GPT-5.4 mini vs GPT-5.5 Pro

Best cell per row highlighted. Null means undisclosed — never counted as zero.

OpenAI
GPT-5.4 miniGA
9.0
AI Panel
OpenAI
GPT-5.5 ProGA
7.7
AI Panel

Identity & lifecycle

ProviderOpenAIOpenAI
Family / tierGPT-5 · miniGPT-5 · Pro
StatusGAGA
Released2026-03-162026-04-23
Knowledge cutoff2025-082025-12

Architecture & context

Context window400K1.1M
Max output tokens128K128K
Input modalitiestext, imagetext, image
Reasoning modeoptionalalways
Open weightsNoNo

Pricing (per Mtok)

Input$0.75$30
Output$4.5$180
Cached input$0.075
Batch input$0.375$15
Free tierNoNo

Speed

Output speed (tok/s)180
Time to first token (s)0.5
Latency tierfastslow

Trust & deployment

Trains on inputsNoNo
LicenseProprietaryProprietary
CloudsAzure OpenAI, Azure AI FoundryAzure OpenAI, Azure AI Foundry
ComplianceSOC2, GDPR, CCPA, HIPAASOC2, GDPR, CCPA, HIPAA

AI Panel scoring

Unified score97.7
Decision Maker98
Domain Strategist97.5
Finance Lead106
Domain Practitioner97
Power User88
Skeptic8.57
Value score9.85

Benchmarks

GPQA Diamond94
SWE-bench Verified89

Scores link to their sources. Missing cells mean the vendor hasn't disclosed a result — honesty over padding.