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Side-by-side comparison · AI Assistants & LLMs

Claude vs Perplexity 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

Perplexity

4.2

From $20/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.

Perplexity

4.2

Pick it if: Anyone who researches as part of their job and is sick of having ten tabs open.

GPT-6 Astra

3.8

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

Overview

AttributeClaudePerplexityGPT-6 Astra
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.Ask a question and get a short answer from the web, with links to every source.OpenAI's top model, built to work your computer for you across long, multi-step jobs.
Pricing modelFreemiumFreemiumPaid
Starting price$20/mo$20/mo$20/mo
Free plan Yes Yes No
Works with Claude Code Yes Yes No

Rating breakdown

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

AttributeClaudePerplexityGPT-6 Astra
Overall rating4.6Winner4.23.8
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
3.5
4.5
Output qualityHow good the results are before you fix them.
5.0
4.5
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
4.5
3.5

Feature comparison

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

AttributeClaudePerplexityGPT-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 No Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 1715/ 1714/ 17

Pricing

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

AttributeClaudePerplexityGPT-6 Astra
Plans

Free

Free

Trying it out and light daily use.

Free

Free

Everyday questions and quick fact-checks.

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.

ProOur pick

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

Anyone who researches as part of their job.

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.

Max

$200/mo, or $167/mo billed yearly

Power users running the Computer agent all day.

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.

Enterprise

See website

Teams that need admin controls and data protection.

API

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

Developers building Astra into their own software.

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.Start free and see how often you hit the Pro search limit. If you research most days, Pro pays for itself in saved tabs. Max only makes sense if you're using the Computer agent heavily enough to burn through the credits.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

AttributeClaudePerplexityGPT-6 Astra
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Claude Code
  • Memory
  • Cited answers
  • Deep research
  • Comet browser
  • Computer
  • Spaces
  • Choice of models
  • Computer use
  • Long multi-step jobs
  • Astra Pro
  • Codex
  • API access

Pros and cons

AttributeClaudePerplexityGPT-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
  • Sources on every answer make it the easiest assistant to fact-check
  • Short, direct answers instead of padded essays
  • Free plan is useful on its own and Comet is free
  • Lets you pick from the best models from several companies
  • Fast, and the mobile app is good
  • 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
  • Weak for long writing, planning or creative work
  • Credits and plan details for Computer are confusing and have changed often
  • Sources are sometimes low quality, so you still need to read them
  • Max is expensive for what most businesses need
  • 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

AttributeClaudePerplexityGPT-6 Astra
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Fact-checking and quick research
  • Competitor and market research
  • Comparing products before you buy
  • Getting up to speed on a new topic
  • 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
  • Researchers
  • Marketers
  • Consultants
  • Founders
  • 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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