Author

Mert Batur

Co-Founder, Techsy.io

Articles by Mert Batur

236 articles

  1. LLM Router: Route Requests, Cut Costs 60% [2026]

    · 15 read

    An LLM router picks which model handles each API request, and most teams overbuild one. Five routing strategies, four runnable Python routers, and the worked cost math behind a 60% spend cut.

  2. Hybrid Search: BM25 vs Vector (and Why You Need Both)

    · 13 read

    BM25 finds your SKUs and error codes; vector search finds the paraphrased question that never uses those exact words. Here's how Reciprocal Rank Fusion combines both, with real 2025-2026 benchmark numbers and vendor-neutral Python code.

  3. MCP Evaluation: The 7-Assertion Harness We Wrote for the 2026-07-28 Spec

    · 15 read

    MCP revision 2026-07-28 removed the initialize handshake, renumbered three error codes, and made every request self-contained. Here are seven deterministic conformance assertions you can run on every push, plus the behavioral, flakiness, security, and CI layers that sit on top of them.