OpenAI: GPT-5 Nano vs OpenAI: GPT-6 Luna Pro
OpenAI: GPT-5 Nano is cheaper on output tokens, while OpenAI: GPT-6 Luna Pro offers a larger context window. Choose OpenAI: GPT-5 Nano or OpenAI: GPT-6 Luna Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | OpenAI: GPT-5 Nano | OpenAI: GPT-6 Luna Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $0.05 | $0.10 |
| Output / 1M tokens | $0.40 | $0.50 |
| Context window | 400K | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Aug 2025 | — |
FAQ
Is OpenAI: GPT-5 Nano or OpenAI: GPT-6 Luna Pro cheaper?
OpenAI: GPT-5 Nano is cheaper on output tokens ($0.40 vs $0.50 per 1M).
Which has the larger context window, OpenAI: GPT-5 Nano or OpenAI: GPT-6 Luna Pro?
OpenAI: GPT-6 Luna Pro has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.