ATOM AIPI Weekly, Week 12 (March 30, 2026)

Week 12 numbers are out.

2,614 SKUs across 1,234 models and 47 vendors. All 14 AIPI indexes came in flat this week, 0.0% WoW across every modality and channel category.

Numbers worth knowing:

Text input benchmark (AIPI TXT GLB): $0.001190 per 1K tokens

Text output benchmark: $0.005540 per 1K tokens

Output premium over input: 3.85x

Open source vs proprietary median: OSS is 70.7% cheaper

Caching savings where available: 69.7%

Models offering cached pricing: 20.4%

Context cost curve (128K+ vs 32K): 3.0x

Three straight weeks of flat pricing. The competition right now is on model breadth, not price.

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