Claude Sonnet 4.5 (batch)on Krater.ai
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with
Released September 29, 2025
Specifications
Claude Sonnet 4.5 (batch) at a glance
Context
1M tokens
Max output
64K tokens
Input
Text, Image, File
Output
Text
Input price
$1.50 / 1M
Output price
$7.50 / 1M
Knowledge cutoff
2025-01-31
Capabilities
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
52.1
Agentic index score
17.5
Intelligence index score
21.2
Design Arena asciiart rank
#20
Design Arena mobileapps rank
#26
Compare
Compare Claude Sonnet 4.5 (batch)
Claude Sonnet 4.5 (batch) vs Claude Sonnet 4.6 (batch)
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.
Open comparisonClaude Sonnet 4.5 (batch) 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 Sonnet 4.5 (batch) vs Claude Fable 5 (batch)
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.
Open comparisonFAQ
Questions about Claude Sonnet 4.5 (batch)
Clear answers based on the model catalog and Krater access.
Use Claude Sonnet 4.5 (batch) in your API
Connect with Krater's unified API.
Ready to use Claude Sonnet 4.5 (batch)?
Access leading models in one focused workspace.