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Grok 4.3

Last verified: June 17, 2026

$1.25/1M input · $2.50/1M output · 1.0M context · xAI

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Same Provider
Grok Build 0.1
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Pricing Details

xAIColossus 2 weights refresh + Agent Mode unlock May 18. Cached input: $0.31/1M. Batch: 50-80% of standard. Always-on reasoning. 1M context flat. Estimated tokens (different tokenizer).
Input / 1M tokens
$1.25
Output / 1M tokens
$2.5
Context Window
1.0M
Max Output
16K
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Price History

Launched at current price on 2026-04-30. No price changes recorded.

Frequently Asked Questions

Common questions about Grok 4.3 pricing and usage

Read More About Grok 4.3

xAI quietly swapped Grok 4.3's weights for Colossus-2-trained ones and switched on Agent Mode. Same endpoint, same $1.25 input, new build.
May 19, 2026 · 9 min read
Grok 4.3 quietly cut prices 40-60%, then shipped a voice cloner. The pricing math is now hard to ignore.
May 2, 2026 · 9 min read
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