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Ranks providers by their recent typical output speed in tokens per second. Providers without enough recent data remain visible after ranked rows.
Azure currently ranks first at 8.0 tok/s via azure.
| Rank | Provider / route | Output speed | Speed measurements | Endpoint details |
|---|---|---|---|---|
| #1 | Provider / route Azure azure | Output speed8.0 tok/s | Speed measurements
| Endpoint details
|
| #2 | Provider / route OpenAI openai | Output speed3.0 tok/s | Speed measurements
| Endpoint details
|
| — | Provider / route OpenAI openai/flex | Output speedInsufficient recent data | Speed measurements
| Endpoint details
|
Endpoint data fetched .
GPT-5.4 Pro endpoint guide
2 of 3 GPT-5.4 Pro endpoints currently have the published data required for this ranking. Azure leads at 8.0 tok/s via azure. The table keeps unranked routes visible so missing measurements do not look like missing provider availability.
The output-speed ranking compares recent median generated tokens per second. It favors routes that complete long generations quickly, while first-token latency remains a separate measure of how responsive the endpoint feels at the beginning.
OpenAI currently ranks second at 3.0 tok/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.
GPT-5.4 Pro has 3 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.
