ChatGPT vs Claude vs OpenClaw

Verdict

Notis aside, OpenClaw has the highest support score, 88% across all 33 rows. ChatGPT scores 80% across 32 checked rows out of 33 and Claude scores 67% across all 33 rows.

Their strengths differ: OpenClaw for working inside the apps you already use, ChatGPT for running on the AI subscription you already pay for and Claude for remembering context between conversations.

Only Notis documents Email.

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Capabilities and pricing

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Capability comparison between Notis and the selected assistants
Capability	View pricing	ChatGPTVisit site	ClaudeVisit site	OpenClawRead the comparison
Where you can use it
WhatsApp		Partial	—No WhatsApp channel
iMessage		—	PartialiMessage via research-preview plugin
Telegram		—	PartialTelegram bot via plugin you host
Slack			PartialTeam/Enterprise only, via Claude Tag
Email		—	—No email channel	—
SMS or a phone number	PartialInbound calls only, no SMS	Partial	—No SMS or phone channel	Partial
Voice messages	Voice notes + live calls		Live two-way voice, all plans
Web or desktop app	Web, desktop and Home Screen app		Web and downloadable desktop app
Its own iPhone or Android app	Home Screen app on iPhone		First-party iOS and Android apps
Bring your own AI
Runs on your own Claude plan		Not checked	First-party Anthropic product
Runs on your own ChatGPT plan			—No ChatGPT sign-in
Bring your own API key	—		PartialClaude Code only, third-party providers
Works inside your own coding agent
You choose which model runs your work			Model selector, chosen per task or saved
What it can do
Ready-made app integrations	1,000+ apps	Partial	400+ named third-party connectors
Creates and edits documents			Creates files that outlive the chat
Save your own reusable instructions			Upload your own reusable skill
Browses the web for you			Drives your own screen, Pro/Max, beta
Posts to social media for you			—No social posting connector
Joins and records your meetings	—		—
Memory
Remembers you between conversations
Reads your existing files and apps	Notion, Gmail, Drive, Granola, web
Runs without you
Runs on a schedule or a trigger			Partial
Reminds and nudges you			Partial
Computers it can use
Gives it a cloud computer of its own		Partial	Partial4 vCPU/16GB/30GB VM, Pro/Max/Team	—
Controls your own computer	Shell and apps, via the desktop app
Connects to MCP servers on your computer			Local stdio MCP servers via Claude Code
Trust & control
Open source	—	Partial	Partial
Run it on your own server	—	Partial	Partial
Says it will not train on your data	Covers Notis and its LLM providers	Partial	Partial	Partial
Published security certification	PartialSub-processors certified; Notis is not		SOC 2, ISO 27001, ISO 42001, HIPAA-ready	—
Plans & support
Free plan does the product's main job	Partial
Shared team workspace
Price	FREEPRO$13/moyr (rate on a yearly commitment)+2 more	Codex CLI (free software; API/model usage billed separately)Free+7 more	FreePro$17/moyr (rate on a yearly commitment)+4 more	Free

IncludedPartial— Not documentedNot checked

Ranked by support score

1. OpenClaw

Open-source self-hosted personal AI agent

A self-hosted, MIT-licensed gateway that connects 29+ chat apps to an AI agent running on your own machine, with shell access, a browser, memory, cron automations and MCP.

Best for: working inside the apps you already use

Documented strengths

Where you can use it: WhatsApp, iMessage, Telegram, Slack, Voice messages, Web or desktop app and Its own iPhone or Android app
What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions, Browses the web for you, Posts to social media for you and Joins and records your meetings
Bring your own AI: Runs on your own Claude plan, Runs on your own ChatGPT plan, Bring your own API key, Works inside your own coding agent and You choose which model runs your work

The catch

The gap is a computer it can use, with nothing documented for Gives it a cloud computer of its own.

Pricing

Free

Free (MIT open source; you pay your own model provider, or reuse a Claude/ChatGPT subscription) · docs.openclaw.ai

How it differs from Notis: OpenClaw maximizes self-hosting and operator control on your own hardware; Notis provides a managed, hosted onboarding path with hosted integrations and support.

Visit OpenClaw OpenClaw alternativesSupport score: 88% across all 33 rows

2. Notis

Personal AI assistant

Notis is a personal AI assistant you message from WhatsApp, iMessage, Telegram, Slack or email, and reach from your own coding agent through its MCP server.

Best for: running long jobs on a machine of its own

Documented strengths

Where you can use it: WhatsApp, iMessage, Telegram, Slack, Email, Voice messages, Web or desktop app and Its own iPhone or Android app
What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions, Browses the web for you and Posts to social media for you
Bring your own AI: Runs on your own Claude plan, Runs on your own ChatGPT plan, Works inside your own coding agent and You choose which model runs your work

The catch

The gap is published guarantees about your data, with nothing documented for Open source and Run it on your own server.

Pricing

FREEPRO$13/moyrPRO+$39/moyrULTRA$99/moyr

Free–$149/mo · help.notis.ai

See Notis pricingSupport score: 83% across all 33 rows

3. ChatGPT

General-purpose AI assistant

Combines conversational help, multi-step Work, and Codex across web, mobile, and desktop.

Best for: running on the AI subscription you already pay for

Documented strengths

What it can do: Creates and edits documents, Save your own reusable instructions, Browses the web for you, Posts to social media for you and Joins and records your meetings
Bring your own AI: Runs on your own ChatGPT plan, Bring your own API key, Works inside your own coding agent and You choose which model runs your work
Where you can use it: Slack, Voice messages, Web or desktop app and Its own iPhone or Android app

The catch

The gap is messaging channels, with nothing documented for iMessage, Telegram and Email.

Pricing

Codex CLI (free software; API/model usage billed separately)FreeGo$8/moBusiness Standard$20/user/moyrPlus$20/moBusiness Premium$100/user/moyrPro 5x$100/moPro 20x$200/moEnterpriseCustom pricing

$0-$200/month individual; Business $25-$125/user/month ($20-$100 annual); Enterprise custom · free tier available · chatgpt.com

How it differs from Notis: A broad destination assistant with first-party models and agentic Chat, Work, and Codex surfaces, rather than a channel-first cross-provider execution layer.

Visit ChatGPT ChatGPT alternativesSupport score: 80% across 32 checked rows out of 33

4. Claude

AI chat assistant

Anthropic's own assistant: chat on web, desktop and mobile, plus Claude Code for agentic work on your machine or in a cloud session.

Best for: remembering context between conversations

Documented strengths

What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions and Browses the web for you
Bring your own AI: Runs on your own Claude plan, Works inside your own coding agent and You choose which model runs your work
Where you can use it: Voice messages, Web or desktop app and Its own iPhone or Android app

The catch

The gap is messaging channels, with nothing documented for WhatsApp, Email and SMS or a phone number.

Pricing

FreePro$17/moyrTeam Standard$20/user/moyrMax 5x$100/moTeam Premium$100/user/moyrMax 20x$200/mo

Free–$100/mo (Pro $17/mo annual or $20/mo; Max from $100/mo; Team $20/seat/mo annual or $25) · claude.com

How it differs from Notis: Claude is the underlying general intelligence and coding environment; Notis adds persistent personal routing, messaging channels, and an execution layer spanning providers.

Visit Claude Claude alternativesSupport score: 67% across all 33 rows

Questions about this comparison

Which of OpenClaw, ChatGPT or Claude scores highest in the evidence checked so far?

OpenClaw, with 88% across all 33 rows. ChatGPT scores 80% across 32 checked rows out of 33 and Claude scores 67% across all 33 rows.

How much do they cost?

OpenClaw: Free (MIT open source; you pay your own model provider, or reuse a Claude/ChatGPT subscription); ChatGPT: $0-$200/month individual; Business $25-$125/user/month ($20-$100 annual); Enterprise custom; Claude: Free–$100/mo (Pro $17/mo annual or $20/mo; Max from $100/mo; Team $20/seat/mo annual or $25). These prices are not directly comparable, so we do not rank them.

Which of them can I try for free?

OpenClaw, ChatGPT and Claude have a free tier.

Which of them work in WhatsApp?

OpenClaw does. Claude does not.

Where does Notis fit in?

Notis is number 2 on this page. Against OpenClaw: OpenClaw maximizes self-hosting and operator control on your own hardware; Notis provides a managed, hosted onboarding path with hosted integrations and support.

How we checked

We checked each product's official pages against the same 33 capability rows. The support score is the share of checked rows a product documents. Partial support counts half, and rows not checked yet stay out of the score. Notis chose the rows and is scored the same way. The score does not measure reliability, reply speed or writing quality. Last checked 21 August 2026.

Sources

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