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Grok 4.20 launch and ECI benchmark ranking
1 report1 sourceupdated 1 hour ago
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xAI released the closed-weight Grok 4.20 on February 17, 2026, with 5.0e11 parameters (500 billion). Per an October 3 report, Epoch AI has added the model with an ECI score of 152; it ranked seventh among 186 models at launch and now ranks 42nd among 253. It scores 65% on ARC-AGI-2, 89% on GPQA Diamond and 57% on Terminal-Bench 2.0. The report does not disclose pricing or a knowledge cutoff.
Written by AI from the coverage · updated 1 hour ago
LatestOct 3 23:14
Epoch AI adds Grok 4.20: ECI 152, now 42nd of 253 models.Coverage
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Oct 3
- AI HOT · ModelsxAI 发布 Grok 4.20，Epoch AI 收录 ECI 得分 152 排名第 42
xAI 于 2026 年 2 月 17 日发布闭源模型 Grok 4.20，Epoch AI 给出的 ECI 得分为 152，在 253 个收录模型中排第 42 位，发布时在 186 个模型中排第 7。该模型参数量为 5.0e11，在 ARC-AGI-2 上得分 65%、GPQA Diamond 89%、Terminal-Bench 2.0 57%，定价与知识截止时间未公布。
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