For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
OpenAI: GPT-4.1 Nano — OpenAI. Context window 1,047,576 tokens. API pricing (per 1M tokens): Input $0.1, Output $0.4. License: Proprietary. LMArena 1,285. GPQA Diamond 48.9%.
| Provider | OpenAI |
|---|---|
| API model ID | openai/gpt-4.1-nano |
| Tier | Frontier |
| Context window | 1,047,576 tokens |
| Max output | 32,768 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $0.1 |
| API pricing (per 1M tokens) · Output | $0.4 |
| LMArena | 1,285 (gpt-4.1-nano-2025-04-14) |
| GPQA Diamond | 48.9% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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