Head-to-Head Comparison · Alternative to Codex · ✨ ai assistants
Codex vs OpenCode
Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage. Here is how OpenCode ($0/mo open source) stacks up against Codex ($15/mo) across cost, hosting, data privacy, and real-world trade-offs.
OpenCode is a verified MIT-licensed open-source replacement for Codex. Switching from Codex ($15/mo) saves $180/yr per solo seat, or $900/yr for a 5-person team. Deployment: Runs on Local.
The catch: It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.
Codex vs OpenCode Specifications
facts verified 2026-11-07
| Dimension | Codex (Paid) | OpenCode (Replacement) |
|---|---|---|
| Monthly Price | $15 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $180 / yr | $0 / yr (Save $180) |
| 1-Year Cost (5 seats) | $900 / yr | $0 / yr (Save $900) |
| 1-Year Cost (10 seats) | $1,800 / yr | $0 / yr (Save $1,800) |
| Source & License | Proprietary SaaS | open source MIT |
| Where It Runs | Vendor Cloud | Local (on your machine) |
| Platforms | Web / Cloud | desktopclione-click install |
| GitHub Stars | — | ★ 225k (active nov 2026) |
Deep Dive: Switching from Codex to OpenCode
Trade-offs, installation & data architecture
What you trade away
It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.
How to deploy OpenCode
Install script, Homebrew or npm
What it takes to run
You bring and pay for provider API keys, one account per vendor
Where your data lives
Source files stay in the working repo; credentials and session data live under the local OpenCode data directory
Why fork OpenCode instead of vibe-coding a Codex clone?
Instead of paying recurring SaaS fees for Codex or rebuilding it from scratch, deploy one of the 23 battle-tested open-source alternatives like OpenCode.
Codex vs OpenCode FAQ
Is OpenCode a good free alternative to Codex?+
Yes. OpenCode is a verified open-source (MIT) replacement for Codex. Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.
What is the catch when switching from Codex to OpenCode?+
It gives you one agent with tools rather than an orchestrator that splits a task across research, coding, browser and review workers.
How much do you save switching from Codex to OpenCode?+
Codex costs $15/mo ($180/yr) per seat, whereas OpenCode is $0/mo. Switching saves $180/yr for a solo user, $900/yr for a 5-person team, and $1,800/yr for a 10-person team.
How do I install or self-host OpenCode instead of Codex?+
Install: Install script, Homebrew or npm. Setup: You bring and pay for provider API keys, one account per vendor
