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This week in AI updates: Claude Opus 4.6, GPT-5.3-Codex, and more (February 6, 2026)

Anthropic launches 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 on Opus’ coding skills, and it now plans more carefully, sustains agent tasks for longer, can run more reliably in larger codebases, and has better code review and debugging skills, helping it to more effectively catch its own mistakes.

In addition to coding improvements, Claude Opus 4.6 also features improved abilities in tasks like running financial analyses, doing research, and using and creating documents, spreadsheets, and presentations.

It also features a 1M context window (beta), which is a first for Opus models, Anthropic said.

OpenAI releases GPT-5.3-Codex

The latest version of OpenAI’s coding agent builds on the coding performance of the previous release as well as the reasoning and knowledge capabilities of GPT-5.2. It is capable of tackling long-running tasks involving research, tool use, and complex execution.

OpenAI also noted that GPT-5.3-Codex is the company’s first model that helped to create itself, as the team used early versions of it to troubleshoot training, manage deployment, and diagnose test results and evaluations.

It is now available through paid ChatGPT plans wherever Codex is enabled, including the app, CLI, IDE extension, and web, and API access will be enabled shortly.

Google previews Developer Knowledge API, MCP server that will make it easier to access docs for Google services

The Developer Knowledge API allows developers to search and retrieve documentation for Google’s services in Markdown. This includes documentation from firebase.google.com, developer.android.com, docs.cloud.google.com, and more.

Google is re-indexing all of its documentation within 24 hours of a service being updated to ensure that developers can stay up-to-date with information related to the latest releases.

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 this can enable more advanced capabilities as developers are writing code, such as being able to ask the best way to implement push notifications in Firebase, check the docs to find the best way to fix a specific error, or compare two different services for a particular use case.

Xcode 26.3 adds agentic coding support

Apple is enabling agentic coding 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 reasoning of these models directly into their app-building workflow. This connection combines the power of these agents with Xcode’s native capabilities to provide the best results when developing for Apple platforms, giving developers the flexibility to work with the model that best fits their project,” Apple wrote in an announcement.

Opsera introduces new DevOps agents to address AI-assisted coding issues

Opsera is releasing several new agents as a part of its Agentic DevOps offering that proactively manage DevOps workflows in an attempt to address some of the bottlenecks introduced by AI-assisted coding.

According to a recent report from the company, AI-assisted coding can speed up metrics like Time-to-Pull Request or test pass rate, but it is also subject to bottlenecks that slow delivery down, such as longer PR review times. For example, the company found that AI-assisted workflows had a 48-58% faster average Time-to-Pull Request, but that AI-generated pull requests wait 4.6x as long to be reviewed compared to human-written ones.

Opera also found that AI-generated code suffered from issues like 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’s models will be natively available on Snowflake Cortex AI across the three major cloud providers, and will also be accessible through Snowflake Intelligence.

“By bringing OpenAI models to enterprise data, Snowflake enables organizations to build and deploy AI on top of their most valuable asset using the secure, governed platform they already trust,” said Sridhar Ramaswamy, CEO of Snowflake. “Customers can now harness all their enterprise knowledge in Snowflake together with the world-class intelligence of OpenAI models, enabling them to build AI agents that are powerful, responsible, and trustworthy. Together, we’re setting a new standard for AI innovation, helping businesses transform with confidence, while maintaining strong security and compliance standards.”

The post This week in AI updates: Claude Opus 4.6, GPT-5.3-Codex, and more (February 6, 2026) appeared first on SD Times.



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