2026-01-22
3 min
Fine-Tuning vs RAG: When Each Is Cheaper (And When It Isn't)
Fine-tuning has upfront cost; RAG has per-query cost. Break-even math, when to use which, and how to avoid the worst of both.
2026-01-12
3 min
Embedding Model Pricing: OpenAI, Cohere, Voyage Cost Comparison
RAG costs start with embeddings. Per-million-token pricing for text-embedding-3, Cohere embed-v3, Voyage—and when to switch providers to cut costs.
2026-01-07
3 min
Context Window Size vs Cost: Why 200K Tokens Isn't Free
Long context models charge more per token. When to use 8K vs 128K vs 1M—and how context length blows up RAG and agent bills.
2026-01-06
5 min
RAG Cost Breakdown: Vector DB and Context Overhead
A RAG app costing $3,400/month instead of $300. The breakdown: vector DB read units, context stuffing, and model selection. Practical fixes.
2026-01-02
4 min
Pinecone Serverless vs Weaviate Cloud: Cost Comparison
Vector DB pricing: storage is cheap, compute is not. Break-even analysis of Pinecone serverless vs fixed instances (Weaviate/Qdrant) for RAG workloads at scale.