OpenAI releases GPT-5.5 Pro
What happened
OpenAI released the closed-weight model GPT-5.5 Pro, with an ECI score of 162, according to an October 3, 2026 report. The report notes it ranked 1st among 209 tracked models at launch and now ranks 6th as tracking widened to 253 models. Pricing is $30 per million input tokens and $180 per million output tokens. It scores 95% on ARC-AGI-2, 78% on FrontierMath Tier 4 (v2) and 94% on GPQA Diamond.
Written by AI from the coverage · updated 2 hours ago
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- AI HOT · ModelsOpenAI 发布 GPT-5.5 Pro，ECI 得分 162
OpenAI 发布闭源模型 GPT-5.5 Pro，ECI 得分 162，在 253 个追踪模型中排名第 6，发布时曾在 209 个模型中排名第 1。该模型定价为输入 $30 / 1M tokens、输出 $180 / 1M tokens，在 ARC-AGI-2 上得分 95%、FrontierMath Tier 4 (v2) 得分 78%、GPQA Diamond 得分 94%。
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