OpenAI GPT-5.1 Models: The flagship GPT-5.1 and GPT-5.1 Thinking models are now available in the list of OpenAI models to choose from.

Claude Sonnet 4.5 Model: The Claude Sonnet 4.5 model is now available in the list of AI models to choose from.

Claude Haiku 4.5 Model: The Claude Haiku 4.5 model is now available in the list of AI models to choose from.

OpenAI GPT-5 Models Available: You now have access to the latest OpenAI GPT-5 (with default or minimal reasoning), GPT-5 Mini, and GPT-5 Nano models in the Chat view, giving you access to more advanced and efficient AI capabilities for your conversations and AI actions.

Anthropic Claude and Google Gemini AI Models: In addition to OpenAI models, you can now select Anthropic Claude and Google Gemini AI models in the Chat view for AI actions or conversations. The available models include Claude Opus 4.1 and 4, Claude Sonnet 4 and 3.7, as well as Gemini 2.5 Pro, Flash, and Flash Light.

Download Invoices for Your Team: If you manage a team in your AI Positron Service web account, you can now download invoices for each team member with an active subscription from the Invoices tab.

Generate Usage Report for Your Team: Generate a usage report that shows how many credits each team member has consumed. This helps you monitor and manage your team's credit usage more effectively.

GPT-4.1 AI Models: Access the latest OpenAI GPT-4.1 family of AI models (GPT-4.1, GPT-4.1 Mini, and GPT-4.1 Nano) in the Positron service. Select GPT-4.1 for complex tasks, GPT-4.1 Mini for faster responses, or GPT-4.1 Nano for quick, simple queries.

Team Subscription Management: If you are using the non-Enterprise Oxygen AI Positron Assistant connecting to the Oxygen AI Positron Service, you can now organize users into a Team, allowing you to purchase and manage subscriptions for all team members in one place. As a team owner, you can handle renewals, cancellations, and member changes centrally, and view usage reports for each member to monitor subscription activity.

Reasoning Models in AI Positron Service: Access powerful reasoning models from Open AI, o3 , o1, o4-mini, and o3-mini, in the AI Positron Assistant when connecting to Oxygen AI Positron Service. These models help you solve complex problems across various domains, enhancing your problem-solving capabilities.

Intelligent Agents: Rely on intelligent agents to automatically expand your DITA topic drafts, split large topics into smaller ones, create new DITA topics, and fix validation problems. These tools help you manage and improve your DITA content with less manual effort.

GPT-4o-mini AI Model: The GPT-4o-mini AI model was added to the list of available models.

New AI actions: Leverage AI to proofread your content, resolve review comments, enhance the structure of your documents, and add structured content more efficiently. These actions help streamline your editing and review process.

Vision Support: With the newly added vision support, the AI can now read and interpret images, thus supporting more use cases such as generating a documentation draft by also considering the content of some images or suggesting changes to the content of a topic based on updated images.

GPT-4o Model: GPT-4o was added to the list of available models.

New AI actions:

• Available for XSLT, Schematron, XSD, CSS, XQuery, JSON, and JSON Schema documents, you now have a set of pre-defined AI actions to help you understand, discuss, and generate code directly in your workflow.
• A dedicated AI-powered action documents code in XSLT, XSD, and Schematron files.
• You can also generate alternative text for images to improve accessibility.

Subscriptions: Subscription plans were implemented to provide an easy way for users to purchase additional credits. There are 3 different subscription options to choose from, depending on your usage. The Explorer option is good for covering daily tasks when predominantly using GPT-3.5, the Professional option is great for a balanced use of GPT-3.5 and GPT-4, while the Expert option is ideal for intensive use of GPT-4.

AI-powered predefined actions that enable you to:

• Generate content such as DITA topics, document fragments, short descriptions, and index terms.
• Improve existing content in terms of grammar, readability, and the use of active voice.
• Get various insights to understand how readable the content is and how it responds to questions.
• Translate to various languages while preserving the XML structure.
• Write better marketing content with support for generating press releases, marketing posts, applying marketing frameworks, and for enhancing search engine optimization.