{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "deepseek",
  "model": "deepseek-chat",
  "name": "DeepSeek Chat",
  "aliases": [],
  "description": "For two years this was the DeepSeek API: a single moving id that always pointed at whatever the current chat model happened to be. It carried V2 in May 2024, then V2.5, V3, V3.1 and V3.2, so code written in 2024 kept working through five model generations without an edit. V4 ended that. DeepSeek shipped explicit ids, gave the alias three months, and switched it off on 24 July 2026.",
  "deprecated_on": "2026-04-24",
  "shutdown_on": "2026-07-24",
  "status": "retired",
  "replacements": [
    {
      "provider": "deepseek",
      "model": "deepseek-v4-flash",
      "recommended": true,
      "note": "Through the transition deepseek-chat routed to V4-Flash with thinking off. Swapping the id alone is not equivalent: on deepseek-v4-flash the `thinking.type` parameter defaults to `enabled`, so you get reasoning tokens, slower responses and a larger bill unless you send `\"thinking\": {\"type\": \"disabled\"}`.",
      "external": false
    }
  ],
  "sources": [
    {
      "url": "https://api-docs.deepseek.com/news/news260424/",
      "title": "DeepSeek V4 Preview Release",
      "accessed": "2026-08-03"
    },
    {
      "url": "https://api-docs.deepseek.com/updates/",
      "title": "DeepSeek API change log",
      "accessed": "2026-08-03"
    },
    {
      "url": "https://api-docs.deepseek.com/api/create-chat-completion",
      "title": "DeepSeek Create Chat Completion",
      "accessed": "2026-08-03"
    }
  ],
  "last_verified": "2026-08-03",
  "computed_status": "retired",
  "asOf": "2026-08-03"
}