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Anthropic

Claude Fable 5

Claude Fable 5 is Anthropic's most capable widely released model for demanding reasoning, long-horizon agentic work, code, and multimodal tasks. It features a 1M token context window, 128K max output tokens, always-on adaptive thinking, function calling, structured outputs, and vision support.

claude-fable-5
Catalog preview. Paid requests for this model are not enabled yet.

Pricing

~91%

USD. No uRouter markup. Live prices can change.

Input
$0.875415 / 1,000,000 tokens
Output
$4.377075 / 1,000,000 tokens
Cache read
$0.087542 / 1,000,000 tokens
Cache write
$1.094269 / 1,000,000 tokens
How pricing works

Model details

Input
text, image
Output
text
Context window
1,000,000 tokens
Maximum output
128,000 tokens
Availability
$9.2KUncapped capacity
Updated
11/8/2026, 2:16:16 AM UTC

Capacity is reserved when your request is accepted.

Price history

Observed best prices · Last 24 hours · UTC

$0.875415/ 1,000,000 tokens
$0.864615$0.911414$0.958213Nov 7, 11:53 PMNov 8, 02:16 AM

Capabilities

chatstreamingtoolsvisionreasoningjson modeweb search
Supported parameters
include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_pverbosity

Listed capabilities describe the model. uRouter execution support is verified separately.