AI API Pricing Guide: How to Compare LLM Costs
Learn how input tokens, output tokens, prompt caching, context windows, and pricing tiers affect AI API costs.
How should AI model API prices be compared?
Compare input, output, and cached-input prices against the same workload. Then confirm the model supports the required context window and capabilities.
Which AI model API is cheapest?
There is no universal cheapest model. The lowest total depends on input-to-output ratio, prompt caching, and required reasoning or multimodal features.
How current is AgentBuck pricing?
The structured catalog refreshes every six hours. Provider documentation remains the billing source of truth.