Grok 4.5
active
xAI
Specifications
Modalities
Context Window500K tokens
Max Output-
Training Cutoff-
Open SourceNo
Pricing (per 1M tokens)
Input$2.0000
Output$6.0000
Cache Read$0.3000
Benchmarks
Arena score (text)1465
Arena ratings: LMArena leaderboard dataset, CC BY 4.0, snapshot 2026-10-28.
MMLU-Pro-
SWE-Bench-
GPQA Diamond-
HumanEval-
ARC-AGI-
MATH-
API
Model ID
grok-4.5Sources
- xAI: Models and Pricing
model id, context window, price input, price output, price cache read · as of 2026-11-02
- xAI: Release notes
api available · as of 2026-11-02
- LMArena: Arena leaderboard dataset, text_style_control overall: Grok 4.5
elo rating · as of 2026-10-28