GPT-6.1 Terra announced
A model for visual reasoning, computer use and writing. OpenAI positions Terra for frequent, well-defined work such as reading documents and operating software.
Changes
The releases and updates worth knowing about.
Short summaries of official announcements, newest first. When a source gives only a month, it appears after dated entries in that month, without an invented day. Dates belong to the announcements; source review dates belong to Rising. Preview access and phased rollouts are called out in the entries.
16 reviewed entries · Sources reviewed · Browse models
Claude Duet opens a research preview
Claude Duet can monitor connected work apps, prepare a morning brief and continue assigned tasks on a cloud computer. The initial preview uses a waitlist for US Pro and Max subscribers and shares their existing usage limits.
Voxtral 3 announced
A speech model family and voice-agent SDK combining transcription, speech generation and tool calls. Separate models handle listening and speaking so teams can choose their reasoning model.
Gemini 4 Argon reaches the Gemini app
Google expanded Argon access to AI Pro and Ultra subscribers in the Gemini app. This follows the restricted initial rollout and is a change in access, rather than a separate model release.
Muse Wonder family announced
Muse Wonder and Muse Wonder Full are designed for tasks that span multiple steps, with memory across conversations. The two variants have different access paths.
Claude adds live dashboards and animated explainers
Dashboards entered beta on paid plans with visible chart queries and refresh times. Motion entered beta for Team and Enterprise, while Docs, Slides and Design left beta and became available on every plan, including Free.
Claude Haiku 5.5 announced
A smaller Claude model for classification, summaries, routing and subagent work. Haiku now supports adjustable effort and adaptive thinking for tasks with different latency budgets.
EmbeddingGemma 2 announced
A compact model that maps different media into a shared embedding space for local search and retrieval. Text, vision and audio components can be selected to fit the application.
Mistral Large 4 enters public preview
A multimodal model preview, also called Le Chonk, for coding, agent workflows and professional tasks. Mistral announced a later weight release; the preview alone does not establish downloadable weights.
Gemini 4 Argon announced
A Gemini model designed for long tasks in software engineering and professional work. Google introduced it with a phased rollout, then expanded Gemini app access in October.
GPT-6.1 Sol announced
A general model for coding, computer use and professional work. OpenAI positions Sol between its flagship and smaller models, with configurable reasoning effort.
Claude Sonnet 5.5 announced
A Claude model for scoped coding tasks and everyday documents, slides and spreadsheets. Anthropic presents it as a faster complement to Opus for iterative work.
Claude Opus 5.5 announced
A Claude model for demanding work across large codebases and long tasks. Its release changes thinking behavior and integration requirements, which developers should check before migrating.
GPT-6 Sol and Luna announced
Two GPT-6 models aimed at different workload sizes and cost budgets. Sol handles demanding everyday tasks, while Luna is the smaller option for faster iteration and larger volumes.
GPT-6 Astra announced
A GPT-6 model for difficult software, research and professional tasks that span multiple steps. It combines reasoning with browser and computer interaction; tools and execution environments determine what an application can do.
Claude Fable 5.1 and Mythos 5.1 announced
Two access configurations of the same underlying model. Fable is generally available; Mythos uses different safeguards for approved specialist work. The official announcement gives a month without an exact day.