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Quick answers

Common questions about Claude and ChatGPT pricing, tokens and plans, with the direct answer and the calculator ready to adjust.

Price of each model

Claude Fable 5.1Claude Opus 5.5Claude Sonnet 5.5Claude Haiku 4.5GPT-5.6 SolGPT-5.6 TerraGPT-5.6 Luna

Tokens to words

1,000 tokens10,000 tokens100,000 tokens128K tokens200K tokens500K tokens1 million tokens2 million tokens

Context window

Claude Opus 5.5Claude Haiku 4.5GPT-5.6

Which is cheaper

Opus 5.5 × GPT-5.6 SolSonnet 5.5 × GPT-5.6 TerraHaiku 4.5 × GPT-5.6 LunaFable 5.1 × GPT-5.6 SolOpus 5.5 × Sonnet 5.5Sonnet 5.5 × Haiku 4.5

Subscriptions

Claude ProClaude MaxChatGPT Plus

Coding agents

Claude CodeCodex