o4-mini
OpenAI/Proprietary/2 providers
o4-mini is OpenAI's most recent small reasoning model, providing high intelligence at the same cost and latency targets of o1-mini. o3-mini also supports key developer features, like Structured Outputs, function calling, Batch API, and more. Like other models in the o-series, it is designed to excel at science, math, and coding tasks.MoreLess
Which id to call
o4-mini@euSame routing, restricted to EU-hosted providers. Use this id when data residency is a requirement: requests never leave the EU.
From /1M input
$0.55
OpenAI Inc.
Context
200K
100K output
Endpoints
11
7 regions
Price spread
2.2x
11 endpoints
Capabilities 4/8
11 endpoints / 7 regions
Providers serving o4-mini
Provider prices, per 1M tokens. Pay as you go adds 5%, or 0% on your own keys.
| Rank | Privacy | ||||||
|---|---|---|---|---|---|---|---|
| 1 | OpenAI Inc. | Global | 200K | $0.55 | $2.20 | $0.14 | no-train |
| 2 | OpenAI Inc. | Global | 200K | $1.10 | $4.40 | $0.28 | no-train |
| 3 | OpenAI Inc. | Global | 200K | $1.10 | $4.40 | $0.28 | no-train |
| 4 | OpenAI Inc. | Global | 200K | $1.10 | $4.40 | $0.28 | no-train |
| 5 | OpenAI Inc. | Global | 200K | $1.10 | $4.40 | $0.28 | no-train |
| 6 |  Microsoft Azure AI | eastus2 | 200K | $1.10 | $4.40 | $0.28 | zdr |
| 7 | Microsoft Azure AI | westus3 | 200K | $1.10 | $4.40 | $0.28 | zdr |
| 8 | Microsoft Azure AI | francecentral | 200K | $1.21 | $4.84 | $0.30 | zdr |
| 9 | Microsoft Azure AI | germanywestcentral | 200K | $1.21 | $4.84 | $0.30 | zdr |
| 10 | Microsoft Azure AI | swedencentral | 200K | $1.21 | $4.84 | $0.30 | zdr |
| 11 | Microsoft Azure AI | westeurope | 200K | $1.21 | $4.84 | $0.30 | zdr |
A column is blank where no qualifying sample exists, and every row links to that provider's endpoint page.
model=
Which id to call
One base url, https://router.requesty.ai/v1, and one key for every id here.
o4-mini@euSame routing, restricted to EU-hosted providers. Use this id when data residency is a requirement: requests never leave the EU.
OpenAI compatible
Call it in three lines
Change the base url, use your Requesty key, set the model to any id on the left. Existing OpenAI SDK code needs no other edit.
123456789101112131415from openai import OpenAI client = OpenAI( api_key="YOUR_REQUESTY_API_KEY", base_url="https://router.requesty.ai/v1", ) response = client.chat.completions.create( model="openai/o4-mini:flex", messages=[ {"role": "user", "content": "Explain quantum computing in one paragraph."}, ], ) print(response.choices[0].message.content)
Artificial Analysis
Benchmark scores
Graduate-level physics, chemistry & biology questions designed to resist Googling.
Artificial Analysis Intelligence Index: a composite of multiple evaluations measuring overall model capability.
Scores from artificialanalysis.ai. They measure the model, not the provider, so they are the same on every endpoint above.
6
More from OpenAI
Reference
o4-mini questions
Which providers serve o4-mini?
o4-mini is available from 2 providers through Requesty: OpenAI Inc., Microsoft Azure AI. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does o4-mini cost?
Pricing starts at $0.55 per million input tokens and $2.20 per million output tokens on OpenAI Inc., the cheapest endpoint. Prices vary by provider and region; the table above shows every endpoint. Those are the upstream provider rates: pay as you go adds 5% on top, or 0% if you bring your own provider keys.
Is o4-mini open weights?
No. o4-mini is a proprietary model from OpenAI, served through OpenAI's own API and licensed cloud platforms.
What is the context window of o4-mini?
o4-mini supports up to 200K tokens of context, with up to 100K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
How do I use o4-mini with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "openai/o4-mini:flex" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.
Route o4-mini through one endpoint
One key for 2 providers on this model and 600+ others. No markup on provider prices, automatic failover, caching built in.