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Side-by-side comparison · AI Assistants & LLMs

ChatGPT vs Claude vs Kimi

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

ChatGPT

4.3

From $8/mo

Best overall

Claude

4.6

From $20/mo

Kimi

3.8

From $19/mo or $15/mo

Comparing 3 tools, the maximum.

At a glance

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

Best overallBest value

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

Kimi3.8

Pick it if: People who want an agent to produce finished slides, documents, spreadsheets and websites, and developers after a cheaper coding model.

Overview

AttributeChatGPTClaudeKimi
In one lineOpenAI's all-rounder: chat, images, voice, web search and agents in one app.Anthropic's chat assistant, at its best on careful writing and long documents.Moonshot AI's assistant with a strong agent for slides, documents, sheets and websites.
Pricing modelFreemiumFreemiumFreemium
Starting price$8/mo$20/mo$19/mo or $15/mo
Free plan Yes Yes Yes
Works with Claude Code No Yes No

Rating breakdown

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

AttributeChatGPTClaudeKimi
Overall rating4.34.6Winner3.8
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
4.0
FeaturesHow completely it covers the job it's built for, and how well the pieces fit together.
5.0
4.5
4.5
Output qualityHow good the results are before you fix them.
4.0
5.0
4.0
Value for moneyWhat you get for the price, including the free plan.
4.0
4.5
3.5
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.5
3.0

Feature comparison

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

AttributeChatGPTClaudeKimi
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension Yes Yes No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes–
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 Yes 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 No
Works in many languages Yes Yes Yes
Capabilities score15/ 1714/ 1710/ 17

Pricing

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

AttributeChatGPTClaudeKimi
Plans

Free

Free

Trying it out and everyday questions.

Free

Free

Trying it out and light daily use.

Adagio

Free

Trying the chat and a taste of the agent.

Go

$8/mo

Casual users who hit the free limits.

ProOur pick

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

Anyone who uses it most days.

PlusOur pick

$19/mo or $15/mo billed yearly

Anyone who wants to use the agent most weeks.

PlusOur pick

$20/mo

Anyone using it most days for work.

Max

From $100/mo

Heavy users and people living in Claude Code.

Pro

$39/mo or $31/mo billed yearly

Regular users who run out of credits on Plus.

Pro

From $100/mo

Heavy users and people living in Codex.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

Max

$99/mo or $79/mo billed yearly

Heavy users running several jobs at once.

Business

See website

Teams from 2 people up.

Ultra

$199/mo or $159/mo billed yearly

Power users running agents all day.

Which plan to pickThe 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: Pro 200 now comes with a smaller allowance than it did before 29 September.Start 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.Try the free plan to see the agent's output. If you like it, Plus at $19 is the sensible plan, and the yearly price drops it to $15. Only move up if you keep running out of credits, which long Swarm jobs do quickly.

Key features

AttributeChatGPTClaudeKimi
Standout features
  • Image generation and editing
  • Voice mode
  • Deep research
  • ChatGPT Work
  • Plugins and connectors
  • Codex and Sites
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Tasks and Claude Code
  • Memory
  • Agent
  • Slides, Docs and Sheets
  • Agent Swarm
  • Deep Research
  • Kimi Code
  • Open model

Pros and cons

AttributeChatGPTClaudeKimi
Pros
  • The widest set of built-in tools of any assistant
  • Free plan includes unlimited text chat with GPT-6 Luna
  • Image generation and voice mode are the best in the category
  • Huge ecosystem of plugins, connectors and guides
  • One subscription covers the Codex coding agent too
  • 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 free plan now includes memory, connectors and Artifacts
  • Agent produces finished slides, documents, sheets and websites
  • Kimi K3 is a leading open model, strong at coding and long tasks
  • Swarm handles big research jobs in parallel
  • Cheaper than Claude or ChatGPT for comparable agent work
Cons
  • 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
  • Custom GPTs are being retired, so anything built on them needs moving to plugins
  • Free and Pro usage limits can bite on a busy day
  • No image or video generation, which ChatGPT and Gemini both have
  • The free plan doesn't include the top Opus models
  • Fewer third-party connectors and plugins than ChatGPT
  • Shared credits drain quickly on long agent and Swarm jobs, and unused credits don't roll over
  • K3 is slow, and users report network errors and long-running tasks
  • Main privacy policy stores data in China, and the hosted service blocks China-critical topics
  • Free plan is thin and allowances aren't published in plain numbers
  • Since late August 2026 even ordinary chats draw on the credit pool, and some users report duplicate charges on renewal

Who each one is for

AttributeChatGPTClaudeKimi
Best for
  • Everyday questions and brainstorming
  • Making and editing images in the chat
  • Voice conversations on your phone
  • Quick research with web search
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Turning a brief into a slide deck
  • Research reports and document drafts
  • Analysing a spreadsheet
  • Building a simple website
  • Coding on a budget
You'll find it used by
  • Marketers
  • Small business owners
  • Students
  • Developers
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Consultants
  • Marketers
  • Students
  • Developers
  • Analysts

Questions people ask

Which is better, ChatGPT, Claude or Kimi?

Claude scores highest overall in our ratings (ChatGPT 4.3/5, Claude 4.6/5 and Kimi 3.8/5). ChatGPT is best for everyday questions and brainstorming and making and editing images in the chat. Claude is best for long-form writing and editing and reading and summarising long documents. Kimi is best for turning a brief into a slide deck and research reports and document drafts.

Which is cheaper, ChatGPT, Claude or Kimi?

ChatGPT: There's a free plan, and paid plans start at $8/mo. Claude: There's a free plan, and paid plans start at $20/mo. Kimi: There's a free plan, and paid plans start at $19/mo or $15/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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