How much does Grok 4.3 cost?

Grok 4.3 costs $1.25 per million input tokens and $2.5 per million output tokens. The blended average is $1.88 per million tokens.

What is the context window of Grok 4.3?

Grok 4.3 supports a context window of 1000K tokens (1,000,000 tokens) and can generate up to 33K output tokens per request.

What is Grok 4.3 best for?

Grok 4.3 is best for: Agentic tasks & real-time info. It supports chat, vision, function_calling, code, reasoning capabilities.

Grok 4.3 — Pricing, Benchmarks & Specs

Grok 4.3

xAIflagship New

xAI's May 6 2026 flagship. 1M context, native video input, and a ~40% input price cut over Grok 4.20. Artificial Analysis Intelligence Index 53; outperforms Opus 4.7 ~1.26x on agentic Vending-Bench.

Context Window

tokens

Max Output

33K

tokens

Input Price

$1.25

per 1M tokens

Output Price

$2.5

per 1M tokens

Speed

tokens/sec

Released

May 2026

2026-05-06

Blended Cost

$1.88

per 1M tokens

Value Score

49.6

quality per $

Capabilities

ChatVisionFunction CallingCode GenerationReasoning

Benchmarks

Quality Index

MMLU Pro

88.6

HumanEval (Coding)

91.2

MATH

89.4

Arena ELO

1496

Try in Playground Use via Swfte Connect xAI Docs

Compare With

Quality: 91·$45.00/1M

About Grok 4.3

Grok 4.3 is a flagship AI model by xAI, released on May 6, 2026. It supports a context window of 1000K tokens and can generate up to 33K output tokens.

At $1.25 per million input tokens and $2.5 per million output tokens, its blended cost of $1.88/1M tokens puts it in the mid-range pricing tier. Its value score of 49.6 reflects the balance of quality and cost.

Using Grok 4.3 with Swfte

Access Grok 4.3 through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try Grok 4.3 in our AI Playground before integrating.