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Side-by-side comparison · Coding & Dev Tools

Claude Code vs Factory vs OpenAI Codex

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

Claude Code

4.4

From $20/mo

Factory

3.8

From $20/mo

OpenAI Codex

4.2

From $8/mo

Comparing 3 tools, the maximum.

At a glance

Best overall

Pick it if: Anyone building software, from first-timers to senior engineers, who wants an AI that does the work itself.

Pick it if: Software teams that want AI agents to take tickets off the backlog and come back with finished pull requests.

Best value

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

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

Overview

AttributeClaude CodeFactoryOpenAI Codex
In one lineAn AI agent that works inside your project: it reads, writes and runs the code for you.AI coding agents called Droids that take on whole engineering tasks from your backlog.OpenAI's coding agent. Hand it a task and it works away while you do other things.
Pricing modelPaidPaidFreemium
Starting price$20/mo$20/mo$8/mo
Free plan No No Yes
Works with Claude Code Yes Yes No

Rating breakdown

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

AttributeClaude CodeFactoryOpenAI Codex
Overall rating4.4Winner3.84.2
Ease of useHow quickly someone non-technical gets value from it.
3.5
3.0
3.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
5.0
4.5
4.5
Output qualityHow good the results are before you fix them.
5.0
4.0
4.5
Value for moneyWhat you get for the price, including the free plan.
4.0
3.5
4.5
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.0
4.0

Feature comparison

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

AttributeClaude CodeFactoryOpenAI Codex
Access & platform
Free plan No No Yes
Mobile app Yes– Yes
Desktop app Yes Yes Yes
Browser extension No– No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No Yes
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
Capabilities score12/ 178/ 1714/ 17

Pricing

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

AttributeClaude CodeFactoryOpenAI Codex
Plans

ProOur pick

$20/mo, or $17/mo billed yearly

Trying Claude Code and light daily use.

Pro

$20/mo

A developer trying agents day to day.

Free

Free

A quick look at what it can do.

Team

From $20/seat/mo billed yearly, or $25 monthly

Businesses with 2 to 150 people who want central billing.

PlusOur pick

$100/mo

Developers who lean on agents all day.

Go

$8/mo

Occasional light tasks.

Enterprise

$20/seat/mo billed yearly, 20-seat minimum

Larger companies with compliance needs.

Max

$200/mo

Heavy individual users.

PlusOur pick

$20/mo

Anyone who already pays for ChatGPT.

Max

From $100/mo

Anyone running Claude Code for hours a day.

Teams

$60/mo per team plus $40/seat

Small teams up to 10 people.

Pro

From $100/mo

Developers who hit the Plus limits.

API (pay as you go)

Usage based

Teams who want to pay only for what they use.

Business / Enterprise

Custom

Larger companies with security requirements.

Business

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

Teams of 2 or more.

Enterprise

Custom

Large organisations.

Which plan to pickStart on Pro. It is enough to build a small site or tool in evenings and weekends. If you hit the limit most days, Max 5x is the next step; it costs five times as much but usually works out cheaper than paying for the API directly. Max also lets you spend up to half your weekly limit on Fable, which Pro only gets through paid credits.Try Pro for a month to see if the agents suit your codebase. If you want Droids working in the background while you do other things, you need Plus.If 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.

Key features

AttributeClaude CodeFactoryOpenAI Codex
Standout features
  • Works in your project
  • Plain-English tasks
  • Runs where you work
  • CLAUDE.md and Skills
  • MCP connections
  • Subagents and background work
  • Droids
  • Start work from anywhere
  • Droid Computers
  • Missions and automations
  • Choice of models
  • Public API and SDK
  • Cloud tasks
  • Desktop app and CLI
  • Start from your phone
  • Automatic code review
  • AGENTS.md
  • Open source CLI

Pros and cons

AttributeClaude CodeFactoryOpenAI Codex
Pros
  • Finishes real tasks end to end, not just suggestions you have to apply
  • Best-in-class at understanding a whole codebase before it changes anything
  • Runs in the terminal, desktop app, web, phone and the main editors
  • CLAUDE.md, Skills and MCPs make it fit your way of working
  • One Claude subscription covers both chat and coding
  • Start agent work from tickets and chat, not only the terminal
  • Use models from several AI companies in one tool
  • Can fall back to free open models when you hit your limit
  • Strong enterprise options: SSO, zero retention, on-premise
  • 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
Cons
  • No free tier, and the Pro usage cap can run out in an afternoon of heavy work
  • The terminal is intimidating for non-developers at first
  • It will happily change things you did not ask about unless you set boundaries
  • Costs on Max or the API add up fast for teams
  • Anthropic cut weekly Claude Code limits by about 17% on 14 September, and limits may shift again
  • Rolling usage limits make monthly cost hard to predict, and premium models eat them fast
  • Background cloud agents need the $100 plan
  • Less transparent about what context it's using than Claude Code
  • Only useful if you have developers to review its work
  • 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

Who each one is for

AttributeClaude CodeFactoryOpenAI Codex
Best for
  • Building features end to end
  • Fixing bugs you can't find
  • Explaining a codebase you don't know
  • Automating repetitive dev tasks
  • Working through backlog tickets in the background
  • Bug fixes and small features from Jira or Linear
  • Automated pull request reviews
  • Teams that want to mix AI models
  • Recurring engineering chores like docs and tests
  • Background tasks in the cloud
  • Starting a task from your phone
  • Developers already on ChatGPT Plus
  • Coding in the terminal
You'll find it used by
  • Developers
  • Solo founders
  • Agencies
  • Technical marketers
  • Software teams
  • Engineering managers
  • Developers
  • Platform and DevOps teams
  • ChatGPT subscribers
  • Developers
  • Startup teams
  • Solo founders

Questions people ask

Which is better, Claude Code, Factory or OpenAI Codex?

Claude Code scores highest overall in our ratings (Claude Code 4.4/5, Factory 3.8/5 and OpenAI Codex 4.2/5). Claude Code is best for building features end to end and fixing bugs you can't find. Factory is best for working through backlog tickets in the background and bug fixes and small features from Jira or Linear. OpenAI Codex is best for background tasks in the cloud and starting a task from your phone.

Which is cheaper, Claude Code, Factory or OpenAI Codex?

Claude Code: There's no free plan. Paid plans start at $20/mo. Factory: There's no free plan. Paid plans start at $20/mo. OpenAI Codex: There's a free plan, and paid plans start at $8/mo.

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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