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Side-by-side comparison · Coding & Dev Tools

OpenAI Codex vs OpenCode vs Warp

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

Warp

4.1

From $20/mo

Comparing 3 tools, the maximum.

At a glance

Best overall

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.

Warp4.1
Easiest to use

Pick it if: Anyone who has to use the terminal but never wanted to learn it.

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 CodexOpenCodeWarp
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.A modern terminal where you can type what you want in plain English instead of commands.
Pricing modelFreemiumOpen sourceFreemium
Starting price$8/moPay as you go$20/mo
Free plan Yes Yes Yes
Works with Claude Code No Yes No

Rating breakdown

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

AttributeOpenAI CodexOpenCodeWarp
Overall rating4.2Winner3.84.1
Ease of useHow quickly someone non-technical gets value from it.
3.5
3.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.5
4.0
Output qualityHow good the results are before you fix them.
4.5
3.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.5
5.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.0
4.5

Feature comparison

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

AttributeOpenAI CodexOpenCodeWarp
Access & platform
Free plan Yes Yes Yes
Mobile app Yes No No
Desktop app Yes Yes Yes
Browser extension No No No
API access Yes Yes–
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted Yes Yes No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes–
Makes images No No No
Makes video No No No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes– Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 1711/ 1710/ 17

Pricing

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

AttributeOpenAI CodexOpenCodeWarp
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.

FreeOur pick

Free

Everyone who just wants a better terminal.

Go

$8/mo

Occasional light tasks.

Zen

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

People who want top models without a subscription.

Build

$20/mo, or $18/mo billed yearly

People who lean on the Warp agent daily.

PlusOur pick

$20/mo

Anyone who already pays for ChatGPT.

GoOur pick

$10/mo

Most people who want to code daily on a budget.

Max

$200/mo, or $180/mo billed yearly

Heavy agent users.

Pro

From $100/mo

Developers who hit the Plus limits.

Go Plus

$40/mo

Heavy users who hit the Go limits.

Business

$50/user/mo, or $45/user/mo billed yearly

Teams that need SSO and usage metrics.

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.

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.Stay on Free. The terminal is the product, and you can run Claude Code inside it on your Claude subscription without paying Warp anything. Only buy Build if you find yourself using Warp's own agent more than Claude Code.

Key features

AttributeOpenAI CodexOpenCodeWarp
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
  • Plain-English commands
  • A proper text editor for commands
  • Blocks and searchable history
  • Warp agent
  • Home for other agents
  • Shared workflows

Pros and cons

AttributeOpenAI CodexOpenCodeWarp
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
  • The best-looking and most forgiving terminal available
  • Plain-English commands remove the biggest barrier for beginners
  • Free for the terminal itself, with your own AI keys allowed
  • Fast, and runs on Mac, Windows and Linux
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
  • Its own agent is a step behind Claude Code and Codex
  • Metered agent usage on paid plans runs out faster than you expect
  • You need an account to use it, which some developers dislike
  • Not an editor, so you still need another tool to browse files

Who each one is for

AttributeOpenAI CodexOpenCodeWarp
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
  • A nicer home for Claude Code
  • Plain-English commands
  • Searchable command history
  • Sharing commands with your team
You'll find it used by
  • ChatGPT subscribers
  • Developers
  • Startup teams
  • Solo founders
  • Developers
  • Open-source fans
  • Students
  • Budget-conscious founders
  • Developers
  • Ops teams
  • Terminal beginners
  • Founders

Questions people ask

Which is better, OpenAI Codex, OpenCode or Warp?

OpenAI Codex scores highest overall in our ratings (OpenAI Codex 4.2/5, OpenCode 3.8/5 and Warp 4.1/5). 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. Warp is best for A nicer home for Claude Code and Plain-English commands.

Which is cheaper, OpenAI Codex, OpenCode or Warp?

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. Warp: There's a free plan, and paid plans start at $20/mo.

Which is easier to use, OpenAI Codex, OpenCode or Warp?

Warp rates highest for ease of use in our scores. Anyone who has to use the terminal but never wanted to learn it.

How we compare

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

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