Grok 4.5

xai/grok-4.5

xAI's latest Grok for chat, coding, agentic tools, and lower hallucination risk

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Context window: 500K
Input: Document · Image · Text
Output: Text
Released: 2026-07-08

Max output: 500K
Knowledge cutoff: 2026-02-01
Weights: Closed
Capabilities: Attachments, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

53.6/100

Coding: 47.3
Reasoning: 56.6
Professional work: 56.8
Knowledge & language: 55.7


CritPtGrok 4.5 (High)	Reasoning	Artificial Analysis	2026-11-05
CyberBench Patch v1.1	Coding	Vals AI	2026-11-05
Terminal-Bench 4.0 (AA rerun)Grok 4.5 (High)	Coding	Artificial Analysis	2026-11-05
SimpleQA Verified	Knowledge & language	Epoch AI	2026-11-05
ProgramBench	Coding	Vals AI	2026-11-05
SciCodeGrok 4.5 (High)	Coding	Artificial Analysis	2026-11-05
Vibe Code Bench v1.1	Coding	Vals AI	2026-11-05
GDPval-AA	Professional work	Artificial Analysis	2026-11-05

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ModelRegistry · Catalog updated 2026-11-05