What is Input tokens?
Input tokens is a commercial or pricing concept in the AI market. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system.
Definition
Input tokens is a commercial or pricing concept in the AI market. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system. The term is used in business and pricing discussions, where precision matters: two teams can use the same word to mean slightly different things. In this glossary, input tokens is treated as a practical concept rather than a formal specification.
Why it matters
Business terms describe how AI models are packaged, priced and procured. They matter because token pricing, caching and volume discounts can change the economics of a product more than a few benchmark points.
Example
Suppose you are comparing Llama 3.1 Turbo with another model for a production task. Input tokens is one of the factors behind the numbers you see: Llama 3.1 Turbo lists a 200,000-token context window, costs $4.17 per million input tokens and scores 72.2 on AIME 2025. Understanding the term helps you decide which of those differences actually matter for your workload.
How to evaluate it
- Check whether input tokens is defined the same way in the documentation you are reading.
- Ask which measurement or trade-off the term is describing before comparing numbers.
- Separate vendor claims from independently observed behaviour on your own data.
- Write down the definition your team uses so reviews and evaluations stay consistent.
Related terms
Related guides
FAQ
What does Input tokens mean?
Input tokens is a commercial or pricing concept in the AI market. It is part of the vocabulary teams use when they compare models, design prompts or review an AI system.
Why does Input tokens matter?
Business terms describe how AI models are packaged, priced and procured. They matter because token pricing, caching and volume discounts can change the economics of a product more than a few benchmark points.
How is Input tokens used in practice?
Suppose you are comparing Llama 3.1 Turbo with another model for a production task. Input tokens is one of the factors behind the numbers you see: Llama 3.1 Turbo lists a 200,000-token context window, costs $4.17 per million input tokens and scores 72.2 on AIME 2025. Understanding the term helps you decide which of those differences actually matter for your workload.