--- title: AI News for Developers #28: Codex Multi-Agent, Claude... description: A weekly roundup of AI developer news covering major releases and updates from July 19–26, 2026. Highlights include OpenAI's Codex CLI 0.145.0 with improved... canonical: https://daily.dev/posts/ai-news-for-developers-28-codex-multi-agent-claude-opus-5-and-gemini-3-6-flash-1cxtekzs2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: AI News for Developers #28: Codex Multi-Agent, Claude Opus 5, and Gemini 3.6 Flash | daily.dev og:description: A weekly roundup of AI developer news covering major releases and updates from July 19–26, 2026. Highlights include OpenAI's Codex CLI 0.145.0 with improved... og:url: https://daily.dev/posts/ai-news-for-developers-28-codex-multi-agent-claude-opus-5-and-gemini-3-6-flash-1cxtekzs2 og:image: https://api.daily.dev/og/posts/1cXTEkzS2.png og:image:alt: AI News for Developers #28: Codex Multi-Agent, Claude Opus 5, and Gemini 3.6 Flash og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # AI News for Developers #28: Codex Multi-Agent, Claude Opus 5, and Gemini 3.6 Flash **[proflead](https://daily.dev/sources/proflead)** · [@proflead](https://daily.dev/proflead) · 3 min read · 6 upvotes · 1 comments ## Summary A weekly roundup of AI developer news covering major releases and updates from July 19–26, 2026. Highlights include OpenAI's Codex CLI 0.145.0 with improved multi-agent workflows, Anthropic's Claude Opus 5 with 1M token context for complex coding tasks, Google's Gemini 3.6 Flash for coding and production agents, GitHub's new agent confidence controls in Issues, Microsoft's Agent Framework Harness for Python and .NET, Cursor's automatic model routing, and JetBrains Context for semantic repository indexing across coding agents. ## Content Hey Devs! This week brought new models, better coding agents, and more tools for building reliable AI workflows. Here are the main updates from July 19–26, 2026. ### [**OpenAI**](https://www.linkedin.com/company/openai/)** improves Codex multi-agent workflows** Codex CLI 0.145.0 improves Multi-Agent V2 with configurable subagent models, reasoning levels, roles, and concurrency. Codex also adds better imports from Claude Code and Cursor, experimental thread history and memory, audio input, inline visualizations, and multi-folder project support. This makes it easier to balance speed, cost, and reasoning quality across different agents. [**Read the Codex changelog**](https://learn.chatgpt.com/docs/changelog) ### [**Anthropic**](https://www.linkedin.com/company/anthropicresearch/)** releases Claude Opus 5** Claude Opus 5 is designed for complex coding, debugging, large repositories, and long-running agent tasks. It includes a 1-million-token context window and configurable effort levels. It is also rolling out in GitHub Copilot. [**Read the Anthropic announcement**](https://www.anthropic.com/news/claude-opus-5) ### [**Google**](https://www.linkedin.com/company/google/)** launches Gemini 3.6 Flash** Gemini 3.6 Flash focuses on coding, multimodal applications, computer use, and production AI agents. Google also introduced Gemini 3.5 Flash-Lite for faster and cheaper high-volume tasks such as classification, extraction, and data processing. [**Explore the new Gemini models**](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-6-flash-3-5-flash-lite-3-5-flash-cyber/) ### [**GitHub**](https://www.linkedin.com/company/github/)** adds controls for AI agents** GitHub Issues can now show an agent’s confidence and reasoning before it applies a change. Teams can automatically accept high-confidence actions while sending uncertain changes for human review. GitHub also made its Copilot cloud agent integration for Linear generally available. [**Read about GitHub’s agent controls**](https://github.blog/changelog/2026-07-23-agent-automation-controls-in-github-issues-in-public-preview/) ### **Microsoft releases its Agent Framework Harness** Microsoft’s new framework for Python and .NET includes agent loops, planning, memory, crash recovery, approvals, context management, and observability. Declarative Workflows 1.0 also allows developers to define agent workflows and approval steps using YAML. [**Explore Microsoft Agent Framework**](https://devblogs.microsoft.com/agent-framework/the-microsoft-agent-framework-harness-is-now-released/) ### [**Cursor**](https://www.linkedin.com/company/cursorai/)** introduces automatic model routing** Cursor Router automatically selects a suitable model for each request. Developers can optimize routing for intelligence, balance, or cost. This could reduce the need to manually select a model for every coding task. [**View the Cursor changelog**](https://cursor.com/changelog) ### [**JetBrains**](https://www.linkedin.com/company/jetbrains/)** improves context for coding agents** JetBrains Context creates a semantic repository index for Claude, Codex, and Junie. It helps agents find relevant code across one or multiple repositories while potentially reducing agent turns, latency, and cost. [**Read the JetBrains announcement**](https://blog.jetbrains.com/ai/2026/07/introducing-jetbrains-context-repository-intelligence-for-coding-agents/) ### **I Tested GPT-5.6 Sol Reasoning Levels So You Don't Have To** Does higher GPT-5.6 Sol reasoning actually improve your code? See how four different settings affect coding task results and speed. _Watch on YouTube: _[**_https://youtu.be/wBkzXGNaZxY_**](https://youtu.be/wBkzXGNaZxY) Thanks for reading! Subscribe to **AI News for Developers** for more practical AI and developer updates. Cheers, proflead! ;) ## Similar posts on daily.dev - [Weekly Dose \#12 - Claude Opus 5, Gemini 3.6 and the New Agent Stack](https://daily.dev/posts/weekly-dose-12---claude-opus-5-gemini-3-6-and-the-new-agent-stack-x62q7y7bf) · Machine Learning Pills · 0 upvotes · 0 comments - [This week in AI updates: Claude Sonnet 4.6, Gemini 3.1 Pro, and more \(February 20, 2026\)](https://daily.dev/posts/this-week-in-ai-updates-claude-sonnet-4-6-gemini-3-1-pro-and-more-february-20-2026--u1dfmxtin) · SD Times · 1 upvotes · 0 comments - [Medium](https://daily.dev/posts/medium-ngqu3iodt) · Medium · 0 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#openai-codex](https://daily.dev/tags/openai-codex) [View this post on daily.dev](https://daily.dev/posts/ai-news-for-developers-28-codex-multi-agent-claude-opus-5-and-gemini-3-6-flash-1cxtekzs2) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/ai-news-for-developers-28-codex-multi-agent-claude-opus-5-and-gemini-3-6-flash-1cxtekzs2","headline":"AI News for Developers #28: Codex Multi-Agent, Claude Opus 5, and Gemini 3.6 Flash","text":"A weekly roundup of AI developer news covering major releases and updates from July 19–26, 2026. 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