Skip to content

Side-by-side comparison · Coding & Dev Tools

OpenAI Codex vs OpenCode

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

OpenAI Codex

4.2

From $8/mo

OpenCode

3.8

From Pay as you go

Comparing 2 tools. Add one more if you like.

At a glance

Best overallEasiest to use

Pick it if: ChatGPT subscribers who want a coding agent without paying for a second subscription.

Best value

Pick it if: Developers and tinkerers who want a capable coding agent without a big subscription, or who want to choose their own models.

OpenAI Codex scores highest overall, but OpenCode gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeOpenAI CodexOpenCode
In one lineOpenAI's coding agent. Hand it a task and it works away while you do other things.A free, open-source coding agent that works with almost any AI model, including free ones.
Pricing modelFreemiumOpen source
Starting price$8/moPay as you go
Free plan Yes Yes
Works with Claude Code No Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeOpenAI CodexOpenCode
Overall rating4.2Winner3.8
Ease of useHow quickly someone non-technical gets value from it.
3.5
3.0
FeaturesHow completely it covers the job it's built for, and how well the pieces fit together.
4.5
4.5
Output qualityHow good the results are before you fix them.
4.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.5
5.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeOpenAI CodexOpenCode
Access & platform
Free plan Yes Yes
Mobile app Yes No
Desktop app Yes Yes
Browser extension No No
API access Yes Yes
Teams & business
Team workspace Yes No
Enterprise plan or SSO Yes Yes
Connects to other apps Yes Yes
Open source or self-hosted Yes Yes
AI abilities
Works with your files Yes Yes
Understands images Yes Yes
Makes images No No
Makes video No No
Writes code Yes Yes
Runs agents or automations Yes Yes
Learns your brand or style Yes–
Works in many languages Yes Yes
Capabilities score14/ 1711/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeOpenAI CodexOpenCode
Plans

Free

Free

A quick look at what it can do.

OpenCode

Free

Anyone with their own model access, or happy with the free models.

Go

$8/mo

Occasional light tasks.

Zen

Pay as you go, from a $20 top-up

People who want top models without a subscription.

PlusOur pick

$20/mo

Anyone who already pays for ChatGPT.

GoOur pick

$10/mo

Most people who want to code daily on a budget.

Pro

From $100/mo

Developers who hit the Plus limits.

Go Plus

$40/mo

Heavy users who hit the Go limits.

Business

$20/user/mo billed yearly, or $25 monthly

Teams of 2 or more.

Enterprise

Custom

Companies rolling it out to a team.

Enterprise

Custom

Large organisations.

Which plan to pickIf you already have ChatGPT Plus, you have Codex: just try it. If you are choosing between this and Claude Code with no existing subscription, Plus at $20 and Claude Pro at $20 cost the same, so pick whichever chat assistant you prefer. If you outgrow Plus, Pro starts at $100 and has no five-hour limit for now. The $200 tier gives new subscribers less usage than it used to, and Ultrafast mode is only on the $500 tier.Start free. If the free models feel thin, OpenCode Go at $10 a month is the best-value upgrade in this category. Only add Zen or a Claude or OpenAI API key when you need a frontier model for a hard job, and set a spending cap when you do.

Key features

AttributeOpenAI CodexOpenCode
Standout features
  • Cloud tasks
  • Desktop app and CLI
  • Start from your phone
  • Automatic code review
  • AGENTS.md
  • Open source CLI
  • Any model
  • Free models included
  • Terminal, desktop and editor
  • Background agents
  • Go and Zen model plans
  • Plugins and SDK

Pros and cons

AttributeOpenAI CodexOpenCode
Pros
  • Included with every ChatGPT plan, so many people already have it
  • Cloud tasks let you start work from anywhere and come back later
  • Strong on tough, multi-file coding jobs
  • The CLI is open source and works with an API key
  • Free and open source, with free models to start
  • Works with almost any model, including local ones
  • OpenCode Go at $10 a month is very cheap for real daily use
  • Polished terminal and desktop app that many prefer to Claude Code's
  • Fast-moving project with a huge community
Cons
  • Five-hour and weekly limits bite on Plus if you use it seriously
  • Cloud tasks use more of your allowance than local ones
  • It asks fewer questions than Claude Code before changing things
  • Model names and limits change often, which makes it hard to plan costs
  • The $200 Pro tier now gives new subscribers less usage than before
  • October 2026 Console breach exposed some saved API keys, and users reported surprise provider charges
  • Version 2.0 briefly stopped asking permission before file edits, and broke older plugins
  • Claude Pro and Max subscriptions can't be used, so Claude needs a paid API key
  • Free models get blocked on some networks for abuse, and limits shift with promotions
  • Terminal-first, so less friendly for non-developers

Who each one is for

AttributeOpenAI CodexOpenCode
Best for
  • Background tasks in the cloud
  • Starting a task from your phone
  • Developers already on ChatGPT Plus
  • Coding in the terminal
  • Coding with free or low-cost models
  • Using any AI provider, including local models
  • A Claude Code-style agent without a subscription
  • Developers who like to customise their tools
You'll find it used by
  • ChatGPT subscribers
  • Developers
  • Startup teams
  • Solo founders
  • Developers
  • Open-source fans
  • Students
  • Budget-conscious founders

Questions people ask

Which is better, OpenAI Codex or OpenCode?

OpenAI Codex scores highest overall in our ratings (OpenAI Codex 4.2/5 and OpenCode 3.8/5). OpenAI Codex is best for background tasks in the cloud and starting a task from your phone. OpenCode is best for coding with free or low-cost models and using any AI provider, including local models.

Which is cheaper, OpenAI Codex or OpenCode?

OpenAI Codex: There's a free plan, and paid plans start at $8/mo. OpenCode: There's a free plan, and paid plans start at Pay as you go.

Which is easier to use, OpenAI Codex or OpenCode?

OpenAI Codex rates highest for ease of use in our scores. ChatGPT subscribers who want a coding agent without paying for a second subscription.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

Swap in another tool

More tools from Coding & Dev Tools in the library.