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GPT-5.5 System Card

GPT-5.5 drops with new safety benchmarks and capability metrics. Here's what changed.

Reporting by OpenAI Blog 1 min brief
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The KeyNews take

Why it matters

OpenAI released GPT-5.5 with updated system card, detailing new safety evaluations, capability benchmarks, and model improvements. This is a direct competitor capability update that affects enterprise deployment decisions.

The key facts

4 to know

  1. GPT-5.5 system card published

  2. New safety evaluation framework included

  3. Model capability metrics updated

  4. Published April 23, 2026

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OpenAI Blogopenai.com

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