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GPT-5.4 mini

GPT-5.4 mini

Vision OpenAI

Our strongest mini model yet for coding, computer use, and subagents. Brings the strengths of GPT-5.4 to a faster, more efficient model designed for high-volume workloads.

Try on Simtheory
Qwen 3.6 Plus Frontier Claude 4.5 Sonnet Frontier Claude 4.5 Sonnet (thinking) Frontier Claude 4.6 Opus Frontier Claude 4.6 Opus Max Frontier Claude 4.6 Sonnet Frontier Claude 4.6 Sonnet Max Frontier Claude 4.7 Opus Frontier Claude 4.7 Opus Max Frontier Claude Fable 5 Frontier

Specifications

Context window 400,000 tokens
Max output 128,000 tokens
Knowledge cutoff August 2025
Multipart messages Yes
Vision capabilities Yes

Default Parameters

Temperature 0.3
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0

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