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Claude Opus 4.8

Anthropic
anthropic/claude-opus-4-8

Released May 28, 2026

providers
1
context
1.0M
max out
128K
input /M
$5.00
output /M
$25.00
cached input /M
$0.50
cache write /M
$6.25
reasoning /M
$25.00
also answers toclaude-opus4-8claude-opus-4.8anthropic-claude-opus-4.8anthropic.claude-opus-4-8anthropic/claude-opus-4.8

About

knowledge cutoff
Jan 1, 2026
open weights
no
best for
computeextractioncoding

Capabilities

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

  • streaming
  • tools
  • json mode
  • vision
  • audio