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AI model family

DeepSeek V4 model family

DeepSeek's V4 API family, with model identifiers exposed through its model-list endpoint and documented lifecycle changes.

Editorially reviewedVerified 2026-08-112 official or primary sources

What the family record covers

DeepSeek's API documentation lists the model identifiers currently available to an account and records model changes in a dated changelog. This makes the API identifier and verification date more reliable catalog keys than a persistent marketing label.

AAA.win does not repeat provider benchmark scores as an independent ranking. Evaluate the current identifier on the same held-out inputs, schema validators, review rubric, and regional network path used by your application.

Documented access paths

  • DeepSeek API
  • OpenAI-compatible API surface documented by the provider
  • Current model identifiers should be discovered from official documentation or the Models endpoint

Capabilities to verify

  • Thinking and non-thinking behavior under the documented current identifiers
  • Structured output and tool compatibility in the selected client integration
  • Chinese, English, and domain vocabulary on representative data
  • Service behavior, change notices, and migration steps before production adoption

Decision questions

  1. Which model ID does the Models endpoint return at the time of the pilot?
  2. What migration trigger is used when an alias or compatibility route changes?
  3. Do data handling, region, and service terms match the organization's requirements?

Evaluation cautions

  • Legacy aliases and current model identifiers can change over time.
  • API compatibility does not imply identical model behavior or feature support.
  • Official benchmark claims should remain labeled as provider claims until independently reproduced.

Related decisions

Move from a family name to the product, provider, workflow, comparison, or protocol that defines the real choice.

Sources checked

Open the original pages before relying on a time-sensitive product decision.

  1. DeepSeek Models APIDeepSeek
  2. DeepSeek API change logDeepSeek
Version · v4.3.4-indexnow-root-proof

Latest releases

IndexNow root-proof request compatibility

After v4.3.3, the exact root-level {key}.txt proof returned HTTP 200, but a full request carrying keyLocation still returned HTTP 403; a minimal homepage request with the same production key and no keyLocation returned HTTP 202. This release omits that field, while the automatic full run and idempotent rerun remain deployment checks.

IndexNow key-proof compatibility

Changed IndexNow verification to the official root-level {key}.txt convention after the first production notification returned HTTP 403; revalidation remains pending, while the website, sitemaps, and Bing sitemap processing are unaffected.

Bing sitemap discovery and IndexNow change notifications

Prepared canonical sitemap discovery for Bing and added automatic IndexNow change notifications while keeping segmented sitemaps authoritative and making no claim that a notified URL has been crawled or indexed.

View all releases