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Grok 4.3

Closed

Grok 4.3 is an AI model from xAI.

Publisher
xAI
Family
Grok
Context
1M
Input
Output
License
proprietary
Released
30 Apr 2026

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Notes

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Attribution

Benchmark scores
AALiveBenchVals AI
Attribution policy →
Context
1M
Input
$1.25
/1M tok
Output
$2.50
/1M tok
Blended
$1.56
#335/ 414/1M · 3:1
Speed
137
#72/ 414tok/s
Cache read
$0.20
0.16x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 24 evals across 10 domains - best 84.3% on LiveBench - Math · #18 of 52

Reported eval scores

24
CorpFin v268.5
TaxEval v270.8
Finance Agent (v2)37.7
MortgageTax48.3
LiveBench - Language73.6
LiveBench - Coding69.9
IFBench47.6
Terminal-Bench (Hard)18.9
LiveBench - Math84.3
LiveBench - Reasoning70.8
LiveBench - Data Analysis55.8
LiveBench - Instruction Following62.7
LiveBench69.5
Humanity's Last Exam (HLE)6.5
Vals Index46.6
SciCode37.4
GPQA Diamond65.8
τ²-bench (Tau²-bench)65.8
Vibe Code Bench v1.119.4
MedScribe74.4
MedCode38.1
ProofBench11
Vals Multimodal Index43.4
SAGE19.7