Background AI Agents Compared

Agents you hand a task to and come back later. Facts from official announcements/docs (verified 2026-10-23); sources and GitHub stars/releases re-checked automatically (last check 2026-10-23 10:54 UTC).

AgentWhat it isStatusPricingPlatformOpen-source signalsSource
Claude Duet
Anthropic
Proactive work agent (cloud VM + browser)Research preview, waitlist (US Pro & Max) — announced 2026-10-21Included in Claude Pro/Max; uses plan limitsiOS, Android, claude.aiClosed sourceOfficial
✅ source checks pass
Cursor Cloud Agents
Anysphere
Background coding agents in remote environmentsAvailableUses your Cursor plan's usage at model ratesCursor app, webClosed sourceOfficial
✅ source checks pass
Gemini API CLI (gemini-api)
Google
Shell tool giving any agent Gemini models + managed agents (e.g. Deep Research)Experimental preview (v0.4.x), released 2026-10-19Free CLI; Gemini API usage billed per your API keymacOS, Linux, Windowsgoogle-gemini/gemini-api-cli
★ 181
Latest: 0.4.3 stable (2026-10-19)
Official
✅ source checks pass
Gemini CLI
Google
Open-source terminal coding agentAvailableFree tier with Google account; or API keyTerminalgoogle-gemini/gemini-cli
★ 107,558
Latest: 0.65.0 stable (2026-10-20)
Official
✅ source checks pass
GitHub Copilot cloud agent
GitHub
Assign issues → agent opens a pull requestAvailableCopilot Pro ($15/mo) and up; uses AI creditsGitHub.com, IDEs, CLIClosed sourceOfficial
✅ source checks pass
Jules
Google
Async coding agent (clones repo to cloud VM, opens PRs)AvailableFree 15 tasks/day; more with Google AI Pro/UltraWeb + GitHubClosed sourceOfficial
✅ source checks pass
OpenAI Codex (cloud tasks)
OpenAI
Coding agent: cloud tasks, CLI, IDEGenerally availableIncluded in ChatGPT Free/Go/Plus/Pro/Business; or API keyWeb, CLI, IDE extension, iOSopenai/codex
★ 130,560
Latest: 0.164.0 stable (2026-10-23)
Official
✅ source checks pass

Listed alphabetically — this is a comparison, not a ranking. Related: AI subscription prices · coding agent release tracker · AI coding agents ranking.

Independence: no affiliate links or sponsors affect this page; order is alphabetical by vendor/name, not a ranking. We did not hands-on test these products — facts come from official pages only.

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