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Anthropic: Claude Opus 4.8 (Fast)
Anthropic·Released 2026-05-27
1.0M ctxMultimodal
Comparison data ready55% coverage10/10 fields directly observedUpdated Jul 13, 2026, 9:31 PM
About
Fast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
Related Models
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Pricing
Input
$10.00
per 1M tokens
Output
$50.00
per 1M tokens
Blended
$20.00
per 1M tokens
Cheaper than 3% of models. Median price is $0.67/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
Daily
$20.00
Monthly
$600.00
vs. Similar Models
Anthropic: Claude Fable 5
$20.000%
Anthropic: Claude Fable Latest
$20.000%
OpenAI: o3 Deep Research
$17.50-13%
OpenAI: GPT-4 Turbo
$15.00-25%
Performance
Context Window
1.0M
tokens
Larger than 80% of models
Max Output
128K
tokens
13% of context
Context Window Comparison
Anthropic: Claude Fable 5
1.0MSame
Anthropic: Claude Opus 4.8
1.0MSame
Anthropic: Claude Opus 4.7
1.0MSame