in previews or free tiers, so you can try them in your workflow. Keeping an eye on this fast-moving landscape will help you adopt the tools that can give you a productivity boost in coding, code review, and beyond.

Sources: The information above is sourced from official announcements and reputable reports, including OpenAI’s and JetBrains’ blogs, Reuters and TechCrunch reports, Anthropic’s release notes, Google’s I/O keynote highlights, Microsoft Build keynotes, and Replit’s blog updates , among others. Each link points to the original source for further reading on that topic. Enjoy exploring these new AI tools, and happy coding!