ChatGPT vs Claude vs Fireflies.ai

Verdict

Notis aside, ChatGPT has the highest support score, 80% across 32 checked rows out of 33. Claude scores 67% across all 33 rows and Fireflies.ai scores 55% across all 33 rows.

Their strengths differ: ChatGPT for running on the AI subscription you already pay for, Claude for remembering context between conversations and Fireflies.ai for rolling a shared assistant out to a team.

Notis, ChatGPT, Claude and Fireflies.ai tie for the cheapest way in at $0, and only ChatGPT, Claude and Fireflies.ai have a free plan that does the product's main job.

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	Fireflies.aiVisit site
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	—
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	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	Partial
Says it will not train on your data	Covers Notis and its LLM providers	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	FreePro$10/user/moyr (rate on a yearly commitment)+2 more

IncludedPartial— Not documentedNot checked

Ranked by support score

1. 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: reaching it from the apps you already message in

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

2. 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

3. 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 support for your own AI plan, with nothing documented for Runs on your own ChatGPT plan.

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

4. Fireflies.ai

AI meeting notetaker

An AI meeting notetaker that records your calls, runs saved AI skills on them, and answers questions in Slack, your inbox or your coding agent.

Best for: rolling a shared assistant out to a team

Documented strengths

What it can do: Ready-made app integrations, Creates and edits documents, Save your own reusable instructions and Joins and records your meetings
Where you can use it: Slack, Voice messages, Web or desktop app and Its own iPhone or Android app
Memory: Remembers you between conversations and Reads your existing files and apps

The catch

The gap is support for your own AI plan, with nothing documented for Runs on your own Claude plan, Runs on your own ChatGPT plan and Bring your own API key.

Pricing

FreePro$10/user/moyrBusiness$19/user/moyrEnterprise$39/user/mo

Free–$39 per seat/month (Pro $10, Business $19, Enterprise $39, all billed annually; Pro $18 and Business $29 monthly) · fireflies.ai

How it differs from Notis: Fireflies starts from recorded conversations and pushes them into your CRM, Slack and inbox; Notis starts from the message you send it and reaches a much wider tool layer.

Visit Fireflies.ai Fireflies.ai alternativesSupport score: 55% across all 33 rows

Questions about this comparison

Which of ChatGPT, Claude or Fireflies.ai scores highest in the evidence checked so far?

ChatGPT, with 80% across 32 checked rows out of 33. Claude scores 67% across all 33 rows and Fireflies.ai scores 55% across all 33 rows.

How much do they cost?

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); Fireflies.ai: Free–$39 per seat/month (Pro $10, Business $19, Enterprise $39, all billed annually; Pro $18 and Business $29 monthly). Notis, ChatGPT, Claude and Fireflies.ai all start at $0, and only ChatGPT, Claude and Fireflies.ai have a free plan that does the product's main job.

Which of them can I try for free?

ChatGPT, Claude and Fireflies.ai have a free tier.

Where does Notis fit in?

Notis is number 1 on this page. Against ChatGPT: A broad destination assistant with first-party models and agentic Chat, Work, and Codex surfaces, rather than a channel-first cross-provider execution layer.

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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