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Side-by-side comparison · AI Assistants & LLMs

Claude vs ChatGPT vs GPT-6 Astra

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

4.6

From $20/mo

ChatGPT

4.3

From $8/mo

GPT-6 Astra

3.8

From $20/mo

Comparing 3 tools, the maximum.

At a glance

Claude

4.6
Best overallBest value

Pick it if: Anyone who writes, researches or makes decisions for a living, plus anyone curious about Claude Code.

ChatGPT

4.3

Pick it if: Anyone who wants one general-purpose assistant that handles most everyday jobs.

GPT-6 Astra

3.8

Pick it if: Power users and editors who want an AI that can operate their software for them.

Overview

AttributeClaudeChatGPTGPT-6 Astra
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.OpenAI's all-rounder: chat, images, voice, web search and agents in one app.OpenAI's top model, built to work your computer for you across long, multi-step jobs.
Pricing modelFreemiumFreemiumPaid
Starting price$20/mo$8/mo$20/mo
Free plan Yes Yes No
Works with Claude Code Yes No No

Rating breakdown

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

AttributeClaudeChatGPTGPT-6 Astra
Overall rating4.6Winner4.33.8
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
3.0
FeaturesHow much it can do, and how well the pieces fit together.
4.5
5.0
4.5
Output qualityHow good the results are before you fix them.
5.0
4.0
5.0
Value for moneyWhat you get for the price, including the free plan.
4.5
4.0
3.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.0
3.5

Feature comparison

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

AttributeClaudeChatGPTGPT-6 Astra
Access & platform
Free plan Yes Yes No
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension Yes Yes Yes
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 No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No Yes Yes
Makes video No Yes No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes Yes Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 1716/ 1714/ 17

Pricing

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

AttributeClaudeChatGPTGPT-6 Astra
Plans

Free

Free

Trying it out and light daily use.

Free

Free

Trying it out and everyday questions.

ChatGPT Plus

$20/mo

Trying Astra in Codex and ChatGPT Work.

ProOur pick

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

Anyone who uses it most days.

Go

$8/mo

Casual users who hit the free limits.

ChatGPT ProOur pick

From $100/mo

People who want Astra and Astra Pro everywhere.

Max

From $100/mo

Heavy users and people living in Claude Code.

PlusOur pick

$20/mo

Anyone using it most days for work.

ChatGPT Business

See website

Teams that want Astra Pro with admin controls.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

Pro

From $100/mo

Heavy users and people living in Codex.

API

$10 per million input tokens, $50 per million output

Developers building Astra into their own software.

Business

See website

Teams from 2 people up.

Which plan to pickStart on Free to see if the writing suits you. Most people who stick with it move to Pro within a month; only go to Max if you hit the Pro limits every day or you're running Claude Code for hours at a time.The free plan is now good enough to use properly, so stay on it until the image, voice or research limits annoy you. Plus is the sensible upgrade. Only look at Pro if you run Codex or deep research all day, and read the current tier details first because they keep changing.Don't buy a plan for Astra alone. If you're on Plus, try it in Codex first. Move to Pro only if you've got real computer-use or long agent jobs for it, and start on the $100 tier. For most writing and research, GPT-6.1 Sol or the standard models are faster and good enough.

Key features

AttributeClaudeChatGPTGPT-6 Astra
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Claude Code
  • Memory
  • Image generation and editing
  • Voice mode
  • Deep research
  • Agent mode
  • Custom GPTs and connectors
  • Codex
  • Computer use
  • Long multi-step jobs
  • Astra Pro
  • Codex
  • API access

Pros and cons

AttributeClaudeChatGPTGPT-6 Astra
Pros
  • Writing sounds like a person and needs the least editing of any assistant
  • Handles long documents and messy briefs without losing track
  • Projects and memory mean you stop repeating the same context
  • Artifacts turn answers into real documents, slides and small apps
  • One subscription covers Claude Code as well
  • The widest set of built-in tools of any assistant
  • Free plan now includes unlimited text chat on the main model
  • Image generation and voice mode are the best in the category
  • Huge ecosystem of custom GPTs, connectors and guides
  • One subscription covers the Codex coding agent too
  • The strongest computer-use and agent model available
  • Works through long jobs without hand-holding
  • Included in paid ChatGPT plans rather than sold separately
  • Best coding results of any OpenAI model to date
Cons
  • Free and Pro usage limits can bite on a busy day
  • No video generation, and image generation is basic next to ChatGPT
  • Fewer third-party connectors and plugins than ChatGPT
  • Writing sounds generic unless you work hard on the prompt
  • Plans and limits change often, and Pro now runs to $500 a month
  • Free and Go plans may show ads
  • It's confident when it's wrong, so check facts before you publish
  • Only on paid plans, and full access needs Pro from $100 a month
  • Slower and far more expensive per token than the standard models
  • Already overtaken for most tasks by the cheaper GPT-6.1 Sol
  • Computer use is still fiddly and results depend heavily on your setup
  • Rollout and plan access keep changing, so what you get varies week to week

Who each one is for

AttributeClaudeChatGPTGPT-6 Astra
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Everyday questions and brainstorming
  • Making and editing images in the chat
  • Voice conversations on your phone
  • Quick research with web search
  • Driving editing software from instructions
  • Long research and build tasks
  • Computer-use automation
  • Coding through Codex
You'll find it used by
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Marketers
  • Small business owners
  • Students
  • Developers
  • Power users
  • Video editors
  • Developers
  • Analysts

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability. The "Visit" buttons may use affiliate links, which never affect a score.

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