OpenAI
GPT-5.4 mini
GPT-5.4 mini is an AI model released by OpenAI on Tuesday, Mar 17 2026, 12 days after GPT-5.4-Pro. It has a 400k token context window. Benchmark results (shown below) cover BullshitBench v2.
Benchmarks
Nonsense detection
BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.
32%