This week in AI updates: Claude Opus 4.6, GPT-5.3-Codex, and more (February 6, 2026)
Anthropic presents Claude Opus 4.6
Claude Opus 4.6 is the latest version of the company’s most powerful class of AI models. Anthropic says that this release improves Opus’s coding capabilities, and now it programs more carefully, supports agent tasks for longer periods of time, can run more reliably on large codebases, and has better code review and debugging capabilities, helping it catch its errors more effectively.
In addition to coding improvements, Claude Opus 4.6 also has improved capabilities in tasks such as performing financial analysis, conducting research, and using and creating documents, spreadsheets, and presentations.
It also has a 1M content window (beta), a first for Opus models, Anthropic said.
OpenAI releases GPT-5.3-Codex
The latest version of the OpenAI code agent builds on the code performance of the previous release and the reasoning power and knowledge of GPT-5.2. It can handle long-term tasks that include research, tool use, and complex execution.
OpenAI also noted that GPT-5.3-Codex is the company’s first self-inventory model, as the team used its previous versions to solve training, manage deployments, and identify test and evaluation results.
It is now available for paid ChatGPT plans wherever Codex is enabled, including app, CLI, IDE extension, and web, and API access will be enabled soon.
Google is previewing the Developer Knowledge API, an MCP server that will make it easier to access documentation for Google services
The Developer Knowledge API allows developers to search and find documentation for Google services in Markdown. This includes documentation from firebase.google.com, developer.android.com, docs.cloud.google.com, and more.
Google also displays all its documents within 24 hours after the service is updated to ensure that developers can stay up to date with information related to the latest release.
In addition to the Developer Knowledge API, Google is releasing a related MCP server to enable development teams to connect it to their IDEs and AI coding assistants. The company explained that this could enable more advanced capabilities as developers write code, such as being able to query the best way to use push notifications in Firebase, check the documentation for the best way to fix a specific bug, or compare two different services for a specific use case.
Xcode 26.3 adds agent code support
Apple enables agent codes within Xcode in the latest version of the development platform (version 26.3).
Developers will now be able to use Anthropic’s Claude Agent and OpenAI’s Codex directly in Xcode.
“With seamless access to Claude Agent and Codex, developers can bring the advanced thinking of these models directly into their application development workflow. This connection combines the power of these agents with the native power of Xcode to provide the best results when developing for Apple platforms, giving developers the ability to adapt to work with the model that best suits their project,” wrote Apple in the announcement.
Opsera introduces new DevOps agents to tackle AI-assisted coding problems
Opsera is releasing several new agents as part of its Agentic DevOps offering that proactively manages DevOps workflows in an effort to solve some of the challenges introduced by AI-assisted coding.
According to a recent report from the company, AI-assisted coding can accelerate metrics such as Time-to-Pull Application or pass rate, but it is also subject to problems that reduce delivery, such as long PR review times. For example, the company found that AI-assisted workflows had a 48-58% faster Pull Request Time, but AI-generated pull requests waited 4.6 times longer to be reviewed compared to human-written ones.
Opera also found that AI-generated code suffered from problems such as increased code duplication (13.5% vs 10.5%) and security vulnerabilities (15-18% more) compared to human-written code.
Snowflake and OpenAI announce $200 million partnership
The two companies will work on building customized AI solutions for their joint customers. Additionally, OpenAI models will be available natively in Snowflake Cortex AI across all three major cloud providers, and will be available through Snowflake Intelligence.
“By bringing OpenAI models to business data, Snowflake enables organizations to build and deploy AI on top of their most valuable assets using a secure, managed platform they can trust,” said Sridhar Ramaswamy, CEO of Snowflake. “Customers can now leverage all of their business intelligence on Snowflake and the world-class intelligence of OpenAI models, enabling them to build powerful, responsible, and trustworthy AI agents. Together, we’re setting a new standard for AI innovation, helping businesses evolve with confidence, while maintaining strong security and compliance standards.”
