SupaKeeper Plain comparisons of AI coding tools

AgentHydra vs OpenCode in 2026

AgentHydra and OpenCode compared on what each does, what each costs, and what to check before you pick one to manage your coding sessions.

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AgentHydra is a free, open-source session manager that lists Claude, Codex and OpenCode sessions and shows costs; OpenCode's details are not published here. [1]

OptionWhat its sources say it doesCostAccount or install
OpenCodenot published in the sources used herenot publishednot published
AgentHydraShows Claude Code, Codex and OpenCode sessions on your machine in one list you can search, updated while they run; lets you type a reply into a Claude chat; splits a job across several Claude Code sessions; shows estimated costs at API list prices by day, model, project and account; pairs each failed command with the fix; lists each account with its plan and quota; lets your AI agents check which account they use and how much quota remains; bundles a task and its code for a ChatGPT handoff; prints cost numbers in JSON from the command line [1] [1] [1] [1] [1] [1] [1] [1] [1]free, no account or subscription [1]install on Windows with a one-line command pasted into a terminal, a ready-made build, or from source; desktop tray app runs only on Windows, macOS and Linux builds not verified [1] [1]

The short answer

AgentHydra shows Claude Code, Codex and OpenCode sessions in one searchable list, updated live while they run [1]. It shows estimated costs at the published API list prices, split by day, model, project and account [1]. It lets you type a reply into a Claude chat [1]. It splits a job across several Claude Code sessions [1]. The facts available here do not describe what OpenCode does. The two tools are not documented here in the same depth: AgentHydra's claims cover watching and managing coding sessions and their cost, while the facts used for this page describe nothing about OpenCode.

What OpenCode is built for

This page's category lists OpenCode as a coding session manager, but the facts used here contain no further specifics about what it does for a developer. The facts used here do not describe OpenCode's features. Check OpenCode's own documentation for what it offers and how it is set up and used day to day.

What AgentHydra is built for

AgentHydra is made by the team that publishes this site. It shows Claude Code, Codex and OpenCode sessions on your machine in one list you can search, updated live while they run [1]. It lets you type a reply into a Claude chat [1]. It moves a Claude chat, history included, to another of your accounts [1]. It splits a job across several Claude Code sessions and moves part of it to another account when one runs low on usage [1]. It shows estimated costs at the published API list prices, split by day, model, project and account [1]. It pairs each failed shell command with the command that fixed it, and can save those fixes as notes your AI tools read [1]. It lists each Claude and Codex account with its plan and 5-hour and weekly quota, and can open, focus, quit, create and delete Claude Desktop instances [1]. It lets your AI agents check which account they are using and how much quota remains [1]. It bundles a task and its code into one text file, leaves out common secret files, and copies a prompt so you can paste it into ChatGPT yourself [1]. It can also print those cost numbers from the command line in JSON, a plain data format other tools can read [1]. It is free, with no account or subscription [1]. It is open source under the MIT License [1]. The tray app needs Windows; macOS and Linux builds exist but have not been verified [1]. On Windows, install with a one-line command pasted into a terminal, download a ready-made build, or run it from source [1].

Pricing and fees

AgentHydra is free, with no account or subscription required [1]. It is open source under the MIT License [1]. The facts given here do not state a price for OpenCode, so it is not published here. Neither source describes any account, trial or discount for either tool, so none is stated here. The only price given in the claims or facts for either tool is free for AgentHydra [1]. If you need the cost of OpenCode for your own use, check its own pages, since the facts here do not state one.

Setting it up and daily use

On Windows, install AgentHydra with a one-line command pasted into a terminal, download a ready-made build, or run it from source [1]. The tray app needs Windows; macOS and Linux builds exist but have not been verified [1]. Once installed, it shows the Claude Code, Codex and OpenCode sessions running on your machine [1]. You can type a reply into a Claude session's own desktop chat [1]. You can view estimated costs at the published API list prices, split by day, model, project and account [1]. The facts available here do not cover setup for OpenCode. The facts here say nothing more about setup or routine use for either tool, so check the tools' own pages for anything further.

Things to check before you choose

Ask whether you need one list of Claude Code, Codex and OpenCode sessions, since AgentHydra shows them in one searchable list [1]. Ask if you want cost estimates at API list prices by day, model, project and account, which AgentHydra shows [1]. Ask whether you need to split a job across several Claude Code sessions, which AgentHydra describes [1]. Ask which operating systems you require, noting that the desktop tray app runs on Windows and its macOS and Linux builds have not been verified [1]. Ask what pricing model each tool uses: AgentHydra is free [1], and OpenCode's price is not published in the facts here.

How to choose

If you want one list of your Claude Code, Codex and OpenCode sessions, updated while they run, AgentHydra shows that [1]. If you need to reply to a Claude chat, AgentHydra lets you do that [1]. If cost tracking matters, AgentHydra shows estimated costs at API list prices, split by day, model, project and account [1]. If you split a job across several Claude Code sessions and one account runs low on usage, AgentHydra moves part of the work to another account [1]. If you want a free tool with no account, AgentHydra is free with no account or subscription and is open source under the MIT License [1] [1]; OpenCode's price is not published in the facts here. If your decision depends on features not listed here, check OpenCode's own documentation, as the sources used for this page do not cover OpenCode's features.

Frequently asked questions

Is AgentHydra free to use?

AgentHydra is free, with no account or subscription required [1]. It is released under the MIT License [1]. AgentHydra has no paid plan listed in its sources. It shows estimated costs at API list prices, split by day, model, project and account [1].

What does OpenCode cost?

The facts given here do not state a price for OpenCode, so its pricing model is not published here. Check OpenCode's own pages if you need to know what it charges. The facts here do not describe OpenCode's features.

Can AgentHydra show API cost details?

Yes. It shows estimated costs at API list prices, split by day, model, project and account [1]. It can also print those numbers as JSON from the command line [1]. The figures are API list-price estimates, not exact billed costs.

How does AgentHydra manage multiple Claude sessions?

AgentHydra lists each Claude and Codex account with its plan and 5-hour and weekly quota, and can open and close a Claude desktop window for each account [1]. Because each account shows its plan and quota, you can see which one has room left before you start a session.

What operating systems does AgentHydra support?

The desktop tray app runs only on Windows [1]. macOS and Linux builds exist but have not been verified [1]. Installation on Windows uses a one-line command pasted into a terminal, a ready-made build, or running from source [1].

Free, with no account or subscription. [1]

Try AgentHydra

Sources

  1. AgentHydra's own description of itself (the product of this site's publisher)

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