Cheapest long-context LLM leaderboard: the 50 lowest-cost AI models with a 200,000-token context window or larger, ranked by inference cost per token — Claude 5, Gemini 3, GPT-5, Llama 4 Scout and more across 70+ providers. Input, output and cache USD per 1M tokens with exact context window and max output tokens joined in. Refreshed hourly.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://modelprices.xyz/llm/cheapest/long-context' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://modelprices.xyz/llm/cheapest/long-context'
Endpoint: https://modelprices.xyz/llm/cheapest/long-context. Operated by modelprices.xyz, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
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