Today's price · per 1M tokens
Input
$2.00
per 1M tokens
Output
$6.00
per 1M tokens
Blended
$3.00
blended $/1M — 3:1 weighted input:output
Price receipt
We read xAI's own pricing page on and found grok-4.5 listed with a price on the same row — that read is where the number above comes from. We keep the page text we read; its content hash is 427827311d.
Overview
An Opus-class frontier model from xAI built for coding, agentic tasks, and knowledge work, trained on the 1.5T V9 foundation with Cursor data. ~2x token efficiency vs comparable leaders, 500K context, configurable reasoning effort. $2/$6 per 1M tokens.
Capabilities
struck through = not supportedBenchmark performance
accuracy % · higher is better- AA Intelligence Index: 38.8 (Artificial Analysis composite across reasoning, knowledge and coding evals)
- AA-Omniscience Index: 25.3 (−100–100)
- GDPval-AA v2: 1526.4 ELO (Real-world work tasks, human baseline = 1000)
- LMSYS Chatbot Arena: 1468.1 ELO (Human preference)
- Ranks #41 of 100 benchmarked models by average score
- Ranks #40 of 195 comparably-measured models by percentile score, across 9 independent measurements
- Ranks #127 of 195 comparably-tested models by normalized performance per dollar
- Strongest at GPQA Diamond — 92.9%, #19 of 73
88.2 tokens/sec output
Source: ARC Prize verified leaderboard, ARC-AGI-2 semi-private eval, High effort, Artificial Analysis, Artificial Analysis (text-only, no tools, high) · updated · See full rankings →
Specifications
- Provider
- xAI
- Context window
- 500K tokens
- Modality
- text, image
- Parameters
- Proprietary
- Open source
- No — proprietary
- Released
- Status
- Current
- Last updated
- Tags
Availability verified: — listed on xAI's own page