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Fastest GPT-5 Mini Inference Providers

Ranks providers by estimated time to return 500 tokens, combining the wait for the first token with output speed.

Azure currently ranks first at 10.88 s via azure.

Provider options:
4
Ranked:
3
Metric:
Estimated response time

Fastest response endpoint ranking

Fastest GPT-5 Mini Inference Providers
RankProvider / routeEstimated response timeSpeed measurementsEndpoint details
#1Provider / route
Azureazure
Estimated response time10.88 sSpeed measurements
500-token response
10.88 s
Response starts
4.63 s
Output speed
80.0 tok/s
Endpoint details
Input price
$0.25 / 1M tokens
Output price
$2 / 1M tokens
Uptime (30 min)
98.00%
Context
400K
#2Provider / route
OpenAIopenai
Estimated response time11.62 sSpeed measurements
500-token response
11.62 s
Response starts
3.81 s
Output speed
64.0 tok/s
Endpoint details
Input price
$0.25 / 1M tokens
Output price
$2 / 1M tokens
Uptime (30 min)
96.92%
Context
400K
#3Provider / route
Azureazure/swedencentral
Estimated response time13.19 sSpeed measurements
500-token response
13.19 s
Response starts
3.39 s
Output speed
51.0 tok/s
Endpoint details
Input price
$0.275 / 1M tokens
Output price
$2.2 / 1M tokens
Uptime (30 min)
Insufficient recent data
Context
400K
Provider / route
OpenAIopenai/flex
Estimated response timeInsufficient recent dataSpeed measurements
500-token response
Insufficient recent data
Response starts
Insufficient recent data
Output speed
Insufficient recent data
Endpoint details
Input price
$0.125 / 1M tokens
Output price
$1 / 1M tokens
Uptime (30 min)
96.92%
Context
400K

Endpoint data fetched .

GPT-5 Mini endpoint guide

How to interpret the Fastest GPT-5 Mini Inference Providers

3 of 4 GPT-5 Mini endpoints currently have the published data required for this ranking. Azure leads at 10.88 s via azure. The table keeps unranked routes visible so missing measurements do not look like missing provider availability.

How complete response time is ranked

The fastest ranking estimates a 500-token answer by adding the recent median first-token wait to 500 divided by median output throughput. It represents an example complete response, not a guarantee for every prompt or request size.

Compare Azure with the next option

OpenAI currently ranks second at 11.62 s. Compare that gap with input and output price, response-start time, output speed, 30-minute uptime, context length, and the exact route before deciding whether first place is meaningful for your workload.

Use the route, not only the provider name

GPT-5 Mini has 4 published provider options, and performance data is matched to each exact OpenRouter routing tag. Different quantization, context, regional deployment, or provider configuration can change price and behavior even when the underlying model name is identical.