Availability

Publicly available

Provider

Anthropic

Country

USA

Family

Claude

Status

Current

Weights

Closed

Release date

2026-09-01T00:00:00.000Z

Modalities

text (both)

Input per million tokens

10 USD

Output per million tokens

50 USD

Price effective from

2026-09-06T00:00:00.000Z

Knowledge cutoff

2026-06-01T00:00:00.000Z

Aliases

anthropic.claude-fable-5-1, claude-fable-5-1

Capabilities

• reasoning · primary
• tool_use
• structured_output

Traits

• context_window1,000,000 tokens
• max_output_tokens128,000 tokens