All models

Claude Sonnet 5.5

Anthropic
anthropic/claude-sonnet-5-5

Released Sep 29, 2026

providers
1
context
1.0M
max out
128K
input /M
$2.00
output /M
$10.00
cached input /M
$0.20
cache write /M
$2.50
reasoning /M
$10.00
also answers toclaude-sonnet-5.5anthropic-claude-sonnet-5.5anthropic.claude-sonnet-5-5anthropic/claude-sonnet-5.5-20260928

About

knowledge cutoff
Jun 1, 2026
open weights
no
best for
extractioncodingcompute

Capabilities

What the model accepts and returns, where a probe through our own gateway proved it.

  • streaming
  • tools
  • json mode
  • vision
  • audio