OpenAIGPT-5 nano
The fastest, most cost-efficient GPT-5, for simple high-volume tasks.
Source: OpenAI models, OpenAI pricing
Pricing
Every billing leg from the live catalog, in USD per 1M tokens.
| Billing leg | Rate | Batch |
|---|---|---|
| Input | $0.05 / M | $0.025 / M |
| Output | $0.4 / M | $0.2 / M |
| Cache read | $0.005 / M | $0.0025 / M |
Cost calculator
Billing-grade math over the rate card above, including the thinking tokens most estimates miss.
Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.
Compare providers
The same model, priced across every platform that serves it. Lowest combined in/out rate is flagged.
| Platform | Input / M | Output / M | Cache read / M | Batch | Access |
|---|---|---|---|---|---|
OpenAILowest | $0.05 | $0.4 | $0.005 | ✓ | First-party API |
Azure OpenAI | $0.05 | $0.4 | $0.005 | ✓ | Direct |
Azure OpenAI · Data zone | $0.055 | $0.44 | $0.0055 | ✓ | Direct |
Price history
Has this model gotten cheaper or more expensive?
| Effective | Input / Output | Status |
|---|---|---|
| April 20, 2026 – July 10, 2026 | $0.05 / $0.4 | past |
| July 10, 2026 | $0.05 / $0.4 | current |
More from OpenAI
Other models from the same provider.
Stop estimating. Track it.
SuperPenguin meters every GPT-5 nano call your team makes, prices it with this exact rate card, and shows spend by feature, customer, and team.
Rates are generated from SuperPenguin's live pricing catalog.