Model Comparison

IBM Granite 4.0 Tiny Preview vs Grok 4.5Which is better in 2026?

Comparing IBM Granite 4.0 Tiny Preview and Grok 4.5 across benchmarks, pricing, and capabilities.

Verdict: IBM Granite 4.0 Tiny Preview vs Grok 4.5 — which is better?

IBM Granite 4.0 Tiny Preview (by IBM) 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.

Choose IBM Granite 4.0 Tiny Preview if…

  • you need open weights you can self-host or fine-tune

Choose Grok 4.5 if…

  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

IBM Granite 4.0 Tiny Preview 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

Only Grok 4.5 specifies input context (500,000 tokens).

IBM
IBM Granite 4.0 Tiny Preview
Input- tokens
Output- tokens
xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Sun Jul 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok 4.5 supports multimodal inputs, whereas IBM Granite 4.0 Tiny Preview does not.

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

IBM Granite 4.0 Tiny Preview

Text
Images
Audio
Video

Grok 4.5

Text
Images
Audio
Video

License

Usage and distribution terms

IBM Granite 4.0 Tiny Preview is licensed under Apache 2.0, while Grok 4.5 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

IBM Granite 4.0 Tiny Preview

Apache 2.0

Open weights

Grok 4.5

Proprietary

Closed source

Release Timeline

When each model was launched

IBM Granite 4.0 Tiny Preview was released on 2025-05-02, while Grok 4.5 was released on 2026-07-16.

Grok 4.5 is 15 months newer than IBM Granite 4.0 Tiny Preview.

IBM Granite 4.0 Tiny Preview

May 2, 2025

1.2 years ago

Grok 4.5

Jul 16, 2026

3 days ago

1.2yr newer

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while IBM Granite 4.0 Tiny Preview'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 IBM Granite 4.0 Tiny Preview's cutoff date.

IBM Granite 4.0 Tiny Preview

—

Grok 4.5

Feb 2026

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

IBM
Has open weights
xAI
Larger context window (500,000 tokens)
Supports multimodal inputs

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against IBM Granite 4.0 Tiny Preview and Grok 4.5 side-by-side, then vote on the output you prefer.

IBM Granite 4.0 Tiny Preview
✓ Preferred
Grok 4.5
Open in Playground
AI Model Comparison Table
Feature
IBM
IBM Granite 4.0 Tiny Preview
xAI
Grok 4.5

FAQ

Common questions about IBM Granite 4.0 Tiny Preview vs Grok 4.5.

Which is better, IBM Granite 4.0 Tiny Preview or Grok 4.5?

IBM Granite 4.0 Tiny Preview (IBM) 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 IBM Granite 4.0 Tiny Preview compare to Grok 4.5 in benchmarks?

IBM Granite 4.0 Tiny Preview scores AttaQ: 86.1%, HumanEval: 82.4%, HumanEval+: 78.3%, GSM8k: 70.1%, IFEval: 63.0%. 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 IBM Granite 4.0 Tiny Preview and Grok 4.5?

IBM Granite 4.0 Tiny Preview supports an unknown number of 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 IBM Granite 4.0 Tiny Preview and Grok 4.5?

Key differences include multimodal support (no vs yes), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes IBM Granite 4.0 Tiny Preview and Grok 4.5?

IBM Granite 4.0 Tiny Preview is developed by IBM and Grok 4.5 is developed by xAI.

Related comparisons