OpenRouter

OpenRouter brand colours

Extracted from the artwork and ranked by how much of the mark each covers — not from a brand book, so treat them as observed rather than official.

OpenRouter aggregates nearly every model in this category behind a single OpenAI-compatible endpoint, with automatic failover between upstream hosts, per-provider routing preferences and privacy filters that exclude hosts who train on prompts. You pay upstream rates plus a credit fee. It is the cheapest way to keep model choice a runtime decision instead of an architectural one.