Model specification · OpenAI

GPT-5 Mini

openai/gpt-5-mini

GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....

SpecificationsReported values
Context window
400K
Maximum output
128K
Architecture
text+image+file->text
Tokenizer
GPT
Knowledge cutoff
2024-05-31
Moderated
Yes
Input modalities
text image file
Output modalities
text
Full pricingUSD where reported
PriceStandard
Input$0.250 / M
Output$2.00 / M
Benchmark indexesReported indexes
Intelligence
25.3
Coding
15.6
Agentic
19.4
Design Arena Elo
1146
Example workload costsStandard pricing only
WorkloadInput / outputCache shareEstimated cost
Quick check10K / 1K × 10%$0.00450
Long analysis100K / 4K × 150%$0.022
Workday20K / 2K × 1,00030%$7.65
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