Quick Answer
The answer is the per-token pricing model. Amazon Bedrock charges for foundation model inference based on the number of tokens processed, where a token represents a chunk of text—roughly four characters or 0.75 words—and costs are calculated separately for input tokens (your prompt) and output tokens (the model’s response). This granular, usage-based approach makes Bedrock cost-effective for variable workloads, as you only pay for what you consume rather than a flat hourly or monthly rate. On the AWS Certified AI Practitioner AIF-C01 exam, this question tests your understanding of Bedrock’s consumption-based billing, often appearing as a straightforward multiple-choice item where distractors like “per-hour” or “per-request” are common traps. Remember that unlike traditional API calls charged per request, Bedrock’s pricing scales with the actual text volume processed. A helpful memory tip: think of tokens as tiny tolls—every word you send in and every word the model sends out costs a small fee, so “input and output tokens” are the two lanes on Bedrock’s pricing highway.
This AIF-C01 practice question tests your understanding of applications of foundation models. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which pricing model does Amazon Bedrock use for foundation model inference?
Per-request
Why wrong: While there is a request-based component, the primary meter is tokens.
Per-hour instance
Why wrong: Per-hour pricing is used for provisioned instances, not Bedrock's on-demand mode.
Per-GB storage
Why wrong: Storage pricing applies to data storage, not inference.
Per-token
Bedrock is pay-per-token for both input and output.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Per-token
Amazon Bedrock charges per token processed (input and output), making it cost-effective for variable usage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Per-request
Why it's wrong here
While there is a request-based component, the primary meter is tokens.
Per-hour instance
Why it's wrong here
Per-hour pricing is used for provisioned instances, not Bedrock's on-demand mode.
Per-GB storage
Why it's wrong here
Storage pricing applies to data storage, not inference.
Per-token
Why this is correct
Bedrock is pay-per-token for both input and output.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Applications of Foundation Models — This question tests Applications of Foundation Models — Read the scenario before looking for a memorised answer..
The correct answer is: Per-token — Amazon Bedrock charges per token processed (input and output), making it cost-effective for variable usage.
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 23, 2026
This AIF-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AIF-C01 exam.
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