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This week in AI

What changed and what it changes for you — triaged, not dumped.

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ImportantPricingSep 14

GLM-5.3-Flash now bills at $0.15/$0.50 after its 50% launch discount ended

GLM-5.3-Flash now bills at $0.15 input and $0.50 output per 1M tokens. The $0.075/$0.25 launch rate was a 50 percent promotion that ended on 9 September 2026. Full-size GLM-5.3 stays at $1.40/$4.40, and our verdict stays conditional.

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What changed our minds

Recommendation flips from this week — with the reason on record.

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DeepSeek V4 Pro (basis change, rating held)

recommendedprevious pick
recommendednew pick

The rating did not move, so this is not counted in the week's verdict changes. The basis did: DeepSeek's rate card scopes the 2x peak billing window to Monday through Friday, 35 hours a week rather than the 49 our entry implied with "seven daily peak hours". Announced September 9 by deepseek-v4-peak-billing-weekdays-only.

Full reasoning

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