GPT-5 Nano

OpenAI

OpenAI's smallest GPT-5 model. Built for speed and cost efficiency on high-volume tasks.

Model highlights
  • Low-latency responses
  • Cost-efficient processing
  • Strong general capabilities
  • Multi-turn conversations
  • Great for high-volume use
Modalities
IntextimageOuttext
Input / output
$0.05 / $0.40USD per 1M tokens
Context
400K
Providers
Live

Playground

Preparing playground

Providers

primary1.2s100%

Performance

Request success
100%

Response latency estimates

Request success

Text-model timing and speed, plus API request success. Daily latency percentiles are estimates. Your request logs

API

POST/api/v1/chat/completionsOpenAI-compatible
gpt-5-nano
curl https://www.ninjachat.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $NINJACHAT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5-nano",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choiceresponse_formatimage_url content partsreasoningreasoning_effort

Pricing

Input
$0.05/M tokens
Cached input
$0.005/M tokens
Output
$0.40/M tokens

Published USD rates. Actual cost depends on input, output, cache usage and request options.