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openai/gpt-5-nano

About this model

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "openai/gpt-5-nano",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

0.166 TND

per 1M tokens

Output tokens

1.329 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 0.831 TND.

Specifications

Provider
OpenAI
Context window
400,000 tokens
Input modality
Text
Added
Aug 7, 2025
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputs