Single LLM Call
One prompt in, one response out. No tools, no loops.
API Calls per Conversation
Low
1
Mid
1
High
1
Best Use Cases
Simple Q&A chatbotsText classificationContent generation (one-shot)Summarization
Cost Drivers
- •Token count is the only variable — no tool overhead, no loops
- •Cost scales linearly with conversation volume
- •Model choice is the biggest lever (15x range between Haiku and Opus)
Monthly Cost Scenarios
100/day
Haiku 4.5
$30-60/mo
100/day
Sonnet 4.5
$90-180/mo
1,000/day
Haiku 4.5
$300-600/mo
Optimization Tips
- →Use prompt caching if your system prompt exceeds 1,024 tokens
- →Route simple queries to cheaper models (Haiku or GPT-4o Mini)
- →Use batch API for non-real-time workloads (50% discount)
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