Claude Opus 5 (Fast)on Krater.ai

Fast-mode variant of Opus 5 - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs:

Released July 24, 2026

Specifications

Claude Opus 5 (Fast) at a glance

Context

1M tokens

Max output

128K tokens

Input

Text, Image, File

Output

Text

Input price

$10.00 / 1M

Output price

$50.00 / 1M

Krater rank

#34

Image inputTool callingStructured outputsReasoning supportProvider moderated

Capabilities

What it is good at

Catalog capabilities

  • Accepts image input
  • Generates text responses
  • Supports tool calling
  • Supports structured outputs

Good for

Image understandingLong documentsUse with toolsStructured responsesDeep analysis

FAQ

Questions about Claude Opus 5 (Fast)

Clear answers based on the model catalog and Krater access.

Claude Opus 5 (Fast) supports a context window of 1,000,000 tokens.

Use Claude Opus 5 (Fast) in your API

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API access

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