{
 "id": "deepseek/deepseek-v4-pro",
 "slug": "deepseek-deepseek-v4-pro",
 "display": "DeepSeek: DeepSeek V4 Pro 0423",
 "listed": true,
 "first_seen": "2026-04-25",
 "last_seen": "2026-10-09",
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 ],
 "generated": "2026-10-09T11:30:13+00:00",
 "unit": "USD per 1M tokens; blended = (3 * input + output) / 4",
 "source": "OpenRouter public model listing via Wayback Machine snapshots (2023-07 to 2026-04) and LLMPI daily snapshots (2026-06 onward)"
}