Tokens

• 1 token ≈ 3/4 of an English word, 1,000 tokens ≈ 750 words

• Input tokens

• Your prompt
• System instructions

• Conversation history

• Output tokens

• The model's response

• You are billed for both input and output tokens

Pricing

• GPT-5 mini
• Input: $0.25 / 1M tokens
• Cached Input: $0.025 / 1M tokens

• Output: $2.00 / 1M tokens

• GPT-5.2

• Input: $1.75 / 1M tokens
• Cached Input: $0.175 / 1M tokens

• Output: $14.00 / 1M tokens

• GPT-5.2 pro

• Input: $21.00 / 1M tokens
• Output: $168.00 / 1M tokens

Context Size

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