AI, Tools & Workflows

Build OpenRouter model fallbacks with compatible models, clear failure rules, validation, cost controls, and a practical failover test plan.

OpenRouter API guide covering setup, Python and JavaScript, pricing, routing, fallbacks, privacy, tools, JSON, vision, and error handling.

Use OpenRouter embeddings for RAG and semantic search with model selection, chunking, permission filters, evaluation, and versioned indexes.

What is OpenRouter? Learn how its AI gateway connects models and providers, handles routing and billing, and supports reliable API workflows.

Use the OpenRouter vision API for images and PDFs. Learn request formats, model selection, cost controls, privacy, and evidence validation.

Understand OpenRouter pricing, credit-purchase fees, BYOK charges, free limits, and a practical method for estimating API costs.

Use OpenRouter free models wisely. Compare the free router and :free variants, check quotas, test capabilities, and plan for changing availability.

Create and secure an OpenRouter API key, set a spending cap, store it safely, test requests, monitor usage, and replace exposed credentials.

Build an OpenRouter Python client with secure keys, timeouts, bounded retries, Retry-After handling, usage logs, and clear errors.

Fix an OpenRouter 429 error by checking gateway and provider limits, honoring Retry-After, controlling concurrency, and bounding retries.

Control OpenRouter model routing by provider, capability, price, speed, privacy, and reliability, then verify behavior with a test matrix.

Use OpenRouter structured outputs with JSON Schema, compatible models, local validation, bounded repair, and deliberate fallback policies.