Task classification market share

Returns the market-share breakdown of OpenRouter traffic by task classification (e.g. code generation, web search, summarization) over a trailing time window. Each classification reports its share of classified sampled requests (`usage_share`) and classified sampled token volume (`token_share`) as fractions between 0 and 1. The unclassified `other` bucket is excluded. Absolute volumes are not exposed because the underlying data is sampled. Each classification also includes a `models` array listing the top models by request volume within that classification, with their within-tag usage and token shares. Classifications are grouped into macro-categories (Code, Data, Agent, General) with aggregate shares provided for each. Authenticate with any valid OpenRouter API key (same key used for inference). Rate-limited to 30 requests/minute per key and 500 requests/day per account. When republishing or quoting this data, cite as: "Source: OpenRouter (openrouter.ai/rankings), as of {as_of}."