Claude Fable 5 API Cost Calculator

Anthropic's Claude Fable 5: $10/M input · $50/M output · $1/M cached input. Price your own workload below.

Presets:

What Claude Fable 5 costs in practice

WorkloadInputOutputCost
Short chat message500250$0.018
10-page document + summary7,000500$0.095
Agent / coding session50,00010,000$1.00
1M tokens in + 1M out1,000,0001,000,000$60.00

Claude Fable 5 vs nearest rivals

Closest-priced alternatives on a mixed 10K-input / 2K-output request:

ModelInput $/MTokOutput $/MTokMixed request
Claude Fable 5$10$50$0.200
GPT-4o$2.5$10$0.045
GPT-5.4$2.5$15$0.055
GPT-5.6 Sol$5$30$0.110

Frequently asked questions

How much does the Claude Fable 5 API cost?

Claude Fable 5 costs $10 per million input tokens and $50 per million output tokens, with cached input at $1 per million (90% off).

How much does a typical chat message cost with Claude Fable 5?

A short chat message (about 500 input and 250 output tokens) costs roughly $0.018 with Claude Fable 5. At 1,000 such requests a day, that is about $525.00 per month.

Is Claude Fable 5 cheap compared to similar models?

Claude Fable 5 has the #26 cheapest input rate of the 26 models we track. On a mixed workload (10K input / 2K output), it costs $0.200 per request, versus $0.045 for GPT-4o.

Related

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Last updated 2026-08-03. Prices verified againstAnthropic's official pricing page; see themethodology.