GPT-4.1 Nano vs GPT-5.5
GPT-4.1 Nano leads in 2 of 8 categories
Arena ELO
Tie
Cheaper
GPT-4.1 Nano
Faster
Tie
Detailed Comparison
| Category | GPT-4.1 Nano | GPT-5.5 |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Window | 128K | 128K |
| Input Price ($/1M) | $0.1 WIN | N/A |
| Output Price ($/1M) | $0.4 WIN | N/A |
| Arena ELO | N/A | N/A |
| Coding | N/A | N/A |
| Reasoning | N/A | N/A |
| Speed (tokens/sec) | N/A | N/A |
| Open Source | No | No |
Frequently Asked Questions
Which has a larger context window?
GPT-4.1 Nano supports 128K context, while GPT-5.5 supports 128K.
Is GPT-4.1 Nano or GPT-5.5 open source?
GPT-4.1 Nano is proprietary. GPT-5.5 is proprietary.
Related Articles
18 AI benchmarks now rank GPT-5.5, Claude, Gemini
GPT-5.5 scores 62.5 on Every’s engineer test
GPT-5.5 tops Artificial Analysis with score of 60
Copilot Studio shifts to GPT-4.1 by default
Why GPT-5.5 Should Be Your Default Coding LLM in 2026
Why GPT-5.5 Is Not the Victory Lap OpenAI Wants You to Believe
More Comparisons
GPT-4.1 Nano vs Claude Opus 4.5GPT-4.1 Nano vs Llama 4 ScoutGPT-4.1 Nano vs Claude Sonnet 4.6GPT-4.1 Nano vs Claude Haiku 4.5GPT-4.1 Nano vs GLM-5.2GPT-4.1 Nano vs Qwen 3.6GPT-4.1 Nano vs GPT-4oGPT-4.1 Nano vs DeepSeek R1GPT-5.5 vs Claude Opus 4.5GPT-5.5 vs Llama 4 ScoutGPT-5.5 vs Claude Sonnet 4.6GPT-5.5 vs Claude Haiku 4.5GPT-5.5 vs GLM-5.2GPT-5.5 vs Qwen 3.6GPT-5.5 vs GPT-4oGPT-5.5 vs DeepSeek R1