Trending storyDeveloping

xAI ships Grok 4.5 with ECI score of 154

1 report1 sourceupdated 2 hours ago

What happened

AI digest

xAI released the closed-weight model Grok 4.5 on July 8, 2026, and Epoch AI recorded an ECI score of 154, per an October 3 report. At launch it ranked 14th among 225 tracked models; with 253 models tracked now, it sits 36th. Input is priced at $2 per million tokens and output at $6 per million tokens.

Written by AI from the coverage · updated 2 hours ago

LatestOct 3 23:14

As of the October 3 report, Grok 4.5 ranks 36th among 253 tracked models with an ECI score of 154.

Coverage

Follow the reports to see the story from different sides.

Oct 3

23:14
AI HOT · Models
xAI 发布闭源模型 Grok 4.5，Epoch AI 评测 ECI 得分 154
xAI 于 2026 年 7 月 8 日发布闭源权重模型 Grok 4.5，Epoch AI 记录其 ECI 得分为 154。目前该模型在 253 个被追踪模型中排名第 36，发布时在 225 个模型中排名第 14。输入价格为 $2 / 1M tokens，输出价格为 $6 / 1M tokens。

Heat over time

Not enough continuous observations to draw a trend yet.