OpenAI: GPT-5.4 Mini

openai/gpt-5-4-mini

GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads.

Modalities
In / out per 1M$0.75 / $4.50
Context391K
ReleasedMar 17, 2026

Providers

5 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
OpenAI$0.38$2.25$0.040.73s113 tps100%
OpenAI$0.75$4.50$0.071.02s112 tps100%
Azureeastus2$0.82$4.95$0.08——100%
OpenAI$1.50$9.00$0.151.11s86 tps100%
Azure$0.75$4.50$0.073.41s47 tps99.89%

Market-wide measurements, refreshed every 15 minutes. They describe who serves GPT-5.4 Mini in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what GPT-5.4 Mini costs pay-as-you-go elsewhere, not what you pay here.

Input
$0.75
per 1M tokens
Output
$4.50
per 1M tokens
Cache read
$0.07
per 1M cached tokens
Included in every pass
GPT-5.4 Mini is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s2.0s4.0s6.0s8.0s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
Azure OpenAI OpenAI OpenAI
0 tok/s200 tok/s400 tok/s600 tok/s800 tok/s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
Azure OpenAI OpenAI OpenAI

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 99.89%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.88%
100% 98% 97% 95%
Oct 13, 2:50 PMNow

Apps

Tools that most often run GPT-5.4 Mini, by tokens this week.

Activity

528.9B tokens processed market-wide in the last month.

010.0B20.0B30.0B40.0B
Sep 14Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14
Tokens

FAQ

Which model id do I use for GPT-5.4 Mini?
openai/gpt-5.4-mini. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does GPT-5.4 Mini hold?
400,000 tokens per request, of which up to 128,000 can be the response.
What can it accept and return?
Input: file, image, text. Output: text.
What does GPT-5.4 Mini cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.75 per 1M input tokens and $4.50 per 1M output tokens.
How current is its knowledge?
Training data runs to Aug 2025. Anything later has to come from your prompt or a tool call.
Who built GPT-5.4 Mini?
OpenAI, in the GPT family.

Explore

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