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xAI: Grok 4.3

🇺🇸 xAI · Grok 4.3

Input Price $1.25 per million tokens NT$40.0
Output Price $2.50 per million tokens NT$80.0
Context Window 1M tokens
OpenRouter Route Price Please verify with official pricing pages
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Overview

xAI: Grok 4.3 is a large language model API from xAI, part of its Grok 4.3 model family. Priced at $1.25 per million input tokens and $2.50 per million output tokens, it occupies the mid-range, balancing capability against running cost. Output tokens cost about 2× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1M-token context window (≈1,500 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image, File input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 38 (B grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $1.25 NT$40.0
Output per 1M tokens $2.50 NT$80.0
Cached Input per 1M tokens $0.200 NT$6.4
Web Search per search $0.0050 NT$0.16

Provider
xAI
Model Family
Grok 4.3
Version String
x-ai/grok-4.3
Status
Active
Modality
Text, Image, File
Context Window
1,000,000 tokens
Output Limit
— tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Agentic Index 24 D Measured: 2026-07-01
Coding Index 42 B Measured: 2026-07-01
Intelligence Index 38 B Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 64.3% B Measured: 2026-07-01
GPQA Diamond 90.1% S Measured: 2026-07-01
HLE 35.0% S Measured: 2026-07-01
IFBench 81.3% A Measured: 2026-07-01
MMMU Pro 78.1% A Measured: 2026-07-01
Non-Hallucination 75.0% Measured: 2026-07-01
Omniscience Accuracy 34.6% Measured: 2026-07-01
SciCode 47.3% A Measured: 2026-07-01
Tau2 97.7% Measured: 2026-07-01
TerminalBench 37.9% Measured: 2026-07-01

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 20.1s Measured: 2026-07-01
Output Speed 110 t/s Measured: 2026-07-01
Response Time 24.7s Measured: 2026-07-01

Use Case Analysis

Model strengths, weaknesses, and ideal use cases based on benchmarks and official documentation

Strength

  • Most Intelligent & Fastest xAI most intelligent and fastest model built to date. Recommended for all use cases. Official
  • Affordable Pricing $1.25 per 1M input tokens and $2.50 per 1M output tokens. Competitive pricing for frontier capabilities. Official

Best For

  • General Purpose AI Tasks Recommended for all use cases including chat, coding, images, videos, and voice. Official

Weakness

  • Knowledge Cutoff Knowledge cutoff of November 2024. No access to realtime events without search tools enabled. Official

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter
Output $2.50 OpenRouter
Input $1.25 OpenRouter
Web Search $0.0050 OpenRouter
Cached Input $0.200 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • xAI: Grok 4.3 Input price: $1.25/M tokens
  • xAI: Grok 4.3 Output price: $2.5/M tokens
  • Context window: 1,000,000 tokens
  • Provider: xAI
  • Model family: Grok 4.3
  • Modalities: Text, Image, File
  • Data source: OpenRouter, updated daily