Context
400K
Input
text
Output
text
Tool calling
Supported
About this model
GPT-5 Nano is a lightweight, low-latency language model designed for cost-efficient text generation, chat, and tool-calling workloads.
Input modalities
text
Accepted as model input
Providers
Available routing options for this model through OneInfer.
Available
Input tokens
$0.050 / 1M tokens
Output tokens
$0.400 / 1M tokens
Routing
OneInfer optimized
Pricing
Current OneInfer pricing for this model.
| Usage | Price |
|---|---|
| Input tokens | $0.050 / 1M tokens |
| Output tokens | $0.400 / 1M tokens |
| Cached input tokens | $0.0050 / 1M tokens |
Performance
Published evaluation results associated with this model.
coding
swe_bench_verified74.9
reasoning
aime_202594.6
gpqa_diamond89.4
API example
curl https://api.oneinfer.ai/v1/ula/chat/completions \
-H "Authorization: Bearer $JWT_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/gpt-5-nano",
"messages": [
{ "role": "user", "content": "Hello!" }
]
}'