OpenAI · Status at source date: Newsletter archive
GPT-5.5 lands in ChatGPT and Codex products
Following the API and Plus/Pro launch covered in Week 17, OpenAI has rolled out GPT-5.5 inside ChatGPT and Codex for Plus, Pro, Business, and Enterprise users. GPT-5.5 Pro is also live for Pro, Business and Enterprise tiers.
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What changed
The rollout is a real step forward in intelligence, with the model performing faster than GPT-5.4 on complex coding, research, and dense-document workflows while maintaining comparable latency.
Why it matters for advertisers
For you, this means the model is now in the consumer and prosumer product surface, not just the API. Worth re-running internal benchmark prompts inside ChatGPT and Codex if your team has been deferring the GPT-5.5 evaluation until it appeared in the products they actually use day-to-day.
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GPT-5.5 lands in ChatGPT and Codex products
Following the API and Plus/Pro launch covered in Week 17, OpenAI has rolled out GPT-5.5 inside ChatGPT and Codex for Plus, Pro, Business, and Enterprise users. GPT-5.5 Pro is also live for Pro, Business and Enterprise tiers. The rollout is a real step forward in intelligence, with the model performing faster than GPT-5.4 on complex coding, research, and dense-document workflows while maintaining comparable latency.
For you, this means the model is now in the consumer and prosumer product surface, not just the API. Worth re-running internal benchmark prompts inside ChatGPT and Codex if your team has been deferring the GPT-5.5 evaluation until it appeared in the products they actually use day-to-day.
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