GPT 4.1 Mini (free)

gpt-4.1-mini-free · OpenAI

This model has been retired.
Requests return 404 model_retired. All model retirements

This free model API comes from the OpenAI model deployed on Azure. To prevent abuse, the external content filter provided by Azure has been enforced, which will result in additional delays. If you want to experience the full version of the model API without filters, please use the paid version and request the model name ID without "-free".

Specifications

Context1.05M tokens
Modalitiestext, image, PDF
CapabilitiesStreaming, Tool calling, Web search, Code interpreter, File search, Structured outputs

Frequently asked questions

What is GPT 4.1 Mini (free)?

This free model API comes from the OpenAI model deployed on Azure. To prevent abuse, the external content filter provided by Azure has been enforced, which will result in additional delays. If you want to experience the full version of the model API without filters, please use the paid version and request the model name ID without "-free".

What is the context length of GPT 4.1 Mini (free)?

GPT 4.1 Mini (free) has a 1,047,576 token context window.

What modalities does GPT 4.1 Mini (free) support?

GPT 4.1 Mini (free) accepts text, image and PDF input.

What capabilities does GPT 4.1 Mini (free) support?

GPT 4.1 Mini (free) supports tool calling, function calling, structured outputs and long context. Per-protocol parameter support is listed in the capability table on this page.

How do I call GPT 4.1 Mini (free) via API?

GPT 4.1 Mini (free) is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gpt-4.1-mini-free — no other code changes needed.

Who created GPT 4.1 Mini (free)?

GPT 4.1 Mini (free) is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

When was GPT 4.1 Mini (free) released?

GPT 4.1 Mini (free) was released on April 14, 2025 by OpenAI.

Paid version: GPT 4.1 Mini

More models from OpenAI

See all OpenAI models →

GPT 6.1 Sol

by OpenAI

GPT-6.1 Sol is OpenAI's latest model in the GPT-6 series, specifically designed for…

$2/1M in · $10/1M out
1,050,000 tokens context

GPT 6 Luna

by OpenAI

GPT-6 Luna is OpenAI's latest and most efficient model, designed for focused…

$0.1/1M in · $0.5/1M out
1,050,000 tokens context

GPT 6 Sol

by OpenAI

GPT-6 Sol is OpenAI's latest model in the GPT-6 series, specifically designed for complex…

$2/1M in · $10/1M out
1,050,000 tokens context

GPT 6 Astra

by OpenAI

GPT-6 Astra is OpenAI's newest and most intelligent model, with industry-leading…

$10/1M in · $50/1M out
1,050,000 tokens context

GPT Live Transcribe

by OpenAI

OpenAI's latest realtime speech-to-text model, built for low-latency use — it streams…

GPT Realtime 2.1

by OpenAI

GPT-Realtime-2.1 is a reasoning speech-to-speech model for the Realtime API, with tool…

$4/1M in · $24/1M out
128,000 tokens context

Browse models available on AIHubMix — one interface for every major LLM.