---
title: "grok-4.3 — LLM-TEST.com"
url: /models/grok-4-3/
canonical_url: https://llm-test.com/models/grok-4-3/
language: en
type: model
summary: "The most affordable model in the current Grok line, aimed at cost-sensitive production use. Keeps real-time X grounding while trimming price."
last_updated: "2026-11-05"
---

# grok-4.3

_xAI · Balanced_

The most affordable model in the current Grok line, aimed at cost-sensitive production use. Keeps real-time X grounding while trimming price.

## At a glance

- Released: Mar 18, 2026
- Provider: xAI
- Context window: 256,000 tokens
- Max output: 64,000 tokens
- Modalities: Text + image → text
- Knowledge cutoff: February 2026
- API model ID: `grok-4.3`
- License: Proprietary (API only)

## Pricing

- Standard: $1.25 input / $2.50 output per 1M tokens
- Long context: $2.50 input / $5 output per 1M tokens
- Example: a 1,500-token prompt + 650-token answer ≈ $0.003 (standard)

## What's new vs grok-4.2 (January 2026)

- Lower price and faster responses than 4.2
- Reduced reasoning depth versus higher tiers

## Best use cases

- **Cost-sensitive apps** — Serves high-volume features where price is the priority.
- **Simple reasoning** — Handles routine analysis and drafting adequately.
- **Live-data lookups** — Answers current-events questions with X grounding.

## Strengths

- Low cost
- Real-time grounding
- Fast

## Limitations

- Limited deep reasoning
- No audio or video input

## Where to get access

- Consumer app: Grok (grok.com and the X apps) — https://grok.com
- API: the xAI Console — https://console.x.ai
- Also available: Grok on X (Premium)
- Docs: https://docs.x.ai

Full comparison and live pricing: https://llm-test.com/ · directory: https://llm-test.com/models/