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GPT-5.4 Nano

openai/gpt-5.4-nano

Compare with GPT-5 Nano, GPT-5.4 Nano (batch), GPT-5.4

CompareGPT-5.4 Nano

	State
Azureazure	Healthy	100%	99.95%	1.50s	6.17s	30 tps	400K	$0.200 / $1.25
OpenAIopenai	Down	89.03%	89.54%	834ms	5.35s	70 tps	400K	$0.200 / $1.25
OpenAIopenai/flex	Down	89.03%	89.54%	—	—	—	400K	$0.100 / $0.625
Azureazure/us	No data	—	99.83%	877ms	3.84s	24 tps	400K	$0.220 / $1.38

Azure100%
Healthy24h 99.95%
p50
1.50s
p99
6.17s
Throughput
30 tps
Context
400K
$/Mtok
$0.200 / $1.25
azure
OpenAI89.03%
Down24h 89.54%
p50
834ms
p99
5.35s
Throughput
70 tps
Context
400K
$/Mtok
$0.200 / $1.25
openai
OpenAI89.03%
Down24h 89.54%
p50
—
p99
—
Throughput
—
Context
400K
$/Mtok
$0.100 / $0.625
openai/flex
Azure—
No data24h 99.83%
p50
877ms
p99
3.84s
Throughput
24 tps
Context
400K
$/Mtok
$0.220 / $1.38
azure/us

Measured 2m ago. Latency and throughput are OpenRouter's rolling 30-minute windows.

History

1 endpoint reporting no data is omitted from the charts.

Availability

Axis starts at 90% so small differences stay visible; it expands to 0 when an endpoint falls below.

Time to first token

Logarithmic axis — the fleet spans two orders of magnitude. P50 is OpenRouter's rolling 30-minute window, averaged over the hour.

Throughput

Median tokens per second.