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Side-by-side comparison · AI Assistants & LLMs

Claude vs GPT-6 Astra vs DeepSeek

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

GPT-6 Astra

3.8

From $20/mo

DeepSeek

3.8

From Pay per use

Comparing 3 tools, the maximum.

At a glance

Claude

4.6
Best overallEasiest to use

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

GPT-6 Astra

3.8

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

DeepSeek

3.8
Best value

Pick it if: Anyone who wants a strong reasoning assistant for free, and developers watching their API costs.

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

Overview

AttributeClaudeGPT-6 AstraDeepSeek
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.OpenAI's top model, built to work your computer for you across long, multi-step jobs.A free Chinese assistant that's strong at maths, logic and code.
Pricing modelFreemiumPaidFree
Starting price$20/mo$20/moPay per use
Free plan Yes No Yes
Works with Claude Code Yes No No

Rating breakdown

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

AttributeClaudeGPT-6 AstraDeepSeek
Overall rating4.6Winner3.83.8
Ease of useHow quickly someone non-technical gets value from it.
4.5
3.0
3.5
FeaturesHow much it can do, and how well the pieces fit together.
4.5
4.5
3.0
Output qualityHow good the results are before you fix them.
5.0
5.0
4.0
Value for moneyWhat you get for the price, including the free plan.
4.5
3.0
5.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
3.5
3.5

Feature comparison

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

AttributeClaudeGPT-6 AstraDeepSeek
Access & platform
Free plan Yes No Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes No
Browser extension Yes Yes No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes No
Enterprise plan or SSO Yes Yes No
Connects to other apps Yes Yes No
Open source or self-hosted No No Yes
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No Yes No
Makes video No No No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes No
Learns your brand or style Yes Yes No
Works in many languages Yes Yes Yes
Capabilities score14/ 1714/ 178/ 17

Pricing

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

AttributeClaudeGPT-6 AstraDeepSeek
Plans

Free

Free

Trying it out and light daily use.

ChatGPT Plus

$20/mo

Trying Astra in Codex and ChatGPT Work.

Chat appOur pick

Free

Anyone who wants a capable reasoning assistant at no cost.

ProOur pick

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

Anyone who uses it most days.

ChatGPT ProOur pick

From $100/mo

People who want Astra and Astra Pro everywhere.

API (deepseek-flash)

Pay per use, from $0.15 per million input tokens

Developers building cheap features into their own apps.

Max

From $100/mo

Heavy users and people living in Claude Code.

ChatGPT Business

See website

Teams that want Astra Pro with admin controls.

API (deepseek-v4-pro)

Pay per use, from $0.66 per million input tokens

Developers who want the stronger model.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

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.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.The app is free, so the only decision is whether the privacy trade-off is acceptable for what you're asking. If you need the model inside your own software, have a developer use the API or run the open model through a provider that keeps your data in Australia.

Key features

AttributeClaudeGPT-6 AstraDeepSeek
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Claude Code
  • Memory
  • Computer use
  • Long multi-step jobs
  • Astra Pro
  • Codex
  • API access
  • Step-by-step reasoning
  • Free app
  • Open models
  • Cheap API
  • Code help

Pros and cons

AttributeClaudeGPT-6 AstraDeepSeek
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 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
  • Free app with no paid tier, and strong at reasoning and code
  • API costs a fraction of the big US labs
  • Models are open, so you can run them where your data rules allow
  • Shows its reasoning so mistakes are easier to catch
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
  • 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
  • Data goes to China and it's banned on Australian government devices
  • No image or video generation and almost no integrations
  • Service slows or drops out when demand spikes
  • Avoids or slants topics sensitive to the Chinese government
  • Writing quality is behind Claude and ChatGPT

Who each one is for

AttributeClaudeGPT-6 AstraDeepSeek
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Driving editing software from instructions
  • Long research and build tasks
  • Computer-use automation
  • Coding through Codex
  • Maths, logic and step-by-step problems
  • Coding help
  • A capable free assistant
  • Cheap API access for your own apps
You'll find it used by
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Power users
  • Video editors
  • Developers
  • Analysts
  • Developers
  • Students
  • Analysts
  • Budget-conscious founders

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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