{
 "id": "deepseek/deepseek-v3.1-base",
 "slug": "deepseek-deepseek-v3-1-base",
 "display": "deepseek: deepseek-v3.1-base",
 "listed": false,
 "first_seen": "2025-08-25",
 "last_seen": "2025-10-03",
 "observations": 14,
 "repricings": 2,
 "current": {
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  "output": 1.0,
  "blended": 0.4375
 },
 "current_since": "2025-10-01",
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  "date": "2025-08-25"
 },
 "high": {
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  "date": "2025-10-01"
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 "at_all_time_low": false,
 "new_low": false,
 "change_points": [
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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)"
}