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Epoch AI adds Grok 4 with an ECI of 146

1 report1 sourceupdated 2 hours ago

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xAI released the closed-weight model Grok 4 on July 9, 2025. An October 3, 2026 report says Epoch AI has added it with an ECI of 146: 3rd of 148 models at release, now 71st of 253 tracked models. The report also lists 3.0e12 training parameters, 5.0e26 FLOP of training compute, input at $3 per million tokens and output at $15 per million tokens.

Written by AI from the coverage · updated 2 hours ago

LatestOct 3 23:14

Epoch AI has added Grok 4 with an ECI of 146, now 71st of 253 tracked models.

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Oct 3

23:14
AI HOT · Models
Epoch AI 收录 Grok 4：xAI 闭源模型 ECI 得分 146，发布时排名第 3
Epoch AI 已将 xAI 于 2025 年 7 月 9 日发布的闭源模型 Grok 4 收录，其 ECI 得分为 146，在 253 个追踪模型中排第 71 位，发布时在 148 个模型中排第 3。Grok 4 训练参数量 3.0e12、训练算力 5.0e26 FLOP，定价为输入 $3 / 1M tokens、输出 $15 / 1M tokens。

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