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GPT-4 vs Grok-1.5V

GPT-4 and Grok-1.5V are closely matched at 3.3 and -0.6 on the LLM Stats Score.

OpenAI · xAI · Updated for 2026

Which is better?

GPT-4 and Grok-1.5V are closely matched on the overall LLM Stats Score at 3.3 and -0.6.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose GPT-4

  • you want predictable pricing at $30.00/M input and $60.00/M output

Choose Grok-1.5V

  • you want the most recent training data — it shipped Apr 2024

At a glance

The differences that matter most.

GPT-4
OpenAI
Grok-1.5V
xAI
Core performance indexes
LLM Stats Score
3.3
#297
-0.6
#319
Reasoning
3.4
#288
0.1
#305
Cost, coverage & limits
Benchmark wins
—
—
Input price
$30.00 / M
— / M
Output price
$60.00 / M
— / M
Context window
32,768
—

Individual benchmarks

12 reported for GPT-4 · 7 for Grok-1.5V

No common benchmarks found

GPT-4 and Grok-1.5Vdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-4 specifies input context (32,768 tokens). Only GPT-4 specifies output context (32,768 tokens).

OpenAI
GPT-4
Input32,768 tokens
Output32,768 tokens
xAI
Grok-1.5V
Input- tokens
Output- tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-4 and Grok-1.5V support multimodal inputs.

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

GPT-4

Text
Images
Audio
Video

Grok-1.5V

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-4

Proprietary

Closed source

Grok-1.5V

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4 was released on 2023-06-13, while Grok-1.5V was released on 2024-04-12.

Grok-1.5V is 10 months newer than GPT-4.

GPT-4

Jun 13, 2023

3.2 years ago

Grok-1.5V

Apr 12, 2024

2.4 years ago

10mo newer

Knowledge Cutoff

When training data ends

GPT-4 has a documented knowledge cutoff of 2022-12-31, while Grok-1.5V's cutoff date is not specified.

We can confirm GPT-4's training data extends to 2022-12-31, but cannot make a direct comparison without Grok-1.5V's cutoff date.

GPT-4

Dec 2022

Grok-1.5V

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against GPT-4 and Grok-1.5V side-by-side, then vote on the output you prefer.

GPT-4
✓ Preferred
Grok-1.5V
Open in Playground

FAQ

Common questions about GPT-4 vs Grok-1.5V.

Which is better, GPT-4 or Grok-1.5V?

GPT-4 and Grok-1.5V are closely matched on the LLM Stats Score at 3.3 and -0.6. GPT-4 is made by OpenAI and Grok-1.5V is made by xAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-4 compare to Grok-1.5V in benchmarks?

GPT-4 scores AI2 Reasoning Challenge (ARC): 96.3%, HellaSwag: 95.3%, Uniform Bar Exam: 90.0%, SAT Math: 89.0%, LSAT: 88.0%. Grok-1.5V scores AI2D: 88.3%, DocVQA: 85.6%, TextVQA: 78.1%, ChartQA: 76.1%, RealWorldQA: 68.7%.

What are the context window sizes for GPT-4 and Grok-1.5V?

GPT-4 supports 33K tokens and Grok-1.5V supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4 and Grok-1.5V?

Key differences include LLM Stats Score (3.3 vs -0.6). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4 and Grok-1.5V?

GPT-4 is developed by OpenAI and Grok-1.5V is developed by xAI.

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