Claude Opus 4.1on Krater.ai
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains
Released August 5, 2025
Specifications
Claude Opus 4.1 at a glance
Context
200K tokens
Max output
32K tokens
Input
Image, Text, File
Output
Text
Input price
$15.00 / 1M
Output price
$75.00 / 1M
Knowledge cutoff
2025-01-31
Krater rank
#93
Capabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Design Arena asciiart rank
#21
Design Arena svg rank
#29
Compare
Compare Claude Opus 4.1
Claude Opus 4.1 vs Claude Fable 5 (batch)
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.
Open comparisonClaude Opus 4.1 vs Claude Opus 4.5
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use.
Open comparisonClaude Opus 4.1 vs Claude Opus 4.6
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.
Open comparisonFAQ
Questions about Claude Opus 4.1
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