the402 endpoint detail

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modelprices.xyz cheapest million-token-context

https://modelprices.xyz/llm/cheapest/million-token-context

answers 402

Cheapest million-token-context LLM leaderboard: every AI model with a 1,000,000-token context window or larger, ranked by inference cost per token — Gemini 3 Pro, Gemini 3 Flash, Llama 4 Scout, GPT-5 long-context tiers and more. Input, output and cache USD per 1M tokens with exact context window and max output joined in. Answers 'what is the cheapest model that fits my whole corpus?' Refreshed hou

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x63a20fa244d3E6a8902121E99704b7F857dc6EBB
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
162 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:21:02.235Z (32d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmodelprices.xyz%2Fllm%2Fcheapest%2Fmillion-token-context"