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  1. Anthropic
  2. claude-sonnet-5-5

claude-sonnet-5-5

Claude Sonnet 5.5

Context Length

1M

Max Output

128K

Input and Output

Published

September 28, 2026

Knowledge Cutoff

June 2026

Model / Completion Ratio

1 / 5

Description

Claude Sonnet 5.5 offers the best combination of speed and intelligence, but it introduces some breaking changes in parameter passing.

Features

Reasoning
Tool calling
Structured output
File attachments

Available Groups

Different token groups have different prices. Unit: Million tokens (M)

Token GroupGroup RatioInput PriceOutput PriceCache ReadCache write (5m)Cache write (1h)
claude_kiro

Claude性价比 (来源-逆向kiro)

0.35x$0.7/M$3.5/M$0.035/M$0.875/M$1.4/M
claude_max

Claude性价比 (来源-max号 质量最好)

1x$2/M$10/M$0.1/M$2.5/M$4/M

Supported Endpoints

openaiPOST
anthropicPOST