Claude Opus 5.5

Capabilities

Context Window

1,000,000 tokens

Max Output

128,000 tokens

Released

September 22, 2026

Knowledge Cutoff

June 2026

Modalities

Input: text, image

Output: text

Latency

–

Median time to first token over the last 30 days. Not enough samples yet.

Pricing Details

Compare to other Anthropic models

• Claude 3.5 Haiku
  $0.80 / $4.00 per M tokens
• Claude 3.7 Sonnet
  $3.00 / $15.00 per M tokens
• Claude 3 Haiku
  $0.25 / $1.25 per M tokens
• Claude Haiku 4.5
  $1.00 / $5.00 per M tokens
• Claude Haiku 5.5
  $0.10 / $0.50 per M tokens
• Claude Opus 4.6
  $5.00 / $25.00 per M tokens