Sub-100ms Latency gpt 5 nano api
Experience the fastest gpt response times available. Optimized for real-time gpt interactions and high-speed data streams.
GPT 5 Nano
The GPT 5 Nano API is OpenAI's fastest multimodal model, offering 128k context and native audio processing. Perfect for high-volume orchestration and real-time support, it delivers superior reasoning at just $0.05 per million input tokens.
API Usage Examples
curl --request POST "https://gptproto.com/v1/chat/completions" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-5-nano",
"messages": [
{
"role": "user",
"content": "Hello"
}
]
}'GPT 5 Nano pricing
Chat, coding agents & document work. Priced per 1M tokens — input, cached input and output are billed separately. GPTProto is 30% below official rates.
Your usage
OpenAI · ≈ 148M tokens/mo (48M cached)
OpenRouter
List + 5.5% credit fee
$10.3812
per month
Input (non-cached)$1.688
Cache read$0.2532
Output$8.44
OpenAI
Direct from OpenAI (list price)
$9.84
per month
Input (non-cached)$1.6
Cache read$0.24
Output$8
BEST VALUE
GPTProto
30% off official
$6.888
per month
After discount$6.888
Effective$6.888
Monthly cost by source
OpenRouter
$10.3812
OpenAI
$9.84
GPTProto
$6.888
Save $2.95 / month
on GPTProto vs OpenAI (−30%)
Annual savings ≈ $35.42 · pay as you go
OpenRouter costs include its ~5.5% credit purchase fee. GPTProto applies a per-model discount (10–30% off) and your bonus credits are also spent at discounted rates — savings compound. Estimates assume a 60% cache hit rate.
Related Models
All Models
| Model | Input → Output | ||||
|---|---|---|---|---|---|
| 400K | $0.04 / $0.28 per 1M | $0.0035 / $0.0035 per 1M | Input: TextInput: ImageInput: Document Output: Text | |
| — | — | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: TextInput: Image Output: Text | |
| 1.05M | $0.79 / $2.38 per 1M | — / $0.04 per 1M | Input: Text Output: Text | ||
| 1.05M | $8.00 / $40.00 per 1M | $10.00 / $0.80 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text | ||
| 1M | $9.00 / $45.00 per 1M | $11.25 / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1M | $1.80 / $5.40 per 1M | $2.25 / $0.23 per 1M | Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text | ||
| — | 1.31M | $0.15 / $0.50 per 1M | — / $0.03 per 1M | Input: TextInput: ImageInput: VideoInput: Document Output: Text | |
| — | 1.05M | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: TextInput: Image Output: Text | |
| 1.31M | $1.26 / $3.96 per 1M | — / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 500K | $1.20 / $3.60 per 1M | — / $0.30 per 1M | Input: TextInput: Image Output: Text | ||
| 1M | $1.80 / $5.40 per 1M | $2.25 / $0.23 per 1M | Input: TextInput: ImageInput: VideoInput: Document Output: Text | ||
| 1M | $4.50 / $22.50 per 1M | $5.63 / $0.45 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $2.70 / $13.50 per 1M | $0.27 / $0.27 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.16 / $0.96 per 1M | $0.20 / $0.02 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $1.60 / $9.60 per 1M | $2.00 / $0.16 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $3.20 / $16.00 per 1M | $4.00 / $0.32 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 500K | $1.20 / $3.60 per 1M | $0.30 / $0.30 per 1M | Input: TextInput: Image Output: Text | ||
| 1M | $1.80 / $9.00 per 1M | $2.25 / $0.18 per 1M | Input: TextInput: Document Output: Text | ||
| 1.05M | $0.48 / $0.96 per 1M | $0.10 / $0.10 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $1.26 / $3.96 per 1M | $0.23 / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| — | $1.00 / $8.00 per 1M | $0.10 / $0.10 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1M | $0.36 / $1.44 per 1M | $0.07 / $0.07 per 1M | Input: TextInput: Document Output: Text | ||
| — | 1.05M | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: Text Output: Text | |
| 1M | $0.75 / $1.50 per 1M | $0.12 / $0.12 per 1M | Input: TextInput: Image Output: Text | ||
| 1.05M | $24.00 / $144.00 per 1M | — | Input: TextInput: ImageInput: Document Output: Text | ||
| 262K | $0.85 / $3.60 per 1M | $0.14 / $0.14 per 1M | Input: TextInput: Document Output: Text | ||
| 205K | $0.24 / $0.96 per 1M | $0.30 / $0.02 per 1M | Input: TextInput: Document Output: Text | ||
| 262K | $0.54 / $2.70 per 1M | $0.09 / $0.09 per 1M | Input: TextInput: Document Output: Text | ||
| 262K | $0.10 / $0.97 per 1M | — | Input: TextInput: Image Output: Text | ||
| 262K | $0.10 / $0.97 per 1M | — | Input: TextInput: Image Output: Text | ||
| 262K | $0.02 / $0.18 per 1M | — | Input: TextInput: Image Output: Text |
GPT 5 Nano API Key Performance Features
Technical highlights of the gpt 5 nano api that drive efficiency and gpt performance.
Native gpt 5 nano Multimodal Support
Directly process audio and images within the gpt 5 nano api. This gpt feature eliminates the need for separate models.
Parallel gpt 5 nano api Tool Calls
Trigger up to 10 function calls simultaneously with the gpt 5 nano api. Perfect for complex gpt automation and agents.
Affordable gpt 5 nano api Pricing
Save on gpt costs with $0.05 per 1M input tokens. The gpt 5 nano api offers the best price-to-performance in the gpt family.
GPT 5 Nano API Frequently Asked Questions
Find answers about the gpt 5 nano api, including pricing, performance, multimodal features, and how to integrate it into your production apps.
What is the typical latency of the gpt 5 nano api?
The gpt 5 nano api is built for speed, achieving a sub-100ms time-to-first-token. Internal benchmarks show it is 40% faster than the previous gpt 4o-mini tier, making it ideal for gpt-powered real-time applications.
Does gpt 5 nano support native audio processing?
Yes, unlike earlier small gpt models, gpt 5 nano processes audio inputs directly. This gpt 5 nano api capability preserves emotional prosody and ambient context without requiring an extra gpt transcription step.
How much does the gpt 5 nano api cost per token?
Pricing for the gpt 5 nano api is extremely competitive at $0.05 per 1M input tokens and $0.20 per 1M output tokens. This gpt tier also offers 50% discounts for cached gpt inputs and batch processing via our gpt API.
Is the gpt 5 nano api good for structured data?
The gpt 5 nano api is optimized for structured output, outperforming competitors like Llama in complex JSON extraction. It reliably triggers up to 10 parallel tool calls in a single gpt turn without losing accuracy.
What is the context window for gpt 5 nano?
This gpt 5 nano api provides a 128,000 token context window. While it handles large gpt prompts efficiently, it is most accurate when the gpt target information is clearly defined within the conversation flow.
How do I migrate my app to the gpt 5 nano api?
Migrating to the gpt 5 nano api is simple. Just update the model parameter to gpt-5-nano in your gpt code. The gpt 5 nano api is 100% backward compatible with existing gpt SDKs and schemas.
Related Articles
Guides, comparisons, and updates related to this model.
All Articles
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