What is the difference between ChatGPT Plus and Claude Pro?

ChatGPT Plus costs $20 a month (GPT-6 Sol and GPT-6 Luna; Codex on the web, CLI, IDE extension and iOS; Extend usage with ChatGPT credits). Claude Pro costs $20 a month (More usage than Free; Includes Claude Code, Claude Cowork and Claude Design; Research and unlimited projects).

Is Claude Pro worth it?

Claude Pro is worth it if you regularly run out of ChatGPT Plus’s included usage; otherwise the extra $0 a month buys capacity you won’t use.

Which models do ChatGPT Plus and Claude Pro use?

ChatGPT Plus: GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-6 Astra, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna. Claude Pro: Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 4.5, Claude Fable 5.1.

ChatGPT Plus vs Claude Pro

ChatGPT Plus and Claude Pro cost the same, $20 a month, so the choice comes down to which models and features you need.

US prices from official pricing pages, verified October 3, 2026.

Standard

ChatGPT Plus

$20/mo

GPT-6 Sol and GPT-6 Luna
Codex on the web, CLI, IDE extension and iOS
Extend usage with ChatGPT credits

Models: GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-6 Astra, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna

The same $20 buys about 1,250 GPT-6.1 Sol API messages a month.

Standard

Claude Pro

$20/mo

$17/mo billed yearly

More usage than Free
Includes Claude Code, Claude Cowork and Claude Design
Research and unlimited projects

Annual billing is $200 up front.

Models: Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 4.5, Claude Fable 5.1

The same $20 buys about 625 Claude Opus 5.5 API messages a month.

Which should you pick?

Choose ChatGPT Plus if you prefer OpenAI’s models and apps.
Choose Claude Pro if you prefer Anthropic’s models and apps.
Many people keep one paid plan and use the free tier of the other for second opinions.
Light or irregular use? Paying per token can cost less than either plan — check the subscription vs API calculator.

Other tiers: ChatGPT Go ($8/mo), ChatGPT Pro (5x) ($100/mo), ChatGPT Pro (20x) ($200/mo), ChatGPT Pro ($500) ($500/mo), Claude Max 5x ($100/mo), Claude Max 20x ($200/mo).

Frequently asked questions

What is the difference between ChatGPT Plus and Claude Pro?: ChatGPT Plus costs $20 a month (GPT-6 Sol and GPT-6 Luna; Codex on the web, CLI, IDE extension and iOS; Extend usage with ChatGPT credits). Claude Pro costs $20 a month (More usage than Free; Includes Claude Code, Claude Cowork and Claude Design; Research and unlimited projects).
Is Claude Pro worth it?: Claude Pro is worth it if you regularly run out of ChatGPT Plus’s included usage; otherwise the extra $0 a month buys capacity you won’t use.
Which models do ChatGPT Plus and Claude Pro use?: ChatGPT Plus: GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-6 Astra, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna. Claude Pro: Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 4.5, Claude Fable 5.1.

Related comparisons

API figures use Claude Opus 5.5 at $4.00 input / $20.00 output per 1M tokens.