Model Comparison

GPT-5.4 vs Grok-2 Image 1212Which is better in 2026?

Comparing GPT-5.4 and Grok-2 Image 1212 across benchmarks, pricing, and capabilities.

Verdict: GPT-5.4 vs Grok-2 Image 1212 — which is better?

GPT-5.4 (by OpenAI) and Grok-2 Image 1212 (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-5.4 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-5.4 if…

  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Mar 2026

Choose Grok-2 Image 1212 if…

  • you are already invested in the xAI ecosystem
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5.4 and Grok-2 Image 1212don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

GPT-5.4 accepts 1,000,000 input tokens compared to Grok-2 Image 1212's 131,072 tokens. Only GPT-5.4 specifies output context (128,000 tokens).

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
xAI
Grok-2 Image 1212
Input131,072 tokens
Output- tokens
Thu Jun 11 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.4 supports multimodal inputs, whereas Grok-2 Image 1212 does not.

GPT-5.4 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5.4

Text
Images
Audio
Video

Grok-2 Image 1212

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-5.4

Proprietary

Closed source

Grok-2 Image 1212

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Grok-2 Image 1212 was released on 2024-12-12.

GPT-5.4 is 15 months newer than Grok-2 Image 1212.

GPT-5.4

Mar 5, 2026

3 months ago

1.2yr newer
Grok-2 Image 1212

Dec 12, 2024

1.5 years ago

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-5.4 is available from OpenAI. Grok-2 Image 1212 is available from xAI.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Grok-2 Image 1212

xai logo
xAI
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (1,000,000 tokens)
Supports multimodal inputs
xAI

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
xAI
Grok-2 Image 1212

FAQ

Common questions about GPT-5.4 vs Grok-2 Image 1212.

Which is better, GPT-5.4 or Grok-2 Image 1212?

GPT-5.4 (OpenAI) and Grok-2 Image 1212 (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GPT-5.4 compare to Grok-2 Image 1212 in benchmarks?

GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%.

What are the context window sizes for GPT-5.4 and Grok-2 Image 1212?

GPT-5.4 supports 1.0M tokens and Grok-2 Image 1212 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5.4 and Grok-2 Image 1212?

Key differences include context window (1.0M vs 131K), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 and Grok-2 Image 1212?

GPT-5.4 is developed by OpenAI and Grok-2 Image 1212 is developed by xAI.

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