intelligence-radar/frontier/readings-2026-W41.md
tegwick c4f71a1231 Record reviewed readings of the week-40, week-41, and week-42 briefs.
Each publication keeps only claims a ledger capture supports. Launch stories, index scores, and Frontier, Efficient, and Budget labels stay excluded.

Assistant: grok
Assistant-Session: 01a1925d-3496-7011-a33e-6bfb99f4f4d3
2026-10-31 17:21:05 +01:00

1.5 KiB

Price readings — 2026-W41

Read on 31 October 2026 from captures already in the ledger. These lines do not assign Frontier, Efficient, or Budget. They do not replace ledger-2026-09.md or readings-2026-W40.md.

On 6 October, capture 50eb50a66a6c4770b065c379ccd56b96d1f68a7b98e6ed28874780d7cc506421 of https://claude.com/pricing lists Sonnet 5.5 prompt-cache read at $0.20 per million tokens and does not list Haiku 5.5.

On 7 October, capture 16d63ca029d7b392c26fb6f73c5c6dbfe26f65edbceb5c5503caf3f72e0d58d9 lists the following USD per million tokens. The 11 October capture 6f7047207dcfa2c384603d0e71ec6d666789d20ee6d944288e4e74dbb44dbb7e still shows the Haiku 5.5 rows and the Sonnet 5.5 cache-read rate.

Row Input Output Cache read Cache write
Haiku 5.5, prompts ≤ 100K tokens $0.10 $0.50 $0.01 $0.125
Haiku 5.5, prompts > 100K tokens $0.50 $2.50 $0.05 $0.625
Haiku 4.5, legacy table $1 $5 $0.10 $1.25
Sonnet 5.5 $2 $10 $0.10 $2.50

The page does not state a percentage run-cost reduction. The short-prompt Haiku 5.5 input and output rates are one tenth of the Haiku 4.5 rates on the same page.

OpenRouter lists anthropic/claude-haiku-5.5 from 7 October at prompt 0.0000001 and completion 0.0000005 per token, context 1000000, with a higher override from 100000 prompt tokens. That is a catalog field, not the Anthropic price card. The card is the pricing-page capture above.