OpenRouter's openrouter/free API route charges $0 per 1M input and output tokens and selects from currently available free models. It supports text and image input with text output; the selected model and its context window vary by request, with an advertised upper context limit of 200,000 tokens. EU in-region routing is not currently supported.
Use-case fit and limitations from the existing resource record.
Non-deterministic model selection; actual context varies by routed model; availability and free model pool can change; EU in-region routing unavailable.
Available
Non-price resource facts only; pricing, history, and evidence stay in their own sections.
Decision visuals remain traceable to the existing source and verification record.
Independent ranking · native prices · evidence-linked · commercial relationships isolated from scoring and publication.