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Model comparison Synced Apr 6, 2026

OpenAI: GPT-4.1 vs xAI: Grok 4.20

Side-by-side comparison of OpenAI: GPT-4.1 and xAI: Grok 4.20. Compare pricing, context window, capabilities, and find out which is better for your workflow.

Verdict

strong confidence

xAI: Grok 4.20 leads overall

xAI: Grok 4.20 leads in price and context window and capabilities, making it the stronger choice for most workflows. OpenAI: GPT-4.1 remains competitive with advantages in max output.

Best for with OpenAI: GPT-4.1

Long-form content generation

Best for with xAI: Grok 4.20

Budget-conscious workflowsLong document processingMulti-modal tasks

Side-by-side

Technical specifications

OpenAI: GPT-4.1 xAI: Grok 4.20
Provider OpenAI xAI
Input price $2/M $2/M
Output price $8/M $6/M
Context window 1.0M 2.0M
Max output 33K N/A
Capabilities
Tool useVision
Tool useVisionReasoning
Released Apr 14, 2025 Mar 31, 2026
View OpenAI: GPT-4.1 profile View xAI: Grok 4.20 profile

Scoring breakdown

How each dimension compares

Price

xAI: Grok 4.20 leads

OpenAI: GPT-4.1

$8/M tokens

xAI: Grok 4.20

$6/M tokens

Context Window

xAI: Grok 4.20 leads

OpenAI: GPT-4.1

1.0M tokens

xAI: Grok 4.20

2.0M tokens

Capabilities

xAI: Grok 4.20 leads

OpenAI: GPT-4.1

2/4

xAI: Grok 4.20

3/4

Max Output

OpenAI: GPT-4.1 leads

OpenAI: GPT-4.1

33K tokens

xAI: Grok 4.20

N/A

Recency

OpenAI: GPT-4.1

Apr 2025

xAI: Grok 4.20

Mar 2026

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