Model Comparison

GPT-4.1 nano vs IBM Granite 4.0 Tiny PreviewWhich is better in 2026?

GPT-4.1 nano significantly outperforms across most benchmarks.

Verdict: GPT-4.1 nano vs IBM Granite 4.0 Tiny Preview — which is better?

GPT-4.1 nano (by OpenAI) and IBM Granite 4.0 Tiny Preview (by IBM) 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-4.1 nano outperforms in 2 benchmarks (IFEval, MMLU), while IBM Granite 4.0 Tiny Preview is better at 0 benchmarks. GPT-4.1 nano significantly outperforms across most benchmarks.

Choose GPT-4.1 nano if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks

Choose IBM Granite 4.0 Tiny Preview if…

  • you want the most recent training data — it shipped May 2025
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4.1 nano outperforms in 2 benchmarks (IFEval, MMLU), while IBM Granite 4.0 Tiny Preview is better at 0 benchmarks.

GPT-4.1 nano significantly outperforms across most benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4.1 nano specifies input context (1,047,576 tokens). Only GPT-4.1 nano specifies output context (32,768 tokens).

OpenAI
GPT-4.1 nano
Input1,047,576 tokens
Output32,768 tokens
IBM
IBM Granite 4.0 Tiny Preview
Input- tokens
Output- tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4.1 nano supports multimodal inputs, whereas IBM Granite 4.0 Tiny Preview does not.

GPT-4.1 nano can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4.1 nano

Text
Images
Audio
Video

IBM Granite 4.0 Tiny Preview

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4.1 nano is licensed under a proprietary license, while IBM Granite 4.0 Tiny Preview uses Apache 2.0.

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

GPT-4.1 nano

Proprietary

Closed source

IBM Granite 4.0 Tiny Preview

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-4.1 nano was released on 2025-04-14, while IBM Granite 4.0 Tiny Preview was released on 2025-05-02.

IBM Granite 4.0 Tiny Preview is 1 month newer than GPT-4.1 nano.

GPT-4.1 nano

Apr 14, 2025

1.3 years ago

IBM Granite 4.0 Tiny Preview

May 2, 2025

1.2 years ago

2w newer

Knowledge Cutoff

When training data ends

GPT-4.1 nano has a documented knowledge cutoff of 2024-05-31, while IBM Granite 4.0 Tiny Preview's cutoff date is not specified.

We can confirm GPT-4.1 nano's training data extends to 2024-05-31, but cannot make a direct comparison without IBM Granite 4.0 Tiny Preview's cutoff date.

GPT-4.1 nano

May 2024

IBM Granite 4.0 Tiny Preview

—

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (1,047,576 tokens)
Supports multimodal inputs
Higher IFEval score (74.5% vs 63.0%)
Higher MMLU score (80.1% vs 60.4%)
IBM
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-4.1 nano and IBM Granite 4.0 Tiny Preview side-by-side, then vote on the output you prefer.

GPT-4.1 nano
✓ Preferred
IBM Granite 4.0 Tiny Preview
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-4.1 nano
IBM
IBM Granite 4.0 Tiny Preview

FAQ

Common questions about GPT-4.1 nano vs IBM Granite 4.0 Tiny Preview.

Which is better, GPT-4.1 nano or IBM Granite 4.0 Tiny Preview?

GPT-4.1 nano significantly outperforms across most benchmarks. GPT-4.1 nano is made by OpenAI and IBM Granite 4.0 Tiny Preview is made by IBM. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4.1 nano compare to IBM Granite 4.0 Tiny Preview in benchmarks?

GPT-4.1 nano scores MMLU: 80.1%, IFEval: 74.5%, CharXiv-D: 73.9%, MMMLU: 66.9%, Multi-IF: 57.2%. IBM Granite 4.0 Tiny Preview scores AttaQ: 86.1%, HumanEval: 82.4%, HumanEval+: 78.3%, GSM8k: 70.1%, IFEval: 63.0%.

What are the context window sizes for GPT-4.1 nano and IBM Granite 4.0 Tiny Preview?

GPT-4.1 nano supports 1.0M tokens and IBM Granite 4.0 Tiny Preview 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-4.1 nano and IBM Granite 4.0 Tiny Preview?

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

Who makes GPT-4.1 nano and IBM Granite 4.0 Tiny Preview?

GPT-4.1 nano is developed by OpenAI and IBM Granite 4.0 Tiny Preview is developed by IBM.

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