OpenAI GPT-4.1 Nano vs TheDrummer UnslopNemo 12B
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- GPT-4.1 Nano is 2.3× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 1M tokens.
- GPT-4.1 Nano's best provider was more reliable over 24 h: 100% vs 99.41%.
- GPT-4.1 Nano is the newer model (released 2025-04-14).
| GPT-4.1 Nano | UnslopNemo 12B | |
|---|---|---|
| Vendor | OpenAI | TheDrummer |
| Released | 2025-04-14 | 2024-11-08 |
| Input / 1M | $0.10 | $0.40 |
| Output / 1M | $0.40 | $0.40 |
| Cached input / 1M | $0.03 | — |
| Blended / 1M (3:1) | $0.175 | $0.40 |
| Context | 1M | 1M |
| Max output | 943K | 819K |
| Accepts | text, image, file | text |
| Reasoning | No | No |
| Providers on OpenRouter | 3 | 1 |
| Cheapest provider, output | $0.40 | $0.40 |
| Best provider uptime, 24 h | 100% | 99.41% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | — |
Cost calculator
GPT-4.1 Nano
$12.00 per month$0.40 per day
UnslopNemo 12B
$30.00 per month$1.00 per day
GPT-4.1 Nano saves $18.00 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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