Cachemeter

Prices checked on 1 Nov 2026 Open in simulator

Prompt caching cost for every model

On the 40-turn coding agent, caching saves from 73% on Claude Fable 5 to 88% on Gemini 4 Argon, a best case.

32 models from Anthropic, OpenAI and Google. USD per million tokens, standard tier. Prices checked on 1 November 2026.

All models

Select a column heading to sort. Each model runs the coding agent on its default cache setting: 40 turns, 20K tokens of starting context, 3K in and 600 out per turn, 1.5 minutes apart, three long breaks of 8 minutes.

Claude Fable 5.1Anthropic$10.00$0.25$50.00$8.02$30.4679%
Claude Fable 5Anthropic$10.00$1.00$50.00$10.46$28.0273%
Claude Opus 5.5Anthropic$4.00$0.20$20.00$3.53$11.8677%
Claude Opus 5Anthropic$5.00$0.50$25.00$5.23$14.0173%
Claude Opus 4.8Anthropic$5.00$0.50$25.00$5.23$14.0173%
Claude Opus 4.7Anthropic$5.00$0.50$25.00$5.23$14.0173%
Claude Opus 4.6Anthropic$5.00$0.50$25.00$5.23$14.0173%
Claude Sonnet 5.5Anthropic$2.00$0.10$10.00$1.77$5.9377%
Claude Sonnet 5Anthropic$2.00$0.20$10.00$2.09$5.6073%
Claude Sonnet 4.6Anthropic$3.00$0.30$15.00$3.14$8.4173%
Claude Haiku 5.5Anthropic$0.10$0.01$0.50$0.37$0.9973%
Claude Haiku 4.5Anthropic$1.00$0.10$5.00$1.05$2.8073%
GPT-6 AstraOpenAI$10.00$1.00$50.00$6.81$31.6782%
GPT-6.1 SolOpenAI$2.00$0.10$10.00$1.00$6.6987%
GPT-6.1 TerraOpenAI$1.00$0.05$5.00$0.50$3.3587%
GPT-6 SolOpenAI$2.00$0.20$10.00$1.36$6.3382%
GPT-6 LunaOpenAI$0.10$0.01$0.50$0.068$0.3282%
GPT-5.6 SolOpenAI$4.00$0.40$20.00$2.72$12.6782%
GPT-5.6 TerraOpenAI$2.00$0.20$12.00$1.41$6.3382%
GPT-5.6 LunaOpenAI$0.20$0.02$1.20$0.14$0.6382%
GPT-5.5OpenAI$5.00$0.50$30.00$3.50$15.8682%
GPT-5.4OpenAI$2.50$0.25$15.00$1.66$8.0283%
GPT-5.4 miniOpenAI$0.75$0.075$4.50$0.71$2.1975%
Gemini 4 ArgonGoogle$2.00$0.10$10.00$0.92 best case*$6.7788%
Gemini 3.8 FlashGoogle$0.75$0.075$3.75$0.48 best case*$2.4183%
Gemini 3.6 FlashGoogle$0.75$0.075$3.75$0.48 best case*$2.4183%
Gemini 3.5 Flash-LiteGoogle$0.30$0.03$2.50$0.22 best case*$0.9682%
Gemini 3.1 Pro PreviewGoogle$2.00$0.20$12.00$1.33 best case*$6.4283%
Gemini 3.1 Flash-LiteGoogle$0.25$0.025$1.50$0.17 best case*$0.8083%
Gemini 2.5 ProGoogle$1.25$0.125$10.00$0.89 best case*$4.0182%
Gemini 2.5 FlashGoogle$0.30$0.03$2.50$0.22 best case*$0.9682%
Gemini 2.5 Flash-LiteGoogle$0.10$0.01$0.40$0.062 best case*$0.3284%

* Gemini implicit caching, best case: Google publishes no lifetime and does not guarantee hits. Tokens are not equal across providers, and a cheaper model may need more turns, so treat this as a starting point.