GPT 4.1 Nano
OpenAI
Key facts · verified Oct 29, 2026
GPT 4.1 Nano is an OpenAI model. Status: Deprecated - shutting down 23 October 2026; replacement: gpt-5.6-luna. Its API price is $0.10 per million input tokens and $0.40 per million output tokens. Its context window is 1M tokens. It ranks #260 on LMArena's text leaderboard (Elo 1322, read 1 Nov 2026). Source: developers.openai.com.
GPT 4.1 Nano (gpt-4.1-nano) is a model from OpenAI with a 1M-token context window, priced at $0.10 per million input tokens and $0.40 per million output tokens. OpenAI announced its deprecation on 22 April 2026 and will shut down the gpt-4.1-nano alias and the gpt-4.1-nano-2025-04-14 snapshot on 23 October 2026, naming gpt-5.6-luna as the replacement. 1322 Elo (rank 260)
Pricing & specs checkedSource: vendor documentation · checked Oct 29, 2026LMArena: 1322 Elo (rank 260) · source · retrieved Nov 1, 2026
Full Specifications
$0.10 / $0.40 per million tokens | |
|---|---|
| Identity | |
| Developer | OpenAI |
| Status | Deprecated - shutting down 23 October 2026; replacement: gpt-5.6-luna |
| Licence | Proprietary |
| Self-hostable | No |
| Cost | |
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $0.175 / 1M tokens |
| Input price | $0.100 / 1M tokens |
| Output price | $0.400 / 1M tokens |
| Capacity | |
| Context window | 1M tokens |
| Measured quality | |
| LMArena Elo | 1322 (checked Nov 2026) |
| LMArena rank | Rank 260 |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 7554 |