GPT-4o vs Grok-4.20 Multi-Agent Beta Comparison

Comparing GPT-4o and Grok-4.20 Multi-Agent Beta across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-4o and Grok-4.20 Multi-Agent Beta don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-4.20 Multi-Agent Beta costs less

For input processing, GPT-4o ($2.50/1M tokens) is 1.3x more expensive than Grok-4.20 Multi-Agent Beta ($2.00/1M tokens).

For output processing, GPT-4o ($10.00/1M tokens) is 1.7x more expensive than Grok-4.20 Multi-Agent Beta ($6.00/1M tokens).

In conclusion, GPT-4o is more expensive than Grok-4.20 Multi-Agent Beta.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

GPT-4o

Input tokens$2.50

Output tokens$10.00

Best providerAzure

Grok-4.20 Multi-Agent Beta

Input tokens$2.00

Output tokens$6.00

Best providerxAI

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Context Window

Maximum input and output token capacity

Grok-4.20 Multi-Agent Beta accepts 2,000,000 input tokens compared to GPT-4o's 128,000 tokens. Grok-4.20 Multi-Agent Beta can generate longer responses up to 30,000 tokens, while GPT-4o is limited to 16,384 tokens.

GPT-4o

Input128,000 tokens

Output16,384 tokens

Grok-4.20 Multi-Agent Beta

Input2,000,000 tokens

Output30,000 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4o and Grok-4.20 Multi-Agent Beta support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-4o

Text

Images

Audio

Video

Grok-4.20 Multi-Agent Beta

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-4o

Proprietary

Closed source

Grok-4.20 Multi-Agent Beta

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while Grok-4.20 Multi-Agent Beta was released on 2026-03-09.

Grok-4.20 Multi-Agent Beta is 19 months newer than GPT-4o.

GPT-4o

Aug 6, 2024

1.6 years ago

Grok-4.20 Multi-Agent Beta

Mar 9, 2026

5 days ago

1.6yr newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GPT-4o is available from Azure, OpenAI. Grok-4.20 Multi-Agent Beta is available from xAI. The availability of providers can affect quality of the model and reliability.