Cost

PremiumPick the right classifier…

After a cross-encoder reranker was added on every query, costs doubled: keep the quality, cut the bill

Predict the prompt token count before and after context compression

At what point does self-hosting on vLLM beat a managed LLM API?

PremiumHow does semantic caching…

What does prefix caching store, and which workloads benefit most?

A timestamp at the top of every prompt tanks the cache hit rate: find the mistake

Is trimming the prompt usually the biggest cost lever on a chat endpoint?

Select the levers that cut output token spend without hurting answer quality

PremiumDesign a routing tier…

Which signal best decides when to escalate a query to a larger model?

Price this call: 1,500 input tokens and 600 output tokens on a given rate card

When an async batch API beats the real time endpoint

Select all dimensions that meaningfully drive cost on a managed vector database bill in 2026.

When does inflating the system prompt actually lower cost per call?

'Prompt caching cuts our bill by 90 percent across the board', what's overclaimed?

A teammate randomized system prompts per user and expects the prompt cache to still help, what's wrong?

Greedy decoding and temperature sampling: does one cost more per token than the other?

Bytes, characters, tokens: which one gets billed and how do they relate?

Why does a reasoning model like DeepSeek V4 quietly inflate the output token bill?

Pick Claude Sonnet 4.6 over Opus 4.7, when is that the right call?

PremiumPick the workload where…

LoRA vs full FT on 7B + 10k examples: order of magnitude cost comparison

PremiumHow do Anthropic and…

Which prompt construction pattern is most likely to actually hit the provider's prompt cache?