Grok 4.5
xAI's Grok model for chat, coding, agentic tools, and lower hallucination risk
ECI STANDING#32 of 266
SCORE153.92152.49–156.04 CI
FRONTIER LAGLaunched 6.9 months behindScores about what GPT-5.2 Pro did in December 2025.
SCORES LIKE THESE MODELSDeepSeek V4 Flash 0731DeepSeek · Jul 2026154.49Gemini 3.6 FlashGoogle DeepMind · Jul 2026154.33Qwen3.7-MaxAlibaba · May 2026153.73GPT-5.2OpenAI · Dec 2025153.51
Full Epoch Capabilities Index ranking ↗From the lab
Launch announcement · Jul 16, 2026Introducing Grok 4.5RELEASE DATEJul 8, 2026
WEIGHTSClosed weights
CONTEXT WINDOW500K
MAX OUTPUT500K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.