claude-fable-5-1 API pricing

Anthropic charges $10 per million input tokens and $50 per million output tokens for claude-fable-5-1, and $0.25 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.035, or $0.0175 through the batch API.

Prices updated October 28, 2026
Input / 1M tokens
$10
Output / 1M tokens
$50
Cached input / 1M tokens
$0.25
Typical request
$0.035
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claude-fable-5-1 price per million tokens

Token typeStandardBatch API
Input$10$5
Cached input$0.25$0.125
Output$50$25

claude-fable-5-1 supports a 1M-token context window, up to 128K output tokens, image input, tool calling and reasoning.

What claude-fable-5-1 costs per request

Request1 request1,000 requests1M requests
Short chat message (300 in, 200 out)$0.013$13.00$13,000.00
Typical request (1K in, 500 out)$0.035$35.00$35,000.00
Long document summary (20K in, 1K out)$0.25$250.00$250,000.00
Coding agent step (50K in, 2K out)$0.60$600.00$600,000.00

At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words. Anthropic counts tokens with its own tokenizer, so the same text can be a different number of tokens.

Models with a similar price

ModelProviderInput / 1MCached input / 1MOutput / 1MTypical request
claude-opus-4-5Anthropic$5$0.5$25$0.0175
claude-opus-4-6Anthropic$5$0.5$25$0.0175
claude-opus-4-7Anthropic$5$0.5$25$0.0175
gpt-5.5OpenAI$5$0.5$30$0.02
gpt-6-astraOpenAI$10$1$50$0.035
claude-fable-5Anthropic$10$1$50$0.035
claude-mythos-5Anthropic$10$1$50$0.035
claude-mythos-5-1Anthropic$10$0.25$50$0.035

Other Anthropic models

Source: Anthropic pricing.