GPT-4.1 Nano

openaiopenai/gpt-4.1-nano

Fastest, most cost-efficient version of GPT-4.1. Excels at instruction following and tool calling with a 1M token context window and minimal latency.

Context Length

1.0M

Max Output

33K

Input Price

$0.120/ 1M tokens

Output Price

$0.480/ 1M tokens

Modalities

textimage→text

Pricing Breakdown

Type	Rate
Input	$0.120 / 1M tokens
Output	$0.480 / 1M tokens

Supported Parameters

temperaturemax_tokenstop_ptoolstool_choiceresponse_formatstop

API Usage Examples

cURL

curl https://api.therouter.ai/v1/chat/completions   -H "Content-Type: application/json"   -H "Authorization: Bearer $THE_ROUTER_API_KEY"   -d '{
    "model": "openai/gpt-4.1-nano",
    "messages": [
      {"role": "user", "content": "Summarize the key points from this input."}
    ]
  }'