GPT-5 nano vs GPT-5.1
GPT-5 nano costs 96% less at typical usage ($0.14 vs $3.44 per 1M tokens). GPT-5.1 scores higher on 11 of 11 tasks.
| Spec | GPT-5 nano | GPT-5.1 |
|---|---|---|
| Input /1M | $0.05 | $1.25 |
| Output /1M | $0.40 | $10.0 |
| Typical /1M | $0.14 | $3.44 |
| Context window | 400k | 400k |
| Speed | Blazing | Brisk |
| Privacy | Standard | Standard |
| Open weights | No | No |
GPT-5 nano
Steady since we started tracking (Jul 13, 2026)
GPT-5.1
Steady since we started tracking (Jul 13, 2026)
Quality by task
Coding72/94
Agents68/93
Reasoning74/96
Writing76/92
Chat80/93
Classify82/88
Extract80/89
Summarize80/91
Translate80/90
Vision78/94
General76/94
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Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.