The day the frontier got cheaper: every model launched on September 22, 2026

The densest model-release day of the year. Anthropic, OpenAI, xAI, Xiaomi and China Telecom all shipped within roughly a day of each other — and every announcement led with cost, not capability.

Last updated 2026-09-22. Model pricing is refreshed twice daily.

Overview

The densest model-release day of the year. Anthropic, OpenAI, xAI, Xiaomi and China Telecom all shipped within roughly a day of each other — and every announcement led with cost, not capability.

OpenAI GPT-6 Sol and Luna: API prices cut by half versus the GPT-5.6 tier
Anthropic Claude Opus 5.5: Fable 5.1-level quality with a 20% list price cut
xAI Grok 4.7: trained for agentic tasks that run for hours
Xiaomi MiMo-V2.6 and China Telecom Xing4.0: open-weight omnimodal and agentic options
What the new price bands do to a real monthly AI bill

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