GPT 4o Mini API

OpenAI's GPT 4o Mini, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.

Providers compete for each request. The exchange ranks the offers that meet your rules by estimated charge. It fixes your maximum charge before the first token, and you pay for the tokens that the model uses.
The OpenAI and Anthropic APIs. Use the OpenAI or Anthropic SDK that you have. Set the base URL and your key, and send gpt-4o-mini as the model.
Your data rules. Send x-liquid-retention: none and only offers whose provider does not keep your content compete for the request.

Facts

Model name: gpt-4o-mini
Maker: OpenAI
Context window: 128K tokens
Input price: $0.150 per million tokens
Output price: $0.600 per million tokens
Providers: 1 independent provider
Regions: us

Providers

Architect: us, $0.150 input and $0.600 output per million tokens, $0.075 cache read per million tokens, 128K tokens of context

Scores

HLE: 4.2, #222 of 273
GPQA: 42.6, #225 of 250
LiveCodeBench: 23.4, #105 of 130
AIME 2025: 14.7, #88 of 100
MMLU-Pro: 64.8, #106 of 133
IFBench: 31.0, #162 of 178

Scores: Artificial Analysis (https://artificialanalysis.ai/)

Request

curl https://router.inference.ai.exchange/v1/chat/completions \
  -H "Authorization: Bearer $LIQUID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role":"user","content":"Say hello."}]
  }'

Questions

What is GPT 4o Mini?: Served by intent-router: each job goes to the cheapest healthy upstream for this model.
How much does GPT 4o Mini cost?: Offers now ask $0.150 per million input tokens and $0.600 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
What is the context length of GPT 4o Mini?: The largest offer takes 128,000 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
What can GPT 4o Mini do?: Its providers list Documents, Vision, Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
What inputs and outputs does GPT 4o Mini support?: Text · Files · Images → Text.
Which providers serve GPT 4o Mini?: 1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
How do I call GPT 4o Mini?: Send "gpt-4o-mini" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
When was GPT 4o Mini listed?: The exchange first listed it on 10/8/2026. This is not its release date.