Auto-generated comparison

OpenAI: GPT-4o (2024-11-20) vs xAI: Grok 4.20 Beta

xAI: Grok 4.20 Beta wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.

Side-by-side comparison

CapabilityOpenAI: GPT-4o (2024-11-20)xAI: Grok 4.20 BetaWinner
Context window
Maximum number of input tokens the model can attend to in a single request.
128K2M🏆 xAI: Grok 4.20 Beta
Input price (per 1M)
Cost per million input tokens billed by the provider.
$2.50$2.00🏆 xAI: Grok 4.20 Beta
Output price (per 1M)
Cost per million output tokens billed by the provider.
$10.00$6.00🏆 xAI: Grok 4.20 Beta
Tool / function calling
First-class support for emitting structured tool calls.
YesYesTie
Vision input
Accepts image inputs alongside text.
YesYesTie
Reasoning mode
Internal chain-of-thought / extended-thinking support.
Yes🏆 xAI: Grok 4.20 Beta

Frequently asked questions

Is OpenAI: GPT-4o (2024-11-20) better than xAI: Grok 4.20 Beta?

xAI: Grok 4.20 Beta wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.

What's the price difference between OpenAI: GPT-4o (2024-11-20) and xAI: Grok 4.20 Beta?

Input: $2.50 vs $2.00 per 1M tokens. Output: $10.00 vs $6.00 per 1M tokens.

What context windows do OpenAI: GPT-4o (2024-11-20) and xAI: Grok 4.20 Beta support?

OpenAI: GPT-4o (2024-11-20) supports up to 128K tokens. xAI: Grok 4.20 Beta supports up to 2M tokens.

Do both OpenAI: GPT-4o (2024-11-20) and xAI: Grok 4.20 Beta support tool calling?

OpenAI: GPT-4o (2024-11-20): yes. xAI: Grok 4.20 Beta: yes.

Compare OpenAI: GPT-4o (2024-11-20) with other models

Compare xAI: Grok 4.20 Beta with other models