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Grok 4.3

xAI's new Grok 4.3 model features strong agentic tool calling with minimal hallucinations, supports non-reasoning mode, 1M token context, and competitive pricing. The release also includes Voice API, Imagine API, batch pricing, and model retirement notices.

SourceHacker News AIAuthor: webninja
Grok 4.3
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Key points

  • Grok 4.3 enables agentic tool calling with optional reasoning, 1M context
  • Pricing: $1.25/1M input, $2.50/1M output tokens
  • New Voice API, Imagine API, and batch API at half standard rates
  • Legacy models including grok-4-1-fast to retire May 15, 2026

Highlights and analysis are generated automatically and may contain errors. Check the original source.

Grok 4.3 | AI News Hub