Claude Opus 4.8 (Fast)on Krater.ai
Fast-mode variant of Opus 4.8 - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs:
Released May 27, 2026
Specifications
Claude Opus 4.8 (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
#46
Capabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Compare
Compare Claude Opus 4.8 (Fast)
Claude Opus 4.8 (Fast) vs Claude Opus 4.7 (Fast)
Fast-mode variant of Opus 4.7 - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs:
Open comparisonClaude Opus 4.8 (Fast) vs Claude Opus 5 (Fast)
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:
Open comparisonClaude Opus 4.8 (Fast) vs Claude Opus 4.6
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.
Open comparisonFAQ
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