Cursor 2.5 ships background agents — IDE-integrated long-horizon coding agent runs in cloud worker pool, persists across editor sessions, ships with Claude Opus 4.7 and GPT-5.2 routing
Cursor released version 2.5 on May 28 with the new background-agent capability — an IDE-integrated long-horizon coding agent that runs in a cloud worker pool, persists across editor sessions, and routes between Claude Opus 4.7 and GPT-5.2 based on task profile. The release brings the persistent-agent pattern that Google Spark and OpenAI ChatGPT Agent Mode established into the developer-tooling segment.
The background-agent capability is the substantive piece. Cursor's prior agent integration — through 2024-2025 — ran the agent inside the editor session, with the agent's state and work bounded by the editor's lifecycle. Cursor 2.5 moves the agent execution to a cloud worker pool, with the agent persisting across editor sessions and continuing long-horizon coding tasks (multi-file refactors, dependency upgrades, bug triage across large codebases) while the developer works elsewhere or has the editor closed. The model routing — between Claude Opus 4.7 and GPT-5.2 — is dynamic based on task profile, with the IDE selecting the model that performs best on the specific task class.
The competitive-tooling context is the agent-IDE convergence. Replit's enterprise agent tier release the same day extends the agent-IDE pattern into the browser-based development environment. OpenAI's ChatGPT Agent Mode priority tier is the broader-consumer parallel. The three releases together establish that the agent-IDE pattern is consolidating on the persistent-execution and cloud-worker-pool architecture. For developer tooling, the practical shift is that the editor is no longer the boundary of the agent's work — the agent operates as a continuous-runtime worker that the editor surface integrates with, rather than the editor being the agent's host environment.
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