Claudemoderated

Anthropic: Claude Fable 5.2

anthropic/claude-fable-5.2

canonical: anthropic/claude-fable-5.2-20261109

Descriptionfrom OpenRouter

Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision. In prerelease testing it completed otherwise-infeasible...

Context length

1,000,000 tok

Max completion

128,000 tok

Knowledge cutoff

—

Expires

—

Added to OpenRouter

11/9/2026

Cache last refreshed

11/12/2026

Primary modality

text+image+file->text

Source

OpenRouter

Input modalities

textimagefile

Output modalities

text

Pricing

Field	Per token (USD)	Per million
prompt	0.000008	$8.00
completion	0.00004	$40.0
web_search	0.01	$10000
input_cache_read	0.0000002	$0.200
input_cache_write	0.00001	$10.0
input_cache_write_1h	0.000016	$16.0

Supported parameters(11)

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity

OpenRouter page

Videos

36:22

Fable 5.2 robbing me blind, plus: Nex AGI's N2.6 vs GLM 5.3 Flash

Nov 11, 2026 · YouTube

Rounds

2 answersin this database. A round opens every model's answer to the same prompt.

Nov 9, 2026CodingEscalator Reversal Disasterin a video round answer
Nov 9, 2026CodingEscalator Reversal Disasterin a video round answer