Junie CLI adds Claude Opus 5.5, GPT-6 Sol and Luna, and Grok 4.7

Junie Eco mode hands implementation to a lower-cost model

Eco mode uses the selected model to plan and a cheaper model to implement and test; JetBrains reports about half the model cost per task in internal benchmarks. It is generally available in Junie CLI 26.10.20 and later. Date is the post's publication date from the page metadata.

Junie Local supports NVIDIA RTX Spark and its Windows support becomes stable

Junie Local, JetBrains' free on-device coding agent, runs on NVIDIA RTX Spark machines, and Windows support for 24 GB RTX cards moves from experimental to stable.

Junie coding agent leaves beta

JetBrains declared Junie generally available across the IDE and terminal.

OpenCode 2.2 adds Desktop plugins and a refreshed desktop app

OpenCode 2.2.0 lets users create, install and share experimental Desktop plugins, refreshes the desktop app, and removes the OpenCode GitHub Action.

GPT-6.1 Terra becomes available in Codex

GPT-6.1 Terra, a fast model with image understanding and computer use, becomes available in Codex and ChatGPT Work on Plus, Pro, Business, Enterprise and Edu plans.

GPT-5.5 retires from Codex for ChatGPT sign-ins

GPT-5.5 is removed from Codex for users signed in with ChatGPT; API-key sessions and the OpenAI API are unaffected, and users are pointed to GPT-6.1 Sol.

GPT-6.1 Sol Ultrafast arrives in Codex for Pro $500 and eligible Enterprise and Edu

An Ultrafast mode speeds up GPT-6.1 Sol token generation in Codex, limited to the Pro $500 plan and eligible Enterprise and Edu plans (off by default for Enterprise).