AI Radar

Grok 3 mini

Status unknown · Language, Reasoning

Grok 3 mini is a smaller xAI language model, unveiled alongside Grok 3 on 19 February 2025 with a beta reasoning model, Grok 3 mini (Think). xAI presented it as cost-efficient reasoning for STEM tasks that need less world knowledge; the Grok 3 models became generally available on the xAI API on 3 April 2025. [1] [2] Primary source

Timeline of Grok 3 mini →

Claims and evidence

  • Announced Primary source[1]first section
  • Released The release note says the Grok 3 models became generally available on the API without naming Grok 3 mini separately; the announcement had said Grok 3 and Grok 3 mini would come to the API. Primary source[2]April 2025, Apr 3 [3]Our path of progress, 2025: Grok 3 API
  • Status Status unknowngrok-3-mini is not named in the May 15, 2026 retirement guide and the current xAI models overview no longer lists it; no primary source available for this review states whether or when it was retired. Evidence incompleteNo source
  • Successor of Grok-2 mini EditorialEditorial link along the mini tier: the announcement introduces Grok 3 mini next to Grok 3 without naming a predecessor; Grok-2 mini was the previous small model. Primary source[1]
  • Change · Reasoning Announced with a beta reasoning model, Grok 3 mini (Think), trained with large-scale reinforcement learning.Compared with Grok-2 mini Primary source[1]Thinking Harder: Test-time Compute and Reasoning
  • Change · Efficiency xAI positions it as cost-efficient reasoning for STEM tasks that do not need as much world knowledge.Compared with Grok-2 mini Primary source[1]
  • Feature Reasoning modeAnnounced as the beta reasoning model Grok 3 mini (Think). Primary source[1]Thinking Harder: Test-time Compute and Reasoning
  • Parameters Not disclosedNot disclosed by xAI. No claim madeNo source
  • Access API Primary source[1]Grok 3 API Coming Soon [2]April 2025, Apr 3

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None recorded.

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