GPT 5.4 Mini 2026 03 17 API

OpenAI's GPT 5.4 Mini 2026 03 17, 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-5.4-mini-2026-03-17 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-5.4-mini-2026-03-17
Maker: OpenAI
Context window: 400K tokens
Input price: $0.749 per million tokens
Output price: $4.495 per million tokens
Providers: 1 independent provider
Regions: us

Providers

Architect: us, $0.749 input and $4.495 output per million tokens, $0.075 cache read per million tokens, 400K tokens of context

Scores

HLE: 5.9, #192 of 273
GPQA: 60.6, #174 of 250
AA-LCR: 37.0, #188 of 237
Terminal-Bench Hard: 18.2, #97 of 166
τ²-Bench: 23.4, #146 of 169
IFBench: 38.8, #128 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-5.4-mini-2026-03-17",
    "messages": [{"role":"user","content":"Say hello."}]
  }'

Questions

What is GPT 5.4 Mini 2026 03 17?: GPT 5.4 Mini 2026 03 17 is a model from OpenAI.
How much does GPT 5.4 Mini 2026 03 17 cost?: Offers now ask $0.749 per million input tokens and $4.495 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 5.4 Mini 2026 03 17?: The largest offer takes 400,000 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
What can GPT 5.4 Mini 2026 03 17 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 5.4 Mini 2026 03 17 support?: Text · Files · Images → Text.
Which providers serve GPT 5.4 Mini 2026 03 17?: 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 5.4 Mini 2026 03 17?: Send "gpt-5.4-mini-2026-03-17" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
When was GPT 5.4 Mini 2026 03 17 listed?: The exchange first listed it on 10/10/2026. This is not its release date.