This model is deprecated
GPT-4.1 nano and can no longer be run here. Its evaluation results and details remain available for reference. Try GPT-5.6 Luna instead.
GPT-4.1 nano, released by OpenAI in April 2025, is the smallest and most cost-efficient member of the GPT-4.1 family. It is multimodal, supporting both text and image inputs, and retains the family’s extended 1 million-token context window—allowing it to handle large documents or codebases despite its lightweight design. Its training knowledge extends to June 2024.
GPT-4.1 nano prioritizes speed and affordability over raw reasoning power. While less capable than GPT-4.1 and GPT-4.1 mini, it is well-suited for high-volume or latency-sensitive workloads such as classification, autocomplete, content moderation, and lightweight assistants. This makes it an attractive option for developers seeking scalable deployment where efficiency is more critical than deep reasoning.
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Usage
Past 30 DaysNot available
Not in Playground
GPT-4.1 nano has been deprecated by its provider and can no longer be evaluated on the current benchmark. The legacy Vision Evals results below are preserved for reference. See the current Vision Evals
| Category | Passed | Score |
|---|---|---|
| Object Understanding | 9 / 14 | 64.3% |
| Spatial Understanding | 8 / 19 | 42.1% |
| Defect Detection | 6 / 15 | 40% |
| Document Understanding | 3 / 9 | 33.3% |
| Object Counting | 1 / 10 | 10% |
| Category | Passed | Score |
|---|---|---|
| VQA & Extraction | 39 / 60 | 65% |
| Text Recognition | 19 / 30 | 63.3% |
| Focused Scene OCR | 54 / 99 | 54.5% |
| License Plate Recognition | 15 / 30 | 50% |
| Handwritten Math | 4 / 10 | 40% |
Scores based on a single evaluation run · Methodology
View all legacy Vision Evals results →GPT-4.1 nano costs $0.100 per 1M input tokens and $0.400 per 1M output tokens.
Pricing updated Aug 7, 2026
Estimated cost per task vs. Visual Understanding score, for this model and others ranked near it. Upper-left is the sweet spot (high quality, low cost). Based on Vision Evals (legacy) results.
6 of 7 models plotted · 1 not yet evaluated
| Model | Score | Median tokens | Est. cost / task | Compare |
|---|---|---|---|---|
| Claude Haiku 4.5 | 58.2% | 2.3K | $0.0030 | Compare |
| GPT-5 Nano | 58.2% | 2.7K | $0.0003 | Compare |
| Qwen3.5 397B A17B | 58.2% | 1.5K | $0.0006 | Compare |
| Gemini 2.5 Flash | 55.2% | 476 | $0.0005 | Compare |
| Gemini 2.5 Flash-Lite | 53.7% | 301 | <$0.0001 | Compare |
| GPT-4.1 Nano(this model) | 40.3% | 2.9K | — | — |
| Kimi K2.5 | 35.8% | 2.7K | $0.0031 | Compare |
Other models worth comparing for similar use cases.
Other versions in the same family as GPT-4.1 nano.
License terms and commercial-use guidance for GPT-4.1 nano.
This model is proprietary. The author retains all rights, and use of the model is governed by their specific terms of service or license agreement.
Commercial use depends on the terms set by the model author. Most proprietary commercial models require a paid subscription, API key, or per-call billing. Check the provider’s pricing and terms-of-service for details.
License information is provided as a guide and is not legal advice.
Yes. GPT-4.1 nano accepts image input, and on Roboflow's previous vision benchmark it passed 40.3% of visual understanding tasks (#69 of 77) and scored 57.2% on OCR.
GPT-4.1 nano has been deprecated by its provider and can no longer be run, so it is not part of Roboflow's current Vision Evals. Its results from the previous benchmark are preserved on this page for reference.