Model Comparison

Grok-2 Image 1212 vs Grok 4.5Which is better in 2026?

Comparing Grok-2 Image 1212 and Grok 4.5 across benchmarks, pricing, and capabilities.

Verdict: Grok-2 Image 1212 vs Grok 4.5 — which is better?

Grok-2 Image 1212 (by xAI) and Grok 4.5 (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.

Grok 4.5 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok-2 Image 1212 if…

  • you are already invested in the xAI ecosystem

Choose Grok 4.5 if…

  • you process long inputs — it offers a 500,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok-2 Image 1212 and Grok 4.5don'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

Grok 4.5 accepts 500,000 input tokens compared to Grok-2 Image 1212's 131,072 tokens.

xAI
Grok-2 Image 1212
Input131,072 tokens
Output- tokens
xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok 4.5 supports multimodal inputs, whereas Grok-2 Image 1212 does not.

Grok 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-2 Image 1212

Text
Images
Audio
Video

Grok 4.5

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.

Grok-2 Image 1212

Proprietary

Closed source

Grok 4.5

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-2 Image 1212 was released on 2024-12-12, while Grok 4.5 was released on 2026-07-16.

Grok 4.5 is 19 months newer than Grok-2 Image 1212.

Grok-2 Image 1212

Dec 12, 2024

1.6 years ago

Grok 4.5

Jul 16, 2026

1 weeks ago

1.6yr newer

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while Grok-2 Image 1212's cutoff date is not specified.

We can confirm Grok 4.5's training data extends to 2026-02-01, but cannot make a direct comparison without Grok-2 Image 1212's cutoff date.

Grok-2 Image 1212

—

Grok 4.5

Feb 2026

Provider Availability

Grok-2 Image 1212 is available from xAI. Grok 4.5 is available from xAI.

Grok-2 Image 1212

xai logo
xAI

Grok 4.5

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI

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

xAI
Larger context window (500,000 tokens)
Supports multimodal inputs

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok-2 Image 1212 and Grok 4.5 side-by-side, then vote on the output you prefer.

Grok-2 Image 1212
✓ Preferred
Grok 4.5
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok-2 Image 1212
xAI
Grok 4.5

FAQ

Common questions about Grok-2 Image 1212 vs Grok 4.5.

Which is better, Grok-2 Image 1212 or Grok 4.5?

Grok-2 Image 1212 (xAI) and Grok 4.5 (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 Grok-2 Image 1212 compare to Grok 4.5 in benchmarks?

Grok 4.5 scores GPQA: 93.0%, Terminal-Bench 2.1: 83.3%, Artificial Analysis Coding Agent Index v1.1: 76.0%, SWE-Bench Pro: 64.7%, AA-Omniscience Index: 63.0%.

What are the context window sizes for Grok-2 Image 1212 and Grok 4.5?

Grok-2 Image 1212 supports 131K tokens and Grok 4.5 supports 500K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-2 Image 1212 and Grok 4.5?

Key differences include context window (131K vs 500K), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

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