13 releases covered on ThursdAI · cursor.com ↗
Cursor launches Composer 2.5 with Opus-class coding at much lower cost
Cursor launched Composer 2.5, a coding model continued-trained on top of Kimi K2.5 (with permission) that delivers Opus-class coding performance at much lower cost. The crew noted Cursor is 'absolutely back' with strong pre-training and post-training teams, and that training now runs partly on the Colossus supercomputer.
Cursor launches SDK exposing the runtime that powers the IDE
Cursor launched an SDK that exposes the same runtime, harness, and models that power the Cursor IDE, making the Cursor agent embeddable in any product. The Cursor Agent + GPT-5.5 combo also topped WolfBench's Terminal-Bench 2.0 leaderboard this week.
Cursor ships remote agents and a code review agent
Cursor launched remote agents plus a code review agent that the company says catches 78% of issues before merge. Mentioned in the week's tools and agentic-engineering roundup.
Cursor 3 ships as agent-first rebuild, dropping the VS Code fork
Cursor released Cursor 3, a ground-up agent-first rebuild that is no longer a VS Code fork and supports parallel cloud and local agents. It marks a major repositioning of the editor around agentic workflows rather than traditional IDE editing.
Cursor Composer 2 beats Opus 4.6 on TerminalBench at a tenth of the price
Cursor launched Composer 2, its first proprietary model that genuinely competes with frontier labs. It scores 61% on TerminalBench (beating Opus 4.6) at $0.50/M input tokens, cheaper than GPT-5.4 Mini and 10x cheaper than Opus, running at 300+ tokens/sec. A fast variant costs 3x more for the same intelligence, kicking off a new 'fast mode' pricing trend where you pay a premium for speed rather than capability.
Cursor joins ACP registry and goes live in JetBrains IDEs
Cursor joined the Agent Communication Protocol (ACP) registry and is now live inside JetBrains IDEs. The move is a cross-ecosystem win for ACP, the emerging open standard that lets any AI agent plug into any editor.
Cursor launches cloud agents
Cursor launched cloud agents, moving agentic coding work off the local machine into remote, async sessions. The panel highlighted Cursor's cloud agents and UI demos as important progress for frontend development workflows.
Cursor 2 and the Composer model level up IDE agents
Cursor shipped Cursor 2 along with its Composer model in October, leveling up in-IDE agentic coding. It capped a year in which Cursor's sales exploded on the back of Claude 3.7 and the vibe coding wave.
Cursor offers GPT-5.1-Codex-Max for free through Dec 11
Cursor made OpenAI's GPT-5.1-Codex-Max available free to users through December 11, alongside a blog post on its codex model harness. The promotion gives developers no-cost access to a frontier coding model inside the editor.
Cursor adds a built-in browser inside the IDE
Cursor added an in-IDE browser, letting developers preview and interact with their running app without leaving the editor. The panel called out how performant the implementation is, tightening the loop between agentic code edits and visual verification.
Cursor 2.0 ships with Composer, its own 4x-faster coding model
Cursor released version 2.0 of its AI code editor alongside Composer, a new in-house coding model claimed to be about 4x faster. The launch came up as evidence that developer products are being rebuilt agent-first, with speed and orchestration as the new battleground.
Cursor rolls out coding agents on web, mobile, and Slack
Cursor launched its AI coding agents on web and mobile with Slack integration, extending code agents beyond the editor window into ambient, always-on workflow software. The launch landed the same week Cursor poached key creators of Claude Code, making it product-strategy news as much as HR news.
Cursor ships Claude 3.7 MAX mode
Cursor shipped Claude 3.7 MAX, a mode giving the agent the full context window and higher tool-call limits with Claude 3.7 Sonnet. It is aimed at harder, longer coding tasks at premium usage-based pricing.
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