GPT-5.4 vs GPT-5.5
For product management work, compared on the PM Index.
- GPT-5.5 leads on the PM Index (54.8 vs 51.3).
- GPT-5.4 is cheaper ($5.63 vs $11.25 per 1M tokens).
- GPT-5.4 is faster (141 vs 68 tok/s).
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For product management work, compared on the PM Index.