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GPT 5 Nano (latest) API price
openai/gpt-5-nano
The cheapest GPT 5 Nano (latest) API is $0.05/M input at Official - OpenAI - all 3 providers compared below, per 1M tokens.
Rolling name - always points to the newest snapshot of this model. The pinned snapshots are priced separately: GPT 5 Nano (08-07 snapshot).
SmallOpenAI400K context3 sellers
Input
$0.05
per 1M tokens · Official - OpenAI
Output
$0.40
per 1M tokens · Official - OpenAI
Where to buy it
Cheapest GPT 5 Nano (latest) API providers compared - 3 sellers, from $0.05/M.
| Provider | Input $/M | Output $/M | Cached in |
|---|---|---|---|
| Official - OpenAI | 0.050cheapest | 0.400 | 0.0050 |
| Batch | 0.025 | 0.200 | 0.0025 |
| Flex | 0.025 | 0.200 | 0.0025 |
| OpenRouter (aggregator) | 0.050 | 0.400 | 0.0050 |
| OrcaRouter (aggregator) | 0.050 | 0.400 | - |
Against its tier
- This model$0.45
- Cheapest · Qwen 3.7 Flash$0.16
- Tier median · GPT 5.6 Luna Pro$0.70
- Dearest · Claude Haiku 4.5$6.00
#7 of 18 small · cheaper than 65%
Details
- Context window
- 400K400,000 tokens
- Developer
- OpenAI
- Intelligence
- 20.1high
- Sellers
- 3
- Cached input
- $0.005where the source publishes one
- Cheapest at
- Official - OpenAI
- Combined
- $0.45in + out per 1M
- Last checked
- 2026-08-28