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OpenAI shipped GPT-5.5 and the real story is not the benchmarks. It is the super app.
OpenAI released GPT-5.5 on April 23, 2026. The benchmark numbers are good. The token efficiency claim is interesting. But the thing that will actually matter to anyone running a business is that this release is the clearest signal yet that OpenAI is collapsing ChatGPT, Codex, and its AI browser into one product.