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SPECIFICTION
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Jules vs OpenCode

Jules

jules.google

OpenCode

opencode.ai

Side by side

FigureJulesOpenCode
Price fromFree$10/mo
Free planYesYes
Free trial—Yes
Open source—Yes
WebYesYes
Windows—Yes
macOS—Yes
LinuxYesYes
iOS—Yes
APIYesYes
Self-hosted—Yes
Plans published39
Spec score · AI Coding Assistants8.3 (#47)9.3 (#6)
Spec score · Ai Agents Assistants8.1 (#18)8.9 (#10)
Spec score · AI Code Generators8.1 (#40)8.9 (#11)
Coding agentYesYes
Chat assistanceYesYes
Codebase indexingYesYes
Free planYesYes
Supported IDEsNo IDEs explicitly listed; web app and CLI are documentedVisual Studio Code,Cursor,Zed,Windsurf,VSCodium
Terminal accessYesYes
What it doesJules is an autonomous coding agent for fixing bugs, adding documentation, updating apps, and building features.OpenCode is an open-source AI coding agent for writing and running code from a terminal, desktop app or IDE extension.

Plans

Jules

  • JulesFree
  • Jules in ProPriced on request
  • Jules in UltraPriced on request

Jules pricing →

OpenCode

  • OpenCode Go$10 a month
  • Free OpenCodeFree
  • OpenCodeFree
  • Go$10 a month
  • OpenCode Zen$20, paid once
  • Go Plus$40 a month
  • EnterprisePriced on request
  • OpenCode EnterprisePriced on request
  • ZenPriced on request

OpenCode pricing →

In their own words

Jules

Jules has no write-up on Specifiction yet; its figures are above.

Visit jules.google

OpenCode

OpenCode is an open source AI coding agent for working in a terminal, IDE, or desktop app. It provides chat assistance, agent mode, terminal access, and codebase indexing, and supports more than 75 LLM providers as well as local models. The software can load language servers for the selected model and coordinate multiple agents on one project. Editor extensions are listed for Visual Studio Code, Cursor, Zed, Windsurf, and VSCodium; GitHub and GitLab integrations are also available. Users can share session links, while conversations are private by default. OpenCode says it does not store code or context data. The free plan includes the open source agent and free models, or users can connect a model provider. OpenCode Go costs $10 a month and lists usage limits of $12 per 5 hours, $30 per week, and $60 per month. The site recommends WSL for Windows users for performance and full feature compatibility.

Visit opencode.ai