#model-routing

The Fable 5 export shutdown showed single-vendor AI can halt your business overnight. A four-step second-source playbook with open-weight failover backups.

NVIDIA shipped Nemotron 3 Ultra, a 550B open MoE reasoning model with weights, data and recipes under a permissive license. It runs fast but trails Kimi K2.6.

MiniMax M3 lands at 5-17x lower cost, but Opus 4.8 leads SWE-bench Pro and GPT-5.5 wins Terminal-Bench. A full three-way agentic coding routing matrix.

The LLM gateway is now critical AI infrastructure. Compare LiteLLM, Portkey, Cloudflare, Vercel, and OpenRouter on caching, routing, and build-vs-buy economics.

Gemini 3.5 Flash beats Claude Opus 4.8 on MCP-Atlas and Finance Agent at a third of the price — but a 61% hallucination rate complicates the routing call.

A FinOps playbook for cutting AI inference spend without quality loss: model routing, prompt and KV caching, batching, quantization, and unit-cost tracking.

Hands-on deep dive into Zed's AI coding — Parallel Agents, channels, threads, performance-first editor, model routing, and the workflows enabled.

Hands-on deep dive into Continue.dev — the open-source AI coding assistant, model routing, context providers, slash commands, IDE integrations.

Hands-on deep dive into Cursor 3 — Agents and Cloud Agents, Composer evolution, MCP integration, model routing, and what's new vs Cursor 2.

OpenRouter Fusion sends queries to multiple AI models, analyzes outputs, and fuses optimal results. Deep Research agents preferred Fusion to their own outputs.