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OpenAI: GPT-4o mini

gpt-4o-mini

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GPT-4o mini costs $0.195 per million input tokens and $0.780 per million output tokens, supports 128K context, and is available through the OpenAI-compatible API.

OpenAI's most cost-efficient small model. Cheaper and smarter than GPT-3.5 (the original ChatGPT), but less performant than gpt-4o.

Modalities

Text + Image → Text

Input / output price

$0.195 / $0.780 per 1M

Context

128K · max output 16K

Capabilities

Vision

Pricing

Billed per token actually used and deducted from your credits.

ItemUSD per 1M tokens
Input$0.195
Output$0.780
Cached input$0.0975

Calculator

Drag the sliders to estimate what this model will cost.

Per request
$0.00121
Per day
$0.6045
Per month (30 days)
$18.14

GPT-4o mini: input $0.195/M · output $0.78/M · cached input $0.0975/M

Request with these settings
curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gpt-4o-mini", "max_tokens": 800,
       "messages": [{"role": "user", "content": "…"}]}'

Code samples

OpenAI-compatible. Set the base URL to https://api.geniusrelaygpt.com/v1 and the model to gpt-4o-mini.

curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use it in a client: Cursor · Cline · SillyTavern · Codex

Parameters

Common OpenAI parameters can be passed as-is.

temperaturetop_pmax_tokensstreamstoppresence_penaltyfrequency_penaltyseed

FAQ

How is GPT-4o mini billed?
Input is $0.195 and output is $0.780 per million tokens; cached input is $0.0975. The charge for every request is listed in Usage Logs in the console.
How long is the context window?
128K tokens. In a long conversation every turn is billed for the full input, so keep the history under control.
Does it support streaming?
Yes. Add "stream": true to the request to receive server-sent events in the OpenAI format.
GPT-4o mini API pricing · GeniusRelay