Skip to content

Side-by-side comparison · AI Assistants & LLMs

Claude vs DeepSeek vs ChatGPT

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

DeepSeek

3.8

From Pay per use

ChatGPT

4.3

From $8/mo

Comparing 3 tools, the maximum.

At a glance

Claude

4.6
Best overall

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

DeepSeek

3.8
Best value

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

ChatGPT

4.3

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

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

Overview

AttributeClaudeDeepSeekChatGPT
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.A free Chinese assistant that's strong at maths, logic and code.OpenAI's all-rounder: chat, images, voice, web search and agents in one app.
Pricing modelFreemiumFreeFreemium
Starting price$20/moPay per use$8/mo
Free plan Yes Yes Yes
Works with Claude Code Yes No No

Rating breakdown

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

AttributeClaudeDeepSeekChatGPT
Overall rating4.6Winner3.84.3
Ease of useHow quickly someone non-technical gets value from it.
4.5
3.5
4.5
FeaturesHow much it can do, and how well the pieces fit together.
4.5
3.0
5.0
Output qualityHow good the results are before you fix them.
5.0
4.0
4.0
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.
4.5
3.5
4.0

Feature comparison

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

AttributeClaudeDeepSeekChatGPT
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes No Yes
Browser extension Yes No Yes
API access Yes Yes Yes
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes No Yes
Connects to other apps Yes No Yes
Open source or self-hosted No Yes No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No No Yes
Makes video No No Yes
Writes code Yes Yes Yes
Runs agents or automations Yes No Yes
Learns your brand or style Yes No Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 178/ 1716/ 17

Pricing

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

AttributeClaudeDeepSeekChatGPT
Plans

Free

Free

Trying it out and light daily use.

Chat appOur pick

Free

Anyone who wants a capable reasoning assistant at no cost.

Free

Free

Trying it out and everyday questions.

ProOur pick

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

Anyone who uses it most days.

API (deepseek-flash)

Pay per use, from $0.15 per million input tokens

Developers building cheap features into their own apps.

Go

$8/mo

Casual users who hit the free limits.

Max

From $100/mo

Heavy users and people living in Claude Code.

API (deepseek-v4-pro)

Pay per use, from $0.66 per million input tokens

Developers who want the stronger model.

PlusOur pick

$20/mo

Anyone using it most days for work.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

Pro

From $100/mo

Heavy users and people living in Codex.

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 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.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.

Key features

AttributeClaudeDeepSeekChatGPT
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Claude Code
  • Memory
  • Step-by-step reasoning
  • Free app
  • Open models
  • Cheap API
  • Code help
  • Image generation and editing
  • Voice mode
  • Deep research
  • Agent mode
  • Custom GPTs and connectors
  • Codex

Pros and cons

AttributeClaudeDeepSeekChatGPT
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
  • 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
  • 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
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
  • 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
  • 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

Who each one is for

AttributeClaudeDeepSeekChatGPT
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Maths, logic and step-by-step problems
  • Coding help
  • A capable free assistant
  • Cheap API access for your own apps
  • Everyday questions and brainstorming
  • Making and editing images in the chat
  • Voice conversations on your phone
  • Quick research with web search
You'll find it used by
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Developers
  • Students
  • Analysts
  • Budget-conscious founders
  • Marketers
  • Small business owners
  • Students
  • Developers

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.

Swap in another tool

More ai assistants & llms tools from the library.