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GPT-4.1 nano vs LFM2.5-VL-3B

LFM2.5-VL-3B significantly outperforms across most benchmarks.

OpenAI · Liquid AI · Updated for 2026

Which is better?

GPT-4.1 nano outperforms in 0 benchmarks, while LFM2.5-VL-3B is better at 2 benchmarks (IFEval, Multi-IF). LFM2.5-VL-3B significantly outperforms across most benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose GPT-4.1 nano

  • you want predictable pricing at $0.10/M input and $0.40/M output

Choose LFM2.5-VL-3B

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

GPT-4.1 nano
OpenAI
LFM2.5-VL-3B
Liquid AI
Benchmark wins
0 of 2
2 of 2
Input price
$0.10 / M
— / M
Output price
$0.40 / M
— / M
Context window
1,047,576
—
Released
Apr 2025
Aug 2026
License
Proprietary
LFM Open License v1.0

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4.1 nano outperforms in 0 benchmarks, while LFM2.5-VL-3B is better at 2 benchmarks (IFEval, Multi-IF).

LFM2.5-VL-3B significantly outperforms across most benchmarks.

Tue Aug 25 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

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
Liquid AI
LFM2.5-VL-3B
Input- tokens
Output- tokens
Tue Aug 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4.1 nano and LFM2.5-VL-3B support multimodal inputs.

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

GPT-4.1 nano

Text
Images
Audio
Video

LFM2.5-VL-3B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4.1 nano is licensed under a proprietary license, while LFM2.5-VL-3B uses LFM Open License v1.0.

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

GPT-4.1 nano

Proprietary

Closed source

LFM2.5-VL-3B

LFM Open License v1.0

Open weights

Release Timeline

When each model was launched

GPT-4.1 nano was released on 2025-04-14, while LFM2.5-VL-3B was released on 2026-08-12.

LFM2.5-VL-3B is 16 months newer than GPT-4.1 nano.

GPT-4.1 nano

Apr 14, 2025

1.4 years ago

LFM2.5-VL-3B

Aug 12, 2026

1 weeks ago

1.3yr newer

Knowledge Cutoff

When training data ends

GPT-4.1 nano has a documented knowledge cutoff of 2024-05-31, while LFM2.5-VL-3B'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 LFM2.5-VL-3B's cutoff date.

GPT-4.1 nano

May 2024

LFM2.5-VL-3B

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against GPT-4.1 nano and LFM2.5-VL-3B side-by-side, then vote on the output you prefer.

GPT-4.1 nano
✓ Preferred
LFM2.5-VL-3B
Open in Playground

FAQ

Common questions about GPT-4.1 nano vs LFM2.5-VL-3B.

Which is better, GPT-4.1 nano or LFM2.5-VL-3B?

LFM2.5-VL-3B significantly outperforms across most benchmarks. GPT-4.1 nano is made by OpenAI and LFM2.5-VL-3B is made by Liquid AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4.1 nano compare to LFM2.5-VL-3B in benchmarks?

GPT-4.1 nano scores MMLU: 80.1%, IFEval: 74.5%, CharXiv-D: 73.9%, MMMLU: 66.9%, Multi-IF: 57.2%. LFM2.5-VL-3B scores DocVQA: 91.1%, POPE: 88.7%, RefCOCO-avg: 87.9%, TextVQA: 84.3%, OCRBench: 84.2%.

What are the context window sizes for GPT-4.1 nano and LFM2.5-VL-3B?

GPT-4.1 nano supports 1.0M tokens and LFM2.5-VL-3B 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 LFM2.5-VL-3B?

Key differences include licensing (Proprietary vs LFM Open License v1.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4.1 nano and LFM2.5-VL-3B?

GPT-4.1 nano is developed by OpenAI and LFM2.5-VL-3B is developed by Liquid AI.

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