Claude Opus 4.8on Krater.ai
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token
Released May 27, 2026
Specifications
Claude Opus 4.8 at a glance
Context
1M tokens
Max output
128K tokens
Input
Text, Image, File
Output
Text
Input price
$5.00 / 1M
Output price
$25.00 / 1M
Krater rank
#27
Is Claude down?
Claude slow or throwing errors? The live Claude status page shows Anthropic incidents and which Krater models to use meanwhile.
Live Claude statusCapabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
74.3
Agentic index score
41.9
Intelligence index score
41.8
Design Arena agenticslides rank
#1
Design Arena agenticslides(python-pptx) rank
#1
Compare
Compare Claude Opus 4.8
Claude Opus 4.8 vs Claude Sonnet 5.5
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade.
Open comparisonClaude Opus 4.8 vs Claude Fable 5.1
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual
Open comparisonClaude Opus 4.8 vs Claude Opus 5.5
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.
Open comparisonFAQ
Questions about Claude Opus 4.8
Clear answers based on the model catalog and Krater access.
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