gpt-4o-free · OpenAI
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".
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".
GPT 4o (free) has a 1,047,576 token context window.
GPT 4o (free) accepts text and image input.
GPT 4o (free) supports tool calling, function calling, structured outputs and long context. Per-protocol parameter support is listed in the capability table on this page.
GPT 4o (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-4o-free — no other code changes needed.
GPT 4o (free) is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
Paid version: GPT 4o
GPT-5.6 Sol (limited-time 50% off) is OpenAI’s frontier reasoning model for complex…
GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly…
GPT‑5.6 Sol sets a new standard for both intelligence and efficiency, achieving…
GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly…
GPT-4o Transcribe Diarize is an automatic speech recognition (ASR) model with built-in…
The gpt-audio model is OpenAI's first officially released (generally available) audio…
Use GPT 4o (free) via the AIHubMix unified API — one interface for every major LLM.